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Thread Tools | Display Modes |
#1
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FLARM abuse in competitions
To prevent abuse of the received data in competitions (which is an IGC
requirement) FLARM has since 2004 included a "Privacy" mode where not all the received information is forwarded to the serial dataport and therefore is never available to external, graphical displays or PDA's. The *internal* threat calculations always use the full dataset. For the mandatory 2008 update, "Privacy" mode is further refined with the following goals: - Discourage temporary turning off of FLARM during competitions - Discourage use of "Privacy" mode outside competitions Modification for the mandatory, scheduled 2008 update: The guiding principle is that the pilot will not receive more information than what is visually available anyway. 1) Rename to "Stealth mode" as this better describes the purpose and operation. Heavily promote its non-usage and explain it to key users. 2) The status and any changes of the "Stealth mode" is recorded in the IGC file as an L-record (LFLA STEALTH [ON / OFF]) and is therefore protected by the G-record. Consequently a competition authority can easily enforce the use (or non use) if desired. 3) Changes to "Stealth mode" during flight are delayed by five minutes. 4) Full reciprocity: A pilot that enables "Stealth mode" will get the information as if all other aircraft had enabled "Stealth mode", independent of their actual setting. 5) If FLARM is power cycled during flight, other aircraft are treated as if in "Stealth mode" for the first five minutes, independent of their actual setting. 6) Targets with enabled "Stealth Mode" are only displayed in NEAREST and are available on the Dataport as a PFLAA message if they meet at least ONE of the following requirements: - Target is a threat - Target is within 100m horizontal / 50m vertical - Target is within 1000m horizontal / 200m vertical and within +-45° of own flight direction 7) If a PFLAA message is issued according to the rules above, all fields in Italic are empty: PFLAA,AlarmLevel,RelativeNorth,RelativeEast, RelativeVertical,IDType,ID,Track, TurnRate,GroundSpeed,ClimbRate,AcftType 8) RelativeVertical degraded with (distance / 50) white noise when other aircraft is not a threat. Please comment. THE FINAL V4.0 VERSION MAY BEHAVE DIFFERENTLY (based on your comments). CHECK RELEASE NOTES AND MANUAL! Urs - FLARM |
#2
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FLARM abuse in competitions
Hi Urs,
I am looking forward to meeting you next week. The new features makes sense to me and are very impressive. Keep up the good work. Paul Remde wrote in message ... To prevent abuse of the received data in competitions (which is an IGC requirement) FLARM has since 2004 included a "Privacy" mode where not all the received information is forwarded to the serial dataport and therefore is never available to external, graphical displays or PDA's. The *internal* threat calculations always use the full dataset. For the mandatory 2008 update, "Privacy" mode is further refined with the following goals: - Discourage temporary turning off of FLARM during competitions - Discourage use of "Privacy" mode outside competitions Modification for the mandatory, scheduled 2008 update: The guiding principle is that the pilot will not receive more information than what is visually available anyway. 1) Rename to "Stealth mode" as this better describes the purpose and operation. Heavily promote its non-usage and explain it to key users. 2) The status and any changes of the "Stealth mode" is recorded in the IGC file as an L-record (LFLA STEALTH [ON / OFF]) and is therefore protected by the G-record. Consequently a competition authority can easily enforce the use (or non use) if desired. 3) Changes to "Stealth mode" during flight are delayed by five minutes. 4) Full reciprocity: A pilot that enables "Stealth mode" will get the information as if all other aircraft had enabled "Stealth mode", independent of their actual setting. 5) If FLARM is power cycled during flight, other aircraft are treated as if in "Stealth mode" for the first five minutes, independent of their actual setting. 6) Targets with enabled "Stealth Mode" are only displayed in NEAREST and are available on the Dataport as a PFLAA message if they meet at least ONE of the following requirements: - Target is a threat - Target is within 100m horizontal / 50m vertical - Target is within 1000m horizontal / 200m vertical and within +-45° of own flight direction 7) If a PFLAA message is issued according to the rules above, all fields in Italic are empty: PFLAA,AlarmLevel,RelativeNorth,RelativeEast, RelativeVertical,IDType,ID,Track, TurnRate,GroundSpeed,ClimbRate,AcftType 8) RelativeVertical degraded with (distance / 50) white noise when other aircraft is not a threat. Please comment. THE FINAL V4.0 VERSION MAY BEHAVE DIFFERENTLY (based on your comments). CHECK RELEASE NOTES AND MANUAL! Urs - FLARM |
#3
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FLARM abuse in competitions
Urs,
