{"id":16902,"date":"2026-02-06T13:51:25","date_gmt":"2026-02-06T12:51:25","guid":{"rendered":"https:\/\/stefly.aero\/?post_type=product&#038;p=16902"},"modified":"2026-07-22T23:21:30","modified_gmt":"2026-07-22T21:21:30","slug":"larus-segelflug-sensoreinheit-kopie","status":"publish","type":"product","link":"https:\/\/stefly.aero\/en\/product\/larus-segelflug-sensoreinheit-kopie\/","title":{"rendered":"LARUS Segelflug-Sensoreinheit (Kopie)"},"content":{"rendered":"<div class=\"et_pb_section_0 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_0 et_pb_row et_block_row\"><div class=\"et_pb_column_0 et_pb_column et_pb_column_4_4 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_wc_cart_notice_0 et_pb_wc_cart_notice et_pb_fields_layout_default et_pb_woo_custom_button_icon et_pb_module\" data-button-class=\"button\" data-button-icon=\"5\" data-button-icon-tablet=\"\" data-button-icon-phone=\"\"><div class=\"et_pb_module_inner\">\n\t<div class=\"woocommerce-message\" role=\"alert\">\n\t\t&ldquo;Product Name&rdquo; has been added to cart.\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"et_pb_row_1 et_pb_row et_block_row\"><div class=\"et_pb_column_1 et_pb_column et_pb_column_1_2 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_wc_gallery_0 et_pb_wc_gallery et_pb_gallery et_pb_wc_gallery_module et_pb_gallery_fullwidth et_pb_simple_slider et_pb_slider et_pb_module\"><div class=\"et_pb_module_placeholder\">No gallery images found for this product.<\/div><\/div><\/div><div class=\"et_pb_column_2 et_pb_column et_pb_column_1_2 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_wc_title_0 et_pb_wc_title et_pb_bg_layout_light et_pb_module\"><div class=\"et_pb_module_inner\">\n\t\t<h1>LARUS Segelflug-Sensoreinheit (Kopie)<\/h1><\/div><\/div><div class=\"et_pb_divider_0 et_pb_divider et_pb_space et_pb_divider_position_bottom et_pb_module\"><div class=\"et_pb_divider_internal\"><\/div><\/div><div class=\"et_pb_accordion_0 et_pb_accordion et_pb_module et_block_module\"><\/div><\/div><\/div><div class=\"et_pb_row_2 et_pb_row et_block_row\"><div class=\"et_pb_column_3 et_pb_column et_pb_column_2_5 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_0 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><h2>High end variometer. Precise real-time wind determination. Artificial horizon.<\/h2>\n<\/div><\/div><div class=\"et_pb_divider_1 et_pb_divider_hidden et_pb_space et_pb_divider_position_top et_pb_module\"><div class=\"et_pb_divider_internal\"><\/div><\/div><div class=\"et_pb_text_1 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p>In der \"Black Box\" sind hochpr\u00e4zise Sensoren zur Messung von Beschleunigung, Magnetfeld und Druck sowie GNSS-Empf\u00e4nger der neuesten Generation, verbaut. Kombiniert mit ausgekl\u00fcgelten Algorithmen l\u00e4sst sich Thermik und Wind in Richtung und St\u00e4rke blitzschnell und \u00fcberaus zuverl\u00e4ssig berechnen.<\/p>\n<\/div><\/div><div class=\"et_pb_image_0 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/07\/LARUS_LOGO-k.png\" width=\"500\" height=\"541\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/07\/LARUS_LOGO-k.png 500w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/07\/LARUS_LOGO-k-480x519.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 500px, 100vw\" class=\"wp-image-13253\" title=\"LARUS_E-Vario_Windberechnung_Logo\" alt=\"LARUS_E-Vario_Windberechnung_Logo\" \/><\/span><\/div><div class=\"et_pb_text_2 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p>The philosophy: better to measure than to estimate!<\/p>\n<\/div><\/div><div class=\"et_pb_text_3 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p>SteFly produces and distributes the high-end variometer under license developed by the LARUS project team led by Prof. Dr. Klaus Sch\u00e4fer, Horst Rupp and Maximilian Betz.<\/p>\n<\/div><\/div><\/div><div class=\"et_pb_column_4 et_pb_column et_pb_column_3_5 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_image_1 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/07\/Larus-Segelflugsensor-mit-Zubehoer.jpg\" width=\"1080\" height=\"1080\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/07\/Larus-Segelflugsensor-mit-Zubehoer.jpg 1080w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/07\/Larus-Segelflugsensor-mit-Zubehoer-980x980.jpg 980w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/07\/Larus-Segelflugsensor-mit-Zubehoer-480x480.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1080px, 100vw\" class=\"wp-image-13246\" title=\"Larus Segelflugsensor mit Zubeh\u00f6r\" alt=\"Larus Segelflugsensor mit Zubeh\u00f6r\" \/><\/span><\/div><\/div><\/div><\/div><div class=\"et_pb_section_1 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_3 et_pb_row et_block_row\"><div class=\"et_pb_column_5 et_pb_column et_pb_column_4_4 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_video_0 et_pb_video et_pb_module et_block_module\"><div class=\"et_pb_video_box\"><iframe hcb-fetch-image-from=\"https:\/\/www.youtube.com\/watch?v=RoCG2RNBR_k\" title=\"LARUS Variometer \u2013 The Gamechanger\" width=\"1080\" height=\"608\" src=\"https:\/\/www.youtube.com\/embed\/RoCG2RNBR_k?feature=oembed\"  allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div><\/div><\/div><\/div><\/div><div class=\"et_pb_section_2 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_4 et_pb_row et_block_row\"><div class=\"et_pb_column_6 et_pb_column et_pb_column_1_2 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_4 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p>How does LARUS work?<\/p>\n<\/div><\/div><div class=\"et_pb_text_5 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\">In short: Data from one (or two) GNSS receiver(s), an IMU (inertial measurement unit) and pressure sensors for static pressure and dynamic pressure are combined and evaluated in the LARUS sensor unit using special algorithms. The results are transferred to a display device via a serial interface or Bluetooth. For example, all OpenVarios or other devices running XCSoar are compatible with the LARUS sensor unit.<\/p>\n<\/div><\/div><div class=\"et_pb_text_6 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p><strong>In principle, LARUS calculates:<\/strong><\/p>\n<ul>\n<li>Energy-compensated climb or sink (variometer)<\/li>\n<li>Horizontal wind speed as an instantaneous value (live \/ real-time wind) and a value averaged over an adjustable period (e.g. 30 s)<\/li>\n<li>Attitude for display in an artificial horizon<\/li>\n<li>Pressure altitude \/ flight level FL<\/li>\n<li>True airspeed (TAS)<\/li>\n<li>Course over the ground (track)<\/li>\n<li>Drift angle (difference between track and heading)<\/li>\n<\/ul>\n<\/div><\/div><\/div><div class=\"et_pb_column_7 et_pb_column et_pb_column_1_2 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_slider_0 et_pb_slider et_pb_slider_fullwidth_off et_slider_auto et_slider_speed_7000 et_animated et_pb_module et_block_module\"><div class=\"et_pb_slides\"><div class=\"et_pb_slide_0 et_pb_slide et_pb_media_alignment_center et_pb_bg_layout_dark et_pb_text_align_center\" data-slide-id=\"divi\/slide-0\"><div class=\"et_pb_container\"><div class=\"et_pb_slider_container_inner\"><div class=\"et_pb_slide_description\"><\/div><\/div><\/div><\/div><div class=\"et_pb_slide_1 et_pb_slide et_pb_media_alignment_center et_pb_bg_layout_dark et_pb_text_align_center\" data-slide-id=\"divi\/slide-1\"><div class=\"et_pb_container\"><div class=\"et_pb_slider_container_inner\"><div class=\"et_pb_slide_description\"><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"et_pb_text_7 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\">In the Essential variant, LARUS has installed a precise GNSS receiver with an external active antenna. In the LARUS Dual-GNSS variant, on the other hand, a high-precision dual-band receiver is connected to two active, multi-frequency band antennas.