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Thread Tools | Display Modes |
#11
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soaring video with Flarm in use
The way Flarm works is also dependent on its installation, which as far as I can see particularly involves the location of the tiny aerial which gives Flarm to Flarm communication. My unit is on top of the instrument coaming. This shields it from transmissions from below, so an approaching glider at a lower level may be detected some distance away, and then it becomes invisible to the Flarm unit as it gets close and underneath. I have also found that on some occasions, a glider has to be really near before the unit detects it. I don't know why, but it seems to be somewhat variable. Nevertheless, I find it very valuable, and these elements of variability do not make it worthwhile to me to try to develop a different location for a remote aerial, which in any case would need a lead that I don't have, although I believe one is available if required. Chris N |
#12
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soaring video with Flarm in use
It looks like the pilot has put his FLARM in stealth mode. In this mode
only situations in which an impact is expected within the next 18 seconds are annunciated as proximity warnings (alerts). The stealth mode is used by some pilots to make their position data and lift and sink information unavailable to other pilots, if this information is not necessary for proximity warning. The display used in this gilder annunciates proximity warnings (alerts) in red, mere proximity information would be displayed in green. Am 17.09.2010 21:51, schrieb db_sonic: On Sep 16, 10:44 am, wrote: http://www.youtube.com/watch?v=UWRX1...ayer_embedded#! the guy shooting the video has a Flarm on top of his panel, in some of the scenes you can see the display lighting up and see the target sailplanes. I thought this was pretty cool to see Flarm in action. Brad Is it just me? I am surprised the Flarm doesnt light up more. Its like the pilot looks right and sees the other glider before the Flarm lights up. And that other guy is close! |
#13
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soaring video with Flarm in use
Green??
I dont think so, the only green leds on flarms are those blinking for gps transmission, power etc. All informations are red, either fixed or blinking. I dont think they were in "stealth" mode, it is tricky to use it and - then - your PDA won't receive traffic informations. Moreover, stealth mode is bypassable using an alternative "compatible" device, on the market, so it is not a choice. "hans" ha scritto nel messaggio ... It looks like the pilot has put his FLARM in stealth mode. In this mode only situations in which an impact is expected within the next 18 seconds are annunciated as proximity warnings (alerts). The stealth mode is used by some pilots to make their position data and lift and sink information unavailable to other pilots, if this information is not necessary for proximity warning. The display used in this gilder annunciates proximity warnings (alerts) in red, mere proximity information would be displayed in green. Am 17.09.2010 21:51, schrieb db_sonic: On Sep 16, 10:44 am, wrote: http://www.youtube.com/watch?v=UWRX1...ayer_embedded#! the guy shooting the video has a Flarm on top of his panel, in some of the scenes you can see the display lighting up and see the target sailplanes. I thought this was pretty cool to see Flarm in action. Brad Is it just me? I am surprised the Flarm doesnt light up more. Its like the pilot looks right and sees the other glider before the Flarm lights up. And that other guy is close! |
#14
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soaring video with Flarm in use
On Sep 17, 2:25*pm, Chris Nicholas wrote:
The way Flarm works is also dependent on its installation, which as far as I can see particularly involves the location of the tiny aerial which gives Flarm to Flarm communication. My unit is on top of the instrument coaming. This shields it from transmissions from below, so an approaching glider at a lower level may be detected some distance away, and then it becomes invisible to the Flarm unit as it gets close and underneath. I have also found that on some occasions, a glider has to be really near before the unit detects it. I don't know why, but it seems to be somewhat variable. Nevertheless, I find it very valuable, and these elements of variability do not make it worthwhile to me to try to develop a different location for a remote aerial, which in any case would need a lead that I don't have, although I believe one is available if required. Chris N now I'm worried...............I have a carbon fiber airframe. Brad |
#15
