FLARM: Difference between revisions
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'''FLARM''' (short for ''FL''ight Al''arm'') is a collision avoidance instrument designed to assist in the "See-and-Avoid"-Practice used during [[VFR]] flights. Originally being designed for [[Sailplanes|gliders]], it is now often used in light aircraft, especially when often operating in areas where there is a lot of glider activity. | '''FLARM''' (short for ''FL''ight Al''arm'') is a collision avoidance instrument designed to assist in the "See-and-Avoid"-Practice used during [[VFR]] flights. Originally being designed for [[Sailplanes|gliders]], it is now often used in light aircraft, especially when often operating in areas where there is a lot of glider activity. | ||
== Working | == Working principle == | ||
A small computer predicts the future flightpath of the aircraft it is installed in based on [[GPS]] data. This predicted flightpath is then transmitted regularly using radio signals similar to the ones used | A small computer predicts the future flightpath of the aircraft it is installed in based on [[GPS]] data. This predicted flightpath is then transmitted regularly using radio signals similar to the ones used for example for garage remote controls. These signals are received by other FLARM devices (inside a range of typically 3-5 km.<ref>{{cite web | ||
| url = https://flarm.com/wp-content/uploads/man/FLARM_OperatingManual_E.pdf | |||
| title = Operating Manual, FLARM Collision Avoidance System, Version 242 | |||
| date = 18 December 2016 | |||
| publisher = FLARM Technology, Ltd | |||
| pages = 2-3 | |||
| format = pdf | |||
| accessdate = 26 July 2020 | |||
}}</ref> If a collision risk is calculated, there is a warning emitted.<ref>{{cite web | |||
| url = https://flarm.com/wp-content/uploads/man/FLARM-General-EN.pdf | |||
| title = The Affordable Collision Avoidance Technology for General Aviation and UAV | |||
| date = 16 February 2017 | |||
| publisher = FLARM Technology, Ltd | |||
| format = pdf | |||
| accessdate = 26 July 2020 | |||
}} - ''General Description''</ref> | |||
== Displays == | == Displays == | ||
Earlier FLARM devices ("Classic FLARM") had a simple 16-led vertical and horizontal display that showed a broad direction to look for the traffic. Today, FLARM devices are only core modules and can be combined with a variety of displays. FLARM signals can also be included | Earlier FLARM devices ("Classic FLARM") had a simple 16-led vertical and horizontal display that showed a broad direction to look for the traffic. Today, FLARM devices are only core modules and can be combined with a variety of displays. FLARM signals can also be included for example on soaring computers like the LX8000/9000.<ref>{{cite web | ||
| url = https://flarm.com/products/third-party-products/displays/ | |||
| title = Displays | |||
| publisher = FLARM Technology, Ltd | |||
| accessdate = 26 July 2020 | |||
}} - ''Third party FLARM displays''</ref><ref>{{cite web | |||
| url = https://flarm.com/products/third-party-products/integrated-systems/ | |||
| title = Integrated systems | |||
| publisher = FLARM Technology, Ltd | |||
| accessdate = 26 July 2020 | |||
}} - ''Manufacturers with FLARM devices integrated into a display, EFIS other avionics''</ref> | |||
== Status in FlightGear == | == Status in FlightGear == | ||
Since [[FlightGear_Newsletter_June_2020#New_Instruments_in_FGData|June 2020]], a basic FLARM simulation is available in [[FGData]]. It can be included and placed in any aircraft. See the | Since [[FlightGear_Newsletter_June_2020#New_Instruments_in_FGData|June 2020]], a basic FLARM simulation is available in [[FGData]]. It can be included and placed in any aircraft. See the {{fgdata source|path=Aircraft/Instruments-3d/glider/flarm/README.install|text=README file}} for more information. | ||
Current Status: | Current Status: | ||
| Line 15: | Line 40: | ||
** FLARM Classic, | ** FLARM Classic, | ||
** FLARMv3 display | ** FLARMv3 display | ||
** (TRX-2000 as included in the | ** (TRX-2000 as included in the {{fgaddon source|path=Aircraft/DR400-Ecoflyer|text=DR400-Ecoflyer}}) | ||
* Algorithm: very simple time-to-collision prediction based on closure rate. Improvements are very welcome, but please keep it light! {{progressbar|20}} | * Algorithm: very simple time-to-collision prediction based on closure rate. Improvements are very welcome, but please keep it light! {{progressbar|20}} | ||
* Obstacle Database and Warning: {{not done}} | * Obstacle Database and Warning: {{not done}} | ||
== Contributing == | == Contributing == | ||
Please contact | Please contact {{usr|D-ECHO}} if you wish to contribute to the FLARM implementation so that there can be a coordinated effort. | ||
== External | == References == | ||
{{Appendix}} | |||
== Related content == | |||
=== Wiki articles === | |||
* [[Transponder]] | |||
=== Source code === | |||
* {{fgdata source|path=Aircraft/Instruments-3d/glider/flarm/}} | |||
== External links == | |||
* [https://flarm.com/ FLARM Official Website] | * [https://flarm.com/ FLARM Official Website] | ||
[[Category:Aircraft enhancement]] | [[Category:Aircraft enhancement]] | ||
[[Category:Aircraft instruments]] | |||
Revision as of 12:03, 27 July 2020
FLARM (short for FLight Alarm) is a collision avoidance instrument designed to assist in the "See-and-Avoid"-Practice used during VFR flights. Originally being designed for gliders, it is now often used in light aircraft, especially when often operating in areas where there is a lot of glider activity.
Working principle
A small computer predicts the future flightpath of the aircraft it is installed in based on GPS data. This predicted flightpath is then transmitted regularly using radio signals similar to the ones used for example for garage remote controls. These signals are received by other FLARM devices (inside a range of typically 3-5 km.[1] If a collision risk is calculated, there is a warning emitted.[2]
Displays
Earlier FLARM devices ("Classic FLARM") had a simple 16-led vertical and horizontal display that showed a broad direction to look for the traffic. Today, FLARM devices are only core modules and can be combined with a variety of displays. FLARM signals can also be included for example on soaring computers like the LX8000/9000.[3][4]
Status in FlightGear
Since June 2020, a basic FLARM simulation is available in FGData. It can be included and placed in any aircraft. See the README file for more information.
Current Status:
- Available Devices:
- FLARM Classic,
- FLARMv3 display
- (TRX-2000 as included in the DR400-Ecoflyer)
- Algorithm: very simple time-to-collision prediction based on closure rate. Improvements are very welcome, but please keep it light!
- Obstacle Database and Warning:
Not done
Contributing
Please contact D-ECHO if you wish to contribute to the FLARM implementation so that there can be a coordinated effort.
References
References
|