<\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"et_pb_section_3 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_5 et_pb_row et_block_row\"><div class=\"et_pb_column_8 et_pb_column et_pb_column_1_2 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_8 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><h2>GNSS<\/h2>\n<\/div><\/div><div class=\"et_pb_text_9 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\">In recent years, location determination using GNSS (Global Navigation Satellite System) has become much more accurate. Because GNSS also includes satellites from GLONASS, Galileo and BeiDou in addition to GPS satellites, the modern GNSS receivers installed in the LARUS sensor box can achieve a horizontal positioning accuracy of 1.5 - 2 m. In addition, the ground speed is measured three-dimensionally and used to support the flight attitude measurement and as a measured variable for the variometer.<\/p>\n<p style=\"font-weight: 400;\">The accuracy of the speed measurement is:<\/p>\n<ul>\n<li>LARUS Essential with uBlox M9N single-frequency receiver and GNSS antenna: horizontal approx. 0.1 km\/h; vertical approx. 5 cm\/s<\/li>\n<li>LARUS Dual GNSS with uBlox F9P dual GNSS receiver: horizontal approx. 0.05 km\/h; vertical approx. 2.5 cm\/s<\/li>\n<\/ul>\n<\/div><\/div><\/div><div class=\"et_pb_column_9 et_pb_column et_pb_column_1_2 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_image_2 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/10\/LARUS-front-antenna-Ventus-3-hor.jpg\" width=\"2048\" height=\"1152\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/10\/LARUS-front-antenna-Ventus-3-hor.jpg 2048w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/10\/LARUS-front-antenna-Ventus-3-hor-1280x720.jpg 1280w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/10\/LARUS-front-antenna-Ventus-3-hor-980x551.jpg 980w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/10\/LARUS-front-antenna-Ventus-3-hor-480x270.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 2048px, 100vw\" class=\"wp-image-16338\" title=\"LARUS front antenna Ventus 3 hor\" alt=\"LARUS front antenna Ventus 3\" \/><\/span><\/div><\/div><\/div><\/div><div class=\"et_pb_section_4 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_6 et_pb_row et_block_row\"><div class=\"et_pb_column_10 et_pb_column et_pb_column_1_2 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_image_3 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/10\/LARUS-Horizont-ASG.jpg\" width=\"1200\" height=\"675\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/10\/LARUS-Horizont-ASG.jpg 1200w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/10\/LARUS-Horizont-ASG-980x551.jpg 980w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/10\/LARUS-Horizont-ASG-480x270.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1200px, 100vw\" class=\"wp-image-16339\" title=\"LARUS Horizont ASG\" alt=\"LARUS Horizont ASG\" \/><\/span><\/div><div class=\"et_pb_text_10 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\">With LARUS Dual-GNSS, the accuracy of the heading can be improved to approx. 0.05 degrees by using a D-GNSS \"compass\" (2 coupled differential GNSS receivers, here uBlox F9P).<\/p>\n<p style=\"font-weight: 400;\">The flight attitude measurement can be used for an artificial horizon as well as for the precise display of the current drift angle (track \u2013 heading).<\/p>\n<\/div><\/div><div class=\"et_pb_image_4 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Funktionsweise-IMU.jpg\" width=\"1500\" height=\"444\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Funktionsweise-IMU.jpg 1500w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Funktionsweise-IMU-1280x379.jpg 1280w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Funktionsweise-IMU-980x290.jpg 980w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Funktionsweise-IMU-480x142.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1500px, 100vw\" class=\"wp-image-12304\" title=\"Funktionsweise IMU\" \/><\/span><\/div><\/div><div class=\"et_pb_column_11 et_pb_column et_pb_column_1_2 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_11 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><h2>IMU<\/h2>\n<\/div><\/div><div class=\"et_pb_text_12 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\">Inertial Measurement Unit (IMU) describes an inertial measurement unit that combines several inertial sensors. LARUS relies on the high-quality IMU XSENS MTi-1. It measures three-dimensional acceleration, yaw rate and magnetic field.<\/p>\n<p style=\"font-weight: 400;\">The flight attitude is calculated from this data by comparing it with the speed data of the GNSS (AHRS function).<\/p>\n<p style=\"font-weight: 400;\">When circling, the heading is determined by comparing the acceleration (determined from the flight path using the GNSS positions) and the AHRS. You don't need a magnetic compass for this. The Larus sensor unit automatically determines the calibration of the magnetic compass during circling flight, so that it can then be used to measure the magnetic heading in straight flight. Together with the adjustable magnetic declination, true heading (relative to true north) can be measured with an accuracy of about 1-2 degrees.<\/p>\n<\/div><\/div><div class=\"et_pb_image_5 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-Steuerkurs.jpg\" width=\"1500\" height=\"393\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-Steuerkurs.jpg 1500w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-Steuerkurs-1280x335.jpg 1280w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-Steuerkurs-980x257.jpg 980w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-Steuerkurs-480x126.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1500px, 100vw\" class=\"wp-image-12305\" title=\"Berechnung Steuerkurs\" \/><\/span><\/div><\/div><\/div><\/div><div class=\"et_pb_section_5 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_7 et_pb_row et_block_row\"><div class=\"et_pb_column_12 et_pb_column et_pb_column_1_2 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_13 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><h2>Pressure Sensors<\/h2>\n<\/div><\/div><div class=\"et_pb_text_14 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\">The Larus sensor box contains pressure sensors for measuring static pressure and dynamic pressure. The static pressure is required to display the pressure altitude and the flight level FL. It is also used to determine air density.<\/p>\n<p style=\"font-weight: 400;\">The indicated airspeed IAS is formed from the dynamic pressure.<\/p>\n<p style=\"font-weight: 400;\">The true airspeed TAS is calculated from the indicated airspeed, taking into account the current air density. LARUS calculates the air density in real time by comparing the GNSS altitude with the pressure altitude, without having to measure the temperature or humidity. LARUS then uses the TAS to calculate the wind speed.