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soaring video with Flarm in use
now I'm worried...............I have a carbon fiber airframe. Brad- Hide quoted text - - Show quoted text - So do I, and I think the coaming is also carbon fibre. Regarding colours, I have the simplest Flarm, and it does have green lights for contacts that are not a threat. It only shows red when a contact turns into a threat. Chris N |
#16
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soaring video with Flarm in use
Green is proximity red alarm.Stealth is compulsory in rated comps to reduce
leeching.There has been a lot of discusion in the uk about degrading the signal for comps,but there seems little choice because you can see everyone elses speed and rate of climb on the pda if they are not in stealth mode. At 21:26 17 September 2010, PCool wrote: Green?? I dont think so, the only green leds on flarms are those blinking for gps transmission, power etc. All informations are red, either fixed or blinking. I dont think they were in "stealth" mode, it is tricky to use it and - then - your PDA won't receive traffic informations. Moreover, stealth mode is bypassable using an alternative "compatible" device, on the market, so it is not a choice. "hans" ha scritto nel messaggio ... It looks like the pilot has put his FLARM in stealth mode. In this mode only situations in which an impact is expected within the next 18 seconds are annunciated as proximity warnings (alerts). The stealth mode is used by some pilots to make their position data and lift and sink information unavailable to other pilots, if this information is not necessary for proximity warning. The display used in this gilder annunciates proximity warnings (alerts) in red, mere proximity information would be displayed in green. Am 17.09.2010 21:51, schrieb db_sonic: On Sep 16, 10:44 am, Brad wrote: http://www.youtube.com/watch?v=UWRX1...ayer_embedded#! the guy shooting the video has a Flarm on top of his panel, in some of the scenes you can see the display lighting up and see the target sailplanes. I thought this was pretty cool to see Flarm in action. Brad Is it just me? I am surprised the Flarm doesnt light up more. Its like the pilot looks right and sees the other glider before the Flarm lights up. And that other guy is close! |
#17
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soaring video with Flarm in use
On 9/17/2010 2:38 PM, Brad wrote:
On Sep 17, 2:25 pm, Chris wrote: Nevertheless, I find it very valuable, and these elements of variability do not make it worthwhile to me to try to develop a different location for a remote aerial, which in any case would need a lead that I don't have, although I believe one is available if required. Chris N now I'm worried...............I have a carbon fiber airframe. You should be fine - PowerFlarm has higher power output than Flarm, and you can add a second Flarm antenna. -- Eric Greenwell - Washington State, USA (netto to net to email me) - "Transponders in Sailplanes - Feb/2010" also ADS-B, PCAS, Flarm http://tinyurl.com/yb3xywl - "A Guide to Self-launching Sailplane Operation Mar/2004" Much of what you need to know tinyurl.com/yfs7tnz |
#18
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soaring video with Flarm in use
On Fri, 17 Sep 2010 21:22:23 GMT, "PCool"
wrote: Actually the FLARM should light up stable (no blinking, and no sound) for such a case. It's a question of the setting. This Flarm is set to "warnings only" where it only lightens up in case of a possible collision. What you mean is the "proximity mode" where the Flarm always shows the direction to the closest target. Regards Andreas |
#19
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soaring video with Flarm in use
Hi,
To me the stealth and competition modes are a bad idea. They reduce the effectiveness of the alerts. As a sometimes contest manager, I would never mandate anything that would reduce safety. Paul Remde "Jonathon May" wrote in message ... Green is proximity red alarm.Stealth is compulsory in rated comps to reduce leeching.There has been a lot of discusion in the uk about degrading the signal for comps,but there seems little choice because you can see everyone elses speed and rate of climb on the pda if they are not in stealth mode. At 21:26 17 September 2010, PCool wrote: Green?? I dont think so, the only green leds on flarms are those blinking for gps transmission, power etc. All informations are red, either fixed or blinking. I dont think they were in "stealth" mode, it is tricky to use it and - then - your PDA won't receive traffic informations. Moreover, stealth mode is bypassable using an alternative "compatible" device, on the market, so it is not a choice. "hans" ha scritto nel messaggio ... It looks