<\/p>\n<\/div><\/div><div class=\"et_pb_image_6 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-TAS.jpg\" width=\"1500\" height=\"358\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-TAS.jpg 1500w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-TAS-1280x305.jpg 1280w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-TAS-980x234.jpg 980w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-TAS-480x115.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1500px, 100vw\" class=\"wp-image-12307\" title=\"Berechnung TAS\" \/><\/span><\/div><\/div><div class=\"et_pb_column_13 et_pb_column et_pb_column_1_2 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_image_7 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/10\/LARUS-ideal-installation-position.jpg\" width=\"1200\" height=\"675\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/10\/LARUS-ideal-installation-position.jpg 1200w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/10\/LARUS-ideal-installation-position-980x551.jpg 980w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/10\/LARUS-ideal-installation-position-480x270.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1200px, 100vw\" class=\"wp-image-16340\" title=\"LARUS ideal installation position\" alt=\"LARUS ideal installation position\" \/><\/span><\/div><\/div><\/div><\/div><div class=\"et_pb_section_6 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_8 et_pb_row et_block_row\"><div class=\"et_pb_column_14 et_pb_column et_pb_column_1_2 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_slider_1 et_pb_slider et_pb_slider_fullwidth_off et_slider_auto et_slider_speed_7000 et_animated et_pb_module et_block_module\"><div class=\"et_pb_slides\"><div class=\"et_pb_slide_2 et_pb_slide et_pb_media_alignment_center et_pb_bg_layout_dark et_pb_text_align_center\" data-slide-id=\"divi\/slide-2\"><div class=\"et_pb_container\"><div class=\"et_pb_slider_container_inner\"><div class=\"et_pb_slide_description\"><\/div><\/div><\/div><\/div><div class=\"et_pb_slide_3 et_pb_slide et_pb_media_alignment_center et_pb_bg_layout_dark et_pb_text_align_center\" data-slide-id=\"divi\/slide-3\"><div class=\"et_pb_container\"><div class=\"et_pb_slider_container_inner\"><div class=\"et_pb_slide_description\"><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"et_pb_column_15 et_pb_column et_pb_column_1_2 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_15 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><h2>GNSS Antennas<\/h2>\n<\/div><\/div><div class=\"et_pb_text_16 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p>LARUS comes with highly accurate GNSS antennas from brand-name manufacturers that can receive multiple bands. For optimal reception of GNSS signals, we recommend installing ground plates.<\/p>\n<p>The rear GNSS antenna cannot be installed in the luggage compartment area of aircraft with CFRP fuselage tubes. We have therefore developed and tested several alternative options, e.g.:<\/p>\n<ul>\n<li>For self-launchers and gliders with retractable engines, install the antenna in the engine compartment if the engine cowlings are made of GRP or can be modified retrospectively.<\/li>\n<li>Attachment of a special canopy antenna<\/li>\n<li>Attachment of a special, teardrop-shaped external fuselage antenna<\/li>\n<\/ul>\n<p><strong>An antenna splitter can be used to make the signals from a LARUS GNSS antenna available to the FLARM. This saves one antenna.\u00a0<\/strong><\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"et_pb_section_7 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_9 et_pb_row et_pb_gutters2 et_block_row\"><div class=\"et_pb_column_16 et_pb_column et_pb_column_1_3 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_17 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p><strong>Standard antenna U-Blox ANN-MB-00 with ground plate<\/strong><\/p>\n<\/div><\/div><div class=\"et_pb_image_8 et_pb_image et_pb_module et_block_module\"><a href=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/08\/Ground-plate-with-dual-GNSS-antenna-ANN-MB-00-drawing-v1.pdf\" target=\"_blank\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/08\/Ground-plate-with-dual-GNSS-antenna-ANN-MB-00-drawing-v1.jpg\" width=\"1653\" height=\"2339\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/08\/Ground-plate-with-dual-GNSS-antenna-ANN-MB-00-drawing-v1.jpg 1653w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/08\/Ground-plate-with-dual-GNSS-antenna-ANN-MB-00-drawing-v1-1280x1811.jpg 1280w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/08\/Ground-plate-with-dual-GNSS-antenna-ANN-MB-00-drawing-v1-980x1387.jpg 980w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/08\/Ground-plate-with-dual-GNSS-antenna-ANN-MB-00-drawing-v1-480x679.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1653px, 100vw\" class=\"wp-image-16127\" title=\"Ground plate with dual-GNSS antenna ANN-MB-00 drawing v1\" \/><\/span><\/a><\/div><div class=\"et_pb_text_18 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><ul>\n<li>The proven standard solution for excellent GNSS reception<\/li>\n<li>Ideally, the ground plate included in the scope of delivery should be mounted.<\/li>\n<li>With slight losses in reception quality, however, a smaller metal sheet can also be used as a ground plate, or an additional ground plate can be completely eliminated.<\/li>\n<\/ul>\n<\/div><\/div><\/div><div class=\"et_pb_column_17 et_pb_column et_pb_column_1_3 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_19 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p><strong>Canopy Antenna<\/strong><\/p>\n<\/div><\/div><div class=\"et_pb_image_9 et_pb_image et_pb_module et_block_module\"><a href=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/08\/LARUS-Canopy-Antenna-Assembly-V2.0.pdf\" target=\"_blank\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/08\/LARUS-Canopy-Antenna-Assembly-V2.0.jpg\" width=\"1653\" height=\"2339\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/08\/LARUS-Canopy-Antenna-Assembly-V2.0.jpg 1653w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/08\/LARUS-Canopy-Antenna-Assembly-V2.0-1280x1811.jpg 1280w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/08\/LARUS-Canopy-Antenna-Assembly-V2.0-980x1387.jpg 980w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/08\/LARUS-Canopy-Antenna-Assembly-V2.0-480x679.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1653px, 100vw\" class=\"wp-image-16129\" title=\"LARUS Canopy Antenna Assembly V2.0\" \/><\/span><\/a><\/div><div class=\"et_pb_text_20 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><ul>\n<li>The solution for aircraft with CFRP fuselage tubes in which the rear antenna cannot be mounted in the luggage compartment or no other suitable mounting location can be found that is sufficiently distant from other GPS antennas (Flarm).<\/li>\n<li>Mounted on the inside of the cockpit canopy using 3M VHB adhesive tape<\/li>\n<li>The low design and installation position at the rear end of the canopy above the pilot's\/co-pilot's head provide optimum headroom and do not restrict visibility.<\/li>\n<li>A ground plate is essential. If the ground plate included in the scope of delivery cannot be installed, a smaller one may be used instead. The minimum requirement is to cover the entire underside of the plastic housing with a metal foil.<\/li>\n<\/ul>\n<\/div><\/div><\/div><div class=\"et_pb_column_18 et_pb_column et_pb_column_1_3 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_21 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p><strong>Teardrop-shaped external antenna<\/strong><\/p>\n<\/div><\/div><div class=\"et_pb_image_10 et_pb_image et_pb_module et_block_module\"><a href=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/08\/LARUS-Outside-Antenna-v1.0.pdf\" target=\"_blank\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/08\/LARUS-Outside-Antenna-v1.0.jpg\" width=\"1653\" height=\"2339\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/08\/LARUS-Outside-Antenna-v1.0.jpg 1653w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/08\/LARUS-Outside-Antenna-v1.0-1280x1811.jpg 1280w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/08\/LARUS-Outside-Antenna-v1.0-980x1387.jpg 980w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/08\/LARUS-Outside-Antenna-v1.0-480x679.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1653px, 100vw\" class=\"wp-image-16128\" title=\"LARUS Outside Antenna v1.0\" \/><\/span><\/a><\/div><div class=\"et_pb_text_22 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><ul>\n<li>The solution for the rear dual GNSS antenna when mounting the canopy antenna is not an option<\/li>\n<li>Mount the external antenna centrally on the fuselage spine behind the cockpit using 3M VHB adhesive tape.<\/li>\n<li>Negligible effect on aerodynamics<\/li>\n<li>The antenna cable to the LARUS box is fed through a 3.3 mm diameter hole in the fuselage shell.<\/li>\n<li>A ground plate is not required, as the CFRP fuselage shields interference signals from inside the fuselage.<\/li>\n<\/ul>\n<\/div><\/div><\/div><\/div><\/div><div class=\"et_pb_section_8 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_10 et_pb_row et_block_row\"><div class=\"et_pb_column_19 et_pb_column et_pb_column_1_2 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_23 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><h2>Algorithms<\/h2>\n<\/div><\/div><div class=\"et_pb_text_24 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\"><strong>Calculation of (real-time) wind speed<\/strong><\/p>\n<p style=\"font-weight: 400;\">LARUS determines the wind speed from the three-dimensional difference between ground speed and flight speed. Both a short-term mean value and a long-term mean value are output. The periods differ as follows:<\/p>\n<\/div><\/div><div class=\"et_pb_text_25 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><ul>\n<li>In straight flight, the time period for short-term wind is 5 s and for long-term wind 30 s (default setting; both times are configurable)<\/li>\n<li>When circling, the short-term wind is the mean of the last circle, while the long-term wind is the accumulated mean over the entire time of the last circling phase<\/li>\n<\/ul>\n<\/div><\/div><\/div><div class=\"et_pb_column_20 et_pb_column et_pb_column_1_2 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_image_11 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-Windgeschwindigkeit-Durchschnitt.jpg\" width=\"1500\" height=\"416\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-Windgeschwindigkeit-Durchschnitt.jpg 1500w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-Windgeschwindigkeit-Durchschnitt-1280x355.jpg 1280w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-Windgeschwindigkeit-Durchschnitt-980x272.jpg 980w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-Windgeschwindigkeit-Durchschnitt-480x133.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1500px, 100vw\" class=\"wp-image-12317\" title=\"Berechnung Windgeschwindigkeit Durchschnitt\" \/><\/span><\/div><div class=\"et_pb_text_26 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\">A special algorithm detects and eliminates deviations in circular flight that result from a change in the angle of attack.<\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"et_pb_section_9 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_11 et_pb_row et_block_row\"><div class=\"et_pb_column_21 et_pb_column et_pb_column_1_2 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_slider_2 et_pb_slider et_pb_slider_fullwidth_off et_slider_auto et_slider_speed_7000 et_animated et_pb_module et_block_module\"><div class=\"et_pb_slides\"><div class=\"et_pb_slide_4 et_pb_slide et_pb_media_alignment_center et_pb_bg_layout_dark et_pb_text_align_center\" data-slide-id=\"divi\/slide-4\"><div class=\"et_pb_container\"><div class=\"et_pb_slider_container_inner\"><div class=\"et_pb_slide_description\"><\/div><\/div><\/div><\/div><div class=\"et_pb_slide_5 et_pb_slide et_pb_media_alignment_center et_pb_bg_layout_dark et_pb_text_align_center\" data-slide-id=\"divi\/slide-5\"><div class=\"et_pb_container\"><div class=\"et_pb_slider_container_inner\"><div class=\"et_pb_slide_description\"><\/div><\/div><\/div><\/div><div class=\"et_pb_slide_6 et_pb_slide et_pb_media_alignment_center et_pb_bg_layout_dark et_pb_text_align_center\" data-slide-id=\"divi\/slide-6\"><div class=\"et_pb_container\"><div class=\"et_pb_slider_container_inner\"><div class=\"et_pb_slide_description\"><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"et_pb_text_27 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\">With the introduction of the LARUS Vario display, all information can now be displayed clearly and attractively on a separate round instrument. The round display with a diameter of 57 mm offers plenty of space.<\/p>\n<\/div><\/div><div class=\"et_pb_text_28 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\">LARUS Sensor Box and LARUS Vario Display can also be installed as a stand-alone unit. A navigation computer or smartphone with XCSoar \/ OpenSoar is not required in this case.<\/p>\n<\/div><\/div><div class=\"et_pb_module et_pb_button_module_wrapper et_pb_button_0_wrapper\"><a class=\"et_pb_button_0 et_pb_button et_pb_bg_layout_light et_pb_module et_block_module\" href=\"https:\/\/stefly.aero\/en\/product\/larus-vario-display\/\" target=\"_blank\" data-icon=\"$\">All information <\/a><\/div><\/div><div class=\"et_pb_column_22 et_pb_column et_pb_column_1_2 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_29 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><h2>Variometer<\/h2>\n<\/div><\/div><div class=\"et_pb_text_30 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\">The LARUS sensor uses a Kalman filter to combine GNSS altitude, GNSS speed and vertical acceleration determined by the Inertial Measurement Unit (IMU).<\/p>\n<p style=\"font-weight: 400;\">This algorithm has virtually no inertia and provides a highly accurate (uncompensated) variometer instantaneously and without using pressure data.<\/p>\n<p style=\"font-weight: 400;\">The speed compensation is generated by differentiating the speed through the air. For this purpose, the ground speed of the GNSS and the average horizontal wind speed are used to calculate the kinetic energy of the three-dimensional movement.<\/p>\n<\/div><\/div><div class=\"et_pb_image_12 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-Variometer.jpg\" width=\"1500\" height=\"493\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-Variometer.jpg 1500w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-Variometer-1280x421.jpg 1280w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-Variometer-980x322.jpg 980w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Berechnung-Variometer-480x158.