like the pilot has put his FLARM in stealth mode. In this mode only situations in which an impact is expected within the next 18 seconds are annunciated as proximity warnings (alerts). The stealth mode is used by some pilots to make their position data and lift and sink information unavailable to other pilots, if this information is not necessary for proximity warning. The display used in this gilder annunciates proximity warnings (alerts) in red, mere proximity information would be displayed in green. Am 17.09.2010 21:51, schrieb db_sonic: On Sep 16, 10:44 am, Brad wrote: http://www.youtube.com/watch?v=UWRX1...ayer_embedded#! the guy shooting the video has a Flarm on top of his panel, in some of the scenes you can see the display lighting up and see the target sailplanes. I thought this was pretty cool to see Flarm in action. Brad Is it just me? I am surprised the Flarm doesnt light up more. Its like the pilot looks right and sees the other glider before the Flarm lights up. And that other guy is close! |
#20
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soaring video with Flarm in use
Competition mode might be considered to slightly reduce safety but
stealth mode (which is the mode mandated at UK contests this year) should not diminish the collision warning functionality. I think that the naming of the two modes could be improved. There is a good explanation of them he http://www.flarm.com/support/Flarm_Competitions.pdf BTW - the early LX Red Box Flarm remote displays had only red LEDs but all 2006 onwards Swiss Flarm and later LX displays have the two colours. I presume that the glider in the video had an early Red Box and I think that all the Flarm display lights in the video are proximity alerts rather than collision warnings - which is why the direction sometimes switches as a different glider in the group becomes he closest one. It is good to see a positive attitude to Flarm use emerging in the US. For those who feel that there is no point in having one unless every glider does "it ain't necessarily so". The gliders that we are most likely to collide with are the ones that we would least like to take out our: friends who we fly XC with, other competitors in a contest and training gliders doing multiple circuits at the home field. Concentrating on organizing clusters of Flarms in the gliders that are relevant to one's own circumstances can improve personal risks (of death or regret) quite considerably more than is apparent from the overall proportion of gliders with the device. Peer pressure works quite well to encourage such clusters and helps them to spread out. John Galloway On 18 Sep, 03:41, "Paul Remde" wrote: Hi, To me the stealth and competition modes are a bad idea. *They reduce the effectiveness of the alerts. As a sometimes contest manager, I would never mandate anything that would reduce safety. Paul Remde "Jonathon May" wrote in message ... Green is proximity red alarm.Stealth is compulsory in rated comps to reduce leeching.There has been a lot of discusion in the uk about degrading the signal for comps,but there seems little choice because you can see everyone elses speed and rate of climb on the pda if they are not in stealth mode. At 21:26 17 September 2010, PCool wrote: Green?? I dont think so, the only green leds on flarms are those blinking for gps transmission, power etc. All informations are red, either fixed or blinking. I dont think they were in "stealth" mode, it is tricky to use it and - then - your PDA won't receive traffic informations. Moreover, stealth mode is bypassable using an alternative "compatible" device, on the market, so it is not a choice. "hans" *ha scritto nel messaggio ... It looks like the pilot has put his FLARM in stealth mode. In this mode only situations in which an impact is expected within the next 18 seconds are annunciated as proximity warnings (alerts). The stealth mode is used by some pilots to make their position data and lift and sink information unavailable to other pilots, if this information is not necessary for proximity warning. The display used in this gilder annunciates proximity warnings (alerts) in red, mere proximity information would be displayed in green. Am 17.09.2010 21:51, schrieb db_sonic: On Sep 16, 10:44 am, Brad *wrote: http://www.youtube.com/watch?v=UWRX1...ayer_embedded#! the guy shooting the video has a Flarm on top of his panel, in some of the scenes you can see the display lighting up and see the target sailplanes. I thought this was pretty cool to see Flarm in action. Brad Is it just me? I am surprised the Flarm doesnt light up more. Its like the pilot looks right and sees the other glider before the Flarm lights up. And that other guy is close! |
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