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1500px, 100vw\" class=\"wp-image-12310\" title=\"Berechnung Variometer\" \/><\/span><\/div><\/div><\/div><\/div><div class=\"et_pb_section_10 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_12 et_pb_row et_block_row\"><div class=\"et_pb_column_23 et_pb_column et_pb_column_1_2 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_31 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><h2>OpenSoar with LARUS driver<\/h2>\n<\/div><\/div><div class=\"et_pb_text_32 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p>Uwe Augustin, glider pilot and IT expert, has developed with his open source programme <b>OpenSoar<\/b> a navigation solution with integrated vario display for Android and Linux (OpenVario). The LARUS driver is now also available in the widely used navigation software\u00a0<b>XCSoar<\/b>\u00a0.<\/p>\n<p>The variometer display familiar from XCSoar accesses the LARUS data via the RS232 interface. OpenSoar \/ XCSoar continues to generate the vario sound.<\/p>\n<p>Two separate wind arrows can be displayed directly in the moving map. This visualises the direction and strength of the current wind and the average wind over a longer period of time. In addition, new wind-related info boxes are available in OpenSoar.<\/p>\n<p>Another novelty is the artificial horizon, which is displayed on a separate page in OpenSoar. It is helpful, for example, to check the correct function and calibration of the IMU after installing the sensor unit.<\/p>\n<\/div><\/div><div class=\"et_pb_module et_pb_button_module_wrapper et_pb_button_1_wrapper\"><a class=\"et_pb_button_1 et_pb_button et_pb_bg_layout_light et_pb_module et_block_module\" href=\"https:\/\/opensoar.de\/releases\/\" target=\"_blank\" data-icon=\"$\">Link to OpenSoar<\/a><\/div><\/div><div class=\"et_pb_column_24 et_pb_column et_pb_column_1_2 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_image_13 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/05\/OpenVario-Windpfeile-Larus.jpeg\" width=\"1438\" height=\"1834\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/05\/OpenVario-Windpfeile-Larus.jpeg 1438w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/05\/OpenVario-Windpfeile-Larus-1280x1632.jpeg 1280w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/05\/OpenVario-Windpfeile-Larus-980x1250.jpeg 980w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/05\/OpenVario-Windpfeile-Larus-480x612.jpeg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1438px, 100vw\" class=\"wp-image-13095\" title=\"OpenVario Windpfeile Larus\" alt=\"OpenVario Windpfeile Larus\" \/><\/span><\/div><\/div><\/div><\/div><div class=\"et_pb_section_11 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_13 et_pb_row et_block_row\"><div class=\"et_pb_column_25 et_pb_column et_pb_column_4_4 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_image_14 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/05\/LARUS-Exemplary-Installation-scaled.jpg\" width=\"2880\" height=\"1514\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/05\/LARUS-Exemplary-Installation-scaled.jpg 2880w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/05\/LARUS-Exemplary-Installation-1280x673.jpg 1280w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/05\/LARUS-Exemplary-Installation-980x515.jpg 980w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/05\/LARUS-Exemplary-Installation-480x252.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 2880px, 100vw\" class=\"wp-image-13155\" title=\"LARUS Exemplary Installation\" alt=\"LARUS Exemplary Installation\" \/><\/span><\/div><\/div><\/div><\/div><div class=\"et_pb_section_12 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_14 et_pb_row et_block_row\"><div class=\"et_pb_column_26 et_pb_column et_pb_column_1_2 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_33 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><h2>Installation Instructions<\/h2>\n<\/div><\/div><div class=\"et_pb_text_34 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><ul>\n<li>Mount the sensor unit absolutely fix so that the position of the sensor unit in relation to the aircraft structure does not change under the influence of acceleration forces<\/li>\n<li>The LARUS sensor must be positioned as far away as possible from magnetic fields and bigger iron parts<\/li>\n<li>The installation orientation of the LARUS box is possible in all directions and only needs to be adjusted in the configuration file \"sensor_configuration.txt\". Nevertheless, we recommend to select the orientation with regard to the longitudinal axis of the aircraft during assembly according to the coordinate system printed on the LARUS housing. Ideally, the LARUS sensor unit is also mounted in such a way that it is roughly horizontal in normal flight and that the SD card remains accessible.<\/li>\n<li>The GNSS antennas must be mounted in such a way that there is \u2018visual contact\u2019 with as many satellites as possible. This means that they should be positioned approximately horizontally and above electrically conductive materials (including CFRP). Suitable installation locations are on or directly below the instrument cover, on the inside of an acrylic glass canopy, in the upper half of a GRP fuselage tube, under GRP engine cowlings, or using a special external antenna on the top of the fuselage.<\/li>\n<\/ul>\n<p style=\"font-weight: 400;\">\n<\/div><\/div><\/div><div class=\"et_pb_column_27 et_pb_column et_pb_column_1_2 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_35 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\"><strong>This applies in particular to LARUS Essential<\/strong><\/p>\n<p style=\"font-weight: 400;\">A requirement for high accuracy of LARUS is that the disruptive influence of magnetic fields in the vicinity of the sensor unit is minimized. This is particularly important for LARUS Essential. In particular, the inertial measurement unit IMU, which measures magnetic induction, is affected by magnets, variable magnetic fields or iron parts in terms of measurement accuracy. We recommend keeping the LARUS sensor unit as far away as possible (at least 20 cm) from loudspeakers and magnets. In addition, the fasteners in the immediate vicinity of the sensor box should be made of stainless steel, brass, plastic, aluminium or fibre composites. Iron parts are unsuitable as they generate a variable interference field with every movement of the aircraft.<\/p>\n<p style=\"font-weight: 400;\">The GNSS antenna, on the other hand, is not sensitive to magnetic fields. However, there must be no metal or CFRP between the GNSS antenna and the sky in order to avoid interfering with signal transmission.<\/p>\n<\/div><\/div><div class=\"et_pb_text_36 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\"><strong>This applies in particular to LARUS Dual-GNSS<\/strong><\/p>\n<p style=\"font-weight: 400;\">With LARUS Dual-GNSS, on the other hand, it is important that the two GNSS receivers are at least 1.0 meters apart.<\/p>\n<p style=\"font-weight: 400;\">The front GNSS antenna is usually mounted in the nose of the aircraft or in front of the instrument panel. The second antenna is attached, for example, to the end of the canopy, in the luggage compartment or in the engine compartment. For aircraft with CFRP fuselages, antennas for the outside of the fuselage are also available.<\/p>\n<p style=\"font-weight: 400;\">\n<\/div><\/div><\/div><\/div><\/div><div class=\"et_pb_section_13 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_15 et_pb_row et_block_row\"><div class=\"et_pb_column_28 et_pb_column et_pb_column_1_2 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_37 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><h2>LARUS Essential or LARUS Dual-GNSS?<\/h2>\n<\/div><\/div><div class=\"et_pb_text_38 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p>Pilots who decide for <strong>LARUS Essential<\/strong> will get a <strong>modern variometer and wind calculation system<\/strong>that is clearly superior to other solutions and, in particular, all TEK nozzle systems. The reasons are obvious:<\/p>\n<ul>\n<li>Precision thanks to high-quality sensors for measuring acceleration, air pressure and magnetic fields<\/li>\n<li>GNSS technology (incorporating GPS, Galileo, GLONASS and BeiDou satellites)<\/li>\n<li>Sophisticated algorithm that is constantly being optimised<\/li>\n<li>Future-proof system thanks to free firmware updates<\/li>\n<li>Reduction of error and search cycles<\/li>\n<li>A thermal lift is never round. LARUS indicates the segment with the best lift, allowing you to centre it perfectly.<\/li>\n<\/ul>\n<\/div><\/div><div class=\"et_pb_text_39 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p>With the exception of the GNSS antennas and receivers, all LARUS variants have the same hardware components. But there is no question:\u00a0<b>LARUS Dual-GNSS <\/b>with two GNSS antennas is <b>the variometer and wind calculation system for competition pilots.<\/b>.<\/p>\n<p>In addition to the features of LARUS Essential, it is characterised by:<\/p>\n<ul>\n<li><span style=\"font-size: 16px;\">Unprecedented precision in determining the position through differential GNSS\u00a0<\/span><\/li>\n<li>Due to\u00a0<span style=\"font-size: 16px; background-color: #ffffff;\">D-GNSS Heading\u00a0<\/span>even during long straight flights without circling (cloud streets) always correct determination of the wind direction and strength<\/li>\n<li>Lower sensitivity to interfering magnetic fields, which facilitates installation and setup of the system<\/li>\n<li><span style=\"font-size: 16px;\">Thanks to the best possible wind determination, the quality of the E-Vario has been further improved.\u00a0<\/span><\/li>\n<\/ul>\n<\/div><\/div><div class=\"et_pb_text_40 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\">Cutting-edge technology for gliding<\/p>\n<\/div><\/div><div class=\"et_pb_text_41 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p>As a pilot, you continuously develop with every flying hour, every flying experience and every lesson learned. That is why we offer to retrofit LARUS Essential devices to LARUS Dual-GNSS if, for example, your focus shifts from recreational flying to mountain flying or competitive flying.<\/p>\n<\/div><\/div><\/div><div class=\"et_pb_column_29 et_pb_column et_pb_column_1_2 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_image_15 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Einfluss-Steuerkursgenauigkeit-auf-Windberechnung.jpg\" width=\"1500\" height=\"1254\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Einfluss-Steuerkursgenauigkeit-auf-Windberechnung.jpg 1500w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Einfluss-Steuerkursgenauigkeit-auf-Windberechnung-1280x1070.jpg 1280w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Einfluss-Steuerkursgenauigkeit-auf-Windberechnung-980x819.jpg 980w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/03\/Einfluss-Steuerkursgenauigkeit-auf-Windberechnung-480x401.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1500px, 100vw\" class=\"wp-image-12311\" title=\"Einfluss Steuerkursgenauigkeit auf Windberechnung\" \/><\/span><\/div><div class=\"et_pb_text_42 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\"><strong>Influence of the heading accuracy on the wind calculation in forward flight<\/strong><\/p>\n<p style=\"font-weight: 400;\">LARUS Essential (uBlox M9N single-frequency receiver) achieves a high course accuracy of 1-2\u00b0 under favourable installation conditions.<\/p>\n<p style=\"font-weight: 400;\">In contrast, the accuracy of heading determination with the Dual-GNSS variant is outstanding at 0.05\u00b0. This is particularly advantageous at high airspeed in level flight (under cloud streets). As the wind triangle illustrates, at an airspeed of 200 km\/h, 2\u00b0 corresponds to a 7 km\/h inaccuracy in the crosswind component, while 0.05\u00b0 corresponds to only a 0.2 km\/h inaccuracy.<\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"et_pb_section_14 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_16 et_pb_row et_block_row\"><div class=\"et_pb_column_30 et_pb_column et_pb_column_1_2 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_image_16 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/05\/Gliding-Ridge-New-Zealand.jpg\" width=\"908\" height=\"454\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/05\/Gliding-Ridge-New-Zealand.jpg 908w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/05\/Gliding-Ridge-New-Zealand-480x240.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 908px, 100vw\" class=\"wp-image-13117\" title=\"Gliding Ridge New Zealand\" alt=\"Gliding Ridge New Zealand\" \/><\/span><\/div><div class=\"et_pb_text_43 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\">LARUS License<\/p>\n<\/div><\/div><div class=\"et_pb_text_44 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\">Larus hardware is licensed accordingly to <strong> <a href=\"https:\/\/github.com\/larus-breeze\/hw_sensor\/blob\/master\/LICENSE.md\" rel=\"nofollow\">Creative Commons NonCommercial Share-alike 4.0 International<\/a>,\u00a0<\/strong>Larus software accordingly to <a href=\"https:\/\/github.com\/larus-breeze\/sw_sensor_algorithms\/blob\/main\/LICENSE\"><strong>GNU General Public License v3.0<\/strong><\/a>.<\/p>\n<p style=\"font-weight: 400;\">Licence fees paid by SteFly to the development team ensure long-term further development.<\/p>\n<\/div><\/div><\/div><div class=\"et_pb_column_31 et_pb_column et_pb_column_1_2 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_image_17 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/07\/LARUS_LOGO-k.png\" width=\"500\" height=\"541\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2023\/07\/LARUS_LOGO-k.png 500w, https:\/\/stefly.aero\/wp-content\/uploads\/2023\/07\/LARUS_LOGO-k-480x519.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 500px, 100vw\" class=\"wp-image-13253\" title=\"LARUS_E-Vario_Windberechnung_Logo\" alt=\"LARUS_E-Vario_Windberechnung_Logo\" \/><\/span><\/div><div class=\"et_pb_text_45 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\">What does LARUS mean?<\/p>\n<\/div><\/div><div class=\"et_pb_text_46 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p>Larus is the name for a gull genus that includes several of the largest gull species. Gulls are not only experts at taking advantage of slope winds, they are also dedicated thermal flyers. Their senses, instinct, and a lifetime of practice make seagulls a role model for us glider pilots. The LARUS gliding sensor unit aims to provide us pilots with the sensors and the precise information derived from them that we need for gliding due to a lack of suitable sensory organs: speed and altitude, wind direction and strength, rise or sink of the surrounding air.<br \/>\nLet us glider pilots use the energy in the atmosphere to full capacity!<\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"et_pb_section_15 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_17 et_pb_row et_block_row\"><div class=\"et_pb_column_32 et_pb_column et_pb_column_1_2 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_47 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p><strong>Firmware Update<\/strong><\/p>\n<\/div><\/div><div class=\"et_pb_text_48 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p><b>The standard procedure for an update is as follows:<\/b><\/p>\n<ol>\n<li>Copy the update file (file extension .bin) to the LARUS SD card via a computer<\/li>\n<li>Disconnect all cables from the LARUS except for the one that supplies power.<\/li>\n<li>Insert the SD card into the switched-off LARUS<\/li>\n<li>LARUS anschalten und so lange warten, bis die \"System\"-LED beginnt zu blinken (ca. 1 Minute)<\/li>\n<li>Check whether the new version has been installed: either activate sensor.readings or open the latest EEPROM file in the logger folder on the LARUS SD card with a text editor.<\/li>\n<\/ol>\n<\/div><\/div><div class=\"et_pb_text_49 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p>All firmware updates are available for download free of charge on the Github platform.<\/p>\n<\/div><\/div><div class=\"et_pb_text_50 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p><b>Please note<\/b>: There are two .bin files for each firmware version. The relevant file depends on the currently installed firmware version:<\/p>\n<ul>\n<li>If version 0.4.0 or older is currently installed, use larus_sensor_V2_image.bin, delete sensor_config.txt and replace it with the file larus_sensor_config.ini<\/li>\n<li>If version 0.5.0 or lower is currently installed, use larus_sensor_v1_v0-x-x-x.bin; a file named larus_sensor_config.ini.used should already be stored on the SD card, otherwise copy larus_sensor_config.ini to the card.<\/li>\n<li>There must only be one .bin file in the main folder of the SD card, so delete all .bin files from the SD card before copying a new .bin file to the card.<\/li>\n<\/ul>\n<\/div><\/div><div class=\"et_pb_module et_pb_button_module_wrapper et_pb_button_2_wrapper\"><a class=\"et_pb_button_2 et_pb_button et_pb_bg_layout_light et_pb_module et_block_module\" href=\"https:\/\/github.com\/larus-breeze\/sw_sensor\/releases\" target=\"_blank\" data-icon=\"$\">Link to the LARUS Project on Github<\/a><\/div><div class=\"et_pb_text_51 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p><strong>Instructions<\/strong><\/p>\n<\/div><\/div><div class=\"et_pb_divider_2 et_pb_divider et_pb_space et_pb_divider_position_top et_pb_module\"><div class=\"et_pb_divider_internal\"><\/div><\/div><div class=\"et_pb_cta_0 et_pb_promo et_pb_bg_layout_dark et_pb_module et_block_module\"><div class=\"et_pb_promo_description et_multi_view_hidden\"><\/div><div class=\"et_pb_button_wrapper\"><a class=\"et_pb_button et_pb_promo_button\" target=\"_blank\" href=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/06\/Larus_Installation_Operating_Manual_Version1.8_en.pdf\" data-icon=\"\uf1c1\" rel=\"noreferrer\">Installation \/ Operating Manual EN, 06\/2025<\/a><\/div><\/div><div class=\"et_pb_divider_3 et_pb_divider et_pb_space et_pb_divider_position_top et_pb_module\"><div class=\"et_pb_divider_internal\"><\/div><\/div><div class=\"et_pb_cta_1 et_pb_promo et_pb_bg_layout_dark et_pb_module et_block_module\"><div class=\"et_pb_promo_description et_multi_view_hidden\"><\/div><div class=\"et_pb_button_wrapper\"><a class=\"et_pb_button et_pb_promo_button\" target=\"_blank\" href=\"https:\/\/stefly.aero\/wp-content\/uploads\/2024\/06\/LARUS-STM-Update_de_V2.0.pdf\" data-icon=\"\uf1c1\" rel=\"noreferrer\">STM32 UPDATE DE<\/a><\/div><\/div><div class=\"et_pb_divider_4 et_pb_divider et_pb_space et_pb_divider_position_top et_pb_module\"><div class=\"et_pb_divider_internal\"><\/div><\/div><div class=\"et_pb_cta_2 et_pb_promo et_pb_bg_layout_dark et_pb_module et_block_module\"><div class=\"et_pb_promo_description et_multi_view_hidden\"><\/div><div class=\"et_pb_button_wrapper\"><a class=\"et_pb_button et_pb_promo_button\" target=\"_blank\" href=\"https:\/\/stefly.aero\/wp-content\/uploads\/2024\/06\/LARUS-STM-Update_en_V2.0.pdf\" data-icon=\"\uf1c1\" rel=\"noreferrer\">STM32 UPDATE EN<\/a><\/div><\/div><\/div><div class=\"et_pb_column_33 et_pb_column et_pb_column_1_2 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_image_18 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2024\/06\/Larus_Installation_Operating_Manual_V1.4_en_Seite_01.jpg\" width=\"1588\" height=\"2246\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2024\/06\/Larus_Installation_Operating_Manual_V1.4_en_Seite_01.jpg 1588w, https:\/\/stefly.aero\/wp-content\/uploads\/2024\/06\/Larus_Installation_Operating_Manual_V1.4_en_Seite_01-1280x1810.jpg 1280w, https:\/\/stefly.aero\/wp-content\/uploads\/2024\/06\/Larus_Installation_Operating_Manual_V1.4_en_Seite_01-980x1386.jpg 980w, https:\/\/stefly.aero\/wp-content\/uploads\/2024\/06\/Larus_Installation_Operating_Manual_V1.4_en_Seite_01-480x679.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1588px, 100vw\" class=\"wp-image-14620\" title=\"Larus_Installation_Operating_Manual_V1.4_en_Seite_01\" alt=\"Larus Installation Operating Manual V1.4\" \/><\/span><\/div><\/div><\/div><\/div><div class=\"et_pb_section_16 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_18 et_pb_row et_block_row\"><div class=\"et_pb_column_34 et_pb_column et_pb_column_1_2 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_image_19 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img decoding=\"async\" src=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/12\/Ground-Plate-LARUS-rear-with-spacer.jpg\" width=\"1698\" height=\"1206\" srcset=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/12\/Ground-Plate-LARUS-rear-with-spacer.jpg 1698w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/12\/Ground-Plate-LARUS-rear-with-spacer-1280x909.jpg 1280w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/12\/Ground-Plate-LARUS-rear-with-spacer-980x696.jpg 980w, https:\/\/stefly.aero\/wp-content\/uploads\/2025\/12\/Ground-Plate-LARUS-rear-with-spacer-480x341.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1698px, 100vw\" class=\"wp-image-16708\" title=\"Ground plate LARUS rear with spacers\" alt=\"Ground plate LARUS rear with spacers\" \/><\/span><\/div><\/div><div class=\"et_pb_column_35 et_pb_column et_pb_column_1_2 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_52 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p style=\"font-weight: 400;\">Inspirationen f\u00fcr den Einbau, Zeichnungen und 3D-Druckdateien<\/p>\n<\/div><\/div><div class=\"et_pb_cta_3 et_pb_promo et_pb_bg_layout_dark et_pb_module et_block_module\"><div class=\"et_pb_promo_description et_multi_view_hidden\"><\/div><div class=\"et_pb_button_wrapper\"><a class=\"et_pb_button et_pb_promo_button\" target=\"_blank\" href=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/12\/LARUS-Mounting-Bracket.zip\" data-icon=\"\ue05f\" rel=\"noreferrer\">Halteklammern LARUS Sensorbox          <\/a><\/div><\/div><div class=\"et_pb_cta_4 et_pb_promo et_pb_bg_layout_dark et_pb_module et_block_module\"><div class=\"et_pb_promo_description et_multi_view_hidden\"><\/div><div class=\"et_pb_button_wrapper\"><a class=\"et_pb_button et_pb_promo_button\" target=\"_blank\" href=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/12\/LARUS-Ground-Plate-with-spacers.zip\" data-icon=\"\ue05f\" rel=\"noreferrer\">Spacer f\u00fcr die Montage der Ground Plate an der Rumpfoberseite<\/a><\/div><\/div><div class=\"et_pb_cta_5 et_pb_promo et_pb_bg_layout_dark et_pb_module et_block_module\"><div class=\"et_pb_promo_description et_multi_view_hidden\"><\/div><div class=\"et_pb_button_wrapper\"><a class=\"et_pb_button et_pb_promo_button\" target=\"_blank\" href=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/12\/LS3-front-groundplate-attachement-at-ballast-thread.step.zip\" data-icon=\"\ue05f\" rel=\"noreferrer\">LS3: Befestigung der Ground Plate an der Gewindestange f\u00fcr das Bleigewicht<\/a><\/div><\/div><div class=\"et_pb_cta_6 et_pb_promo et_pb_bg_layout_dark et_pb_module et_block_module\"><div class=\"et_pb_promo_description et_multi_view_hidden\"><\/div><div class=\"et_pb_button_wrapper\"><a class=\"et_pb_button et_pb_promo_button\" target=\"_blank\" href=\"https:\/\/stefly.aero\/wp-content\/uploads\/2025\/12\/AS33-block-for-ANN-MB-00-antenna.step.zip\" data-icon=\"\ue05f\" rel=\"noreferrer\">AS33ME: Montage der hinteren GNSS Antenne im Motorkasten<\/a><\/div><\/div><\/div><\/div><\/div><div class=\"et_pb_section_17 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_19 et_pb_row et_block_row\"><div class=\"et_pb_column_36 et_pb_column et_pb_column_4_4 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_53 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p><strong>FAQ<\/strong><\/p>\n<\/div><\/div><div class=\"et_pb_accordion_1 et_pb_accordion et_pb_module et_block_module\"><div class=\"et_pb_accordion_item_0 et_pb_accordion_item et_pb_toggle et_pb_module et_pb_toggle_open et_block_module\"><h5 class=\"et_pb_toggle_title\">How can you install the dual GNSS antennas in a carbon fibre glider?<\/h5><div class=\"et_pb_toggle_content\"><p>Carbon fiber is electrically conductive and shields the GNSS signal. Some carbon fiber gliders have areas of the fuselage tube that are made of GRP (e.g. in the ASG29 above the baggage compartment) and therefore are not a problem. Some engine flaps are made of GRP and are therefore suitable as a mounting location for antennas. Alternatively, the GNSS antennas can also be installed in the front and rear areas of the canopy. We have already developed solutions or have special antennas in our program for many aircraft models. We are happy to help!<\/p>\n<\/div><\/div><div class=\"et_pb_accordion_item_1 et_pb_accordion_item et_pb_toggle et_pb_module et_pb_toggle_close et_block_module\"><h5 class=\"et_pb_toggle_title\">Are all cables and the software included in the scope of delivery?<\/h5><div class=\"et_pb_toggle_content\"><p>The scope of delivery includes all components of the system as well as mounting material and patch cables.<\/p>\n<p>The software is already installed on the LARUS and can be updated via the SD card. The firmware is available free of charge on\u00a0<a href=\"https:\/\/github.com\/larus-breeze\/sw_sensor\">https:\/\/github.com\/larus-breeze\/sw_sensor<\/a>\u00a0.<\/p>\n<\/div><\/div><div class=\"et_pb_accordion_item_2 et_pb_accordion_item et_pb_toggle et_pb_module et_pb_toggle_close et_block_module\"><h5 class=\"et_pb_toggle_title\">The sensor box can be used as an artificial horizon? Is it possible to block this feature for competitions?<\/h5><div class=\"et_pb_toggle_content\"><p>LARUS provides XCSoar AHRS data, which allows an artificial horizon to be displayed. This function can also be shown in the LARUS Vario Display.<\/p>\n<p>The artificial horizon can be deactivated for competitions. Details are described in the manual.<\/p>\n<p>Disclaimer: This artificial horizon was designed for gliding as an additional aid, in particular for setting up the installation position. LARUS is not certified and must not be used in non-VFR conditions!<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><div class=\"et_pb_section_18 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_20 et_pb_row et_block_row\"><div class=\"et_pb_column_37 et_pb_column et_pb_column_4_4 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_wc_tabs_0 et_pb_wc_tabs et_pb_tabs et_pb_module\"><div class=\"et_pb_module_inner\"><ul class=\"et_pb_tabs_controls clearfix\"><\/ul><div class=\"et_pb_all_tabs\"><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"et_pb_section_19 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_21 et_pb_row et_block_row\"><div class=\"et_pb_column_38 et_pb_column et_pb_column_4_4 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>LARUS sensor unit in aluminum housing. A separate display device such as the LARUS Vario Display, a SteFly NAV, an OpenVario or a Bluetooth-enabled device (smartphone \/ tablet) with XCSoar \/ OpenSoar is required to display the data.<\/p>\n<ul>\n<li>LARUS sensor unit in black anodized aluminum housing<\/li>\n<li>1 GNSS antenna (LARUS Essential) or 2 GNSS antennas (LARUS Dual-GNSS)<\/li>\n<li>mounting screws and nuts<\/li>\n<li>fastening clamps<\/li>\n<li>min. 32 GB micro SD card with adapter<\/li>\n<li>RJ45 cable<\/li>\n<\/ul>","protected":false},"featured_media":13243,"template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"<strong><u>Technische Daten<\/u><\/strong>\r\n<strong>Spannungseingangsbereich:<\/strong> 9 bis 28V DC (RJ45), 5 V USB-C\r\n<strong>Stromverbrauch @ 13 V DC:<\/strong>\u00a0LARUS Essential 120 mA, LARUS DUAL-GNSS 150 mA\r\n<strong>Schnittstellen: <\/strong>RS232 (x2) - RJ45 \/\u00a0CAN (x1) - RJ45 \/\u00a0Bluetooth - SMA umgekehrte Polarit\u00e4t \/\u00a0GNSS-Antenne - SMA normale Polarit\u00e4t \/\u00a0microSD\r\n<strong>Schlaucht\u00fcllendurchmesser:<\/strong>\u00a06 mm\r\n<strong>Einsatztemperatur:<\/strong> -30\u00b0C bis +60\u00b0C\r\n<strong>Abmessungen Geh\u00e4use LARUS:<\/strong> 145 mm x 79 mm x 28 mm (inkl. Antennenanschl\u00fcsse und Schlaucht\u00fcllen)\r\n<strong>Gewicht LARUS Essential:<\/strong> 300 g (inkl. GNSS-Antenne)\r\n<strong>Gewicht LARUS Dual-GNSS:<\/strong> 630 g (inkl. 2 GNSS-Antennen)\r\n<strong>Material:<\/strong> Geh\u00e4use aus schwarz eloxiertem Aluminium\r\n<strong>Kabell\u00e4nge GNSS-Antennen:<\/strong> LARUS Essential 4 m, LARUS Dual-GNSS standardm\u00e4\u00dfig 5 m","_et_gb_content_width":"","_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0},"product_brand":[],"product_cat":[385],"product_tag":[],"class_list":["post-16902","product","type-product","status-publish","has-post-thumbnail","product_cat-larus","product_shipping_class-standard-parcel","first","instock","taxable","shipping-taxable","purchasable","product-type-variable"],"_links":{"self":[{"href":"https:\/\/stefly.aero\/en\/wp-json\/wp\/v2\/product\/16902","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stefly.aero\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/stefly.aero\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/stefly.aero\/en\/wp-json\/wp\/v2\/media\/13243"}],"wp:attachment":[{"href":"https:\/\/stefly.aero\/en\/wp-json\/wp\/v2\/media?parent=16902"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/stefly.aero\/en\/wp-json\/wp\/v2\/product_brand?post=16902"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/stefly.aero\/en\/wp-json\/wp\/v2\/product_cat?post=16902"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/stefly.aero\/en\/wp-json\/wp\/v2\/product_tag?post=16902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}