as a non - competition pilot I don´t want to be in stealth mode for five minutes when power is cycled. I never ever want to be in stealth mode! From personal experience, if a group of pilots flying a competition approach me, I would like to know as early as possible to be able to stay clear of them. May I suggest to completely drop the "stealth mode" concept and only limit information available on the serial port, when a "competition" mode ist selected. You could record the status of the "competition" flag in the IGC file, and whoever deselects it during competition could be penalized. I understand one could cheat by installing a secret second FLARM unit in the glider, but for the majority of FLARM users there would be an advantage IMHO. Michael schrieb im Newsbeitrag ... To prevent abuse of the received data in competitions (which is an IGC requirement) FLARM has since 2004 included a "Privacy" mode where not all the received information is forwarded to the serial dataport and therefore is never available to external, graphical displays or PDA's. The *internal* threat calculations always use the full dataset. For the mandatory 2008 update, "Privacy" mode is further refined with the following goals: - Discourage temporary turning off of FLARM during competitions - Discourage use of "Privacy" mode outside competitions Modification for the mandatory, scheduled 2008 update: The guiding principle is that the pilot will not receive more information than what is visually available anyway. 1) Rename to "Stealth mode" as this better describes the purpose and operation. Heavily promote its non-usage and explain it to key users. 2) The status and any changes of the "Stealth mode" is recorded in the IGC file as an L-record (LFLA STEALTH [ON / OFF]) and is therefore protected by the G-record. Consequently a competition authority can easily enforce the use (or non use) if desired. 3) Changes to "Stealth mode" during flight are delayed by five minutes. 4) Full reciprocity: A pilot that enables "Stealth mode" will get the information as if all other aircraft had enabled "Stealth mode", independent of their actual setting. 5) If FLARM is power cycled during flight, other aircraft are treated as if in "Stealth mode" for the first five minutes, independent of their actual setting. 6) Targets with enabled "Stealth Mode" are only displayed in NEAREST and are available on the Dataport as a PFLAA message if they meet at least ONE of the following requirements: - Target is a threat - Target is within 100m horizontal / 50m vertical - Target is within 1000m horizontal / 200m vertical and within +-45° of own flight direction 7) If a PFLAA message is issued according to the rules above, all fields in Italic are empty: PFLAA,AlarmLevel,RelativeNorth,RelativeEast, RelativeVertical,IDType,ID,Track, TurnRate,GroundSpeed,ClimbRate,AcftType 8) RelativeVertical degraded with (distance / 50) white noise when other aircraft is not a threat. Please comment. THE FINAL V4.0 VERSION MAY BEHAVE DIFFERENTLY (based on your comments). CHECK RELEASE NOTES AND MANUAL! Urs - FLARM |
#4
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FLARM abuse in competitions
5) If FLARM is power cycled during flight, other aircraft are treated as if in "Stealth mode" for the first five minutes, independent of their actual setting. Hi Urs! please do it only, if the disruption of power is longer than the time to switch batteries. Best Regards Hans |
#5
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GLIDING INTERNATIONAL
Pardon the commercial folks, but we want to communicate with hundreds of new subscribers to Gliding International and advise them that issue two goes to press next week. Unfortunately we failed to advise them all that they can have free classified advertising as a member subscriber. Just email us through our web page https://www.glidinginternational.com/ This coming issue has a wealth of new news: 1. New battery patents that will give sailplane batteries 20 times their existing storage. 2. New electric powered side by side two seater completes it test program. 3. The World membership report for 2007 will be completed in time for publication. 4. Complete run down on the World Final of the Grand Prix at Omarama, New Zealand 5. Gliding in Chile - and a report on probably the wealthiest club in the world. 6. The history of the ³Check List² Plus 52 other stories from all corners of the globe. JOHN ROAKE |
#6
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GLIDING INTERNATIONAL
Hi,
I received the first issue and was very impressed. In fact, I liked it so much that I purchased full page, full color ads in it for a year. I will be selling subscriptions at the SSA Convention for $52. Good Soaring, Paul Remde Cumulus Soaring, Inc. http://www.cumulus-soaring.com "john" wrote in message ... Pardon the commercial folks, but we want to communicate with hundreds of new subscribers to Gliding International and advise them that issue two goes to press next week. Unfortunately we failed to advise them all that they can have free classified advertising as a member subscriber. Just email us through our web page https://www.glidinginternational.com/ This coming issue has a wealth of new news: 1. New battery patents that will give sailplane batteries 20 times their existing storage. 2. New electric powered side by side two seater completes it test program. 3. The World membership report for 2007 will be completed in time for publication. 4. Complete run down on the World Final of the Grand Prix at Omarama, New Zealand 5. Gliding in Chile - and a report on probably the wealthiest club in the world. 6. The history of the ³Check List² Plus 52 other stories from all corners of the globe. JOHN ROAKE |
#7
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GLIDING INTERNATIONAL
On 9 Feb, 05:53, "Paul Remde" wrote:
I received the first issue and was very impressed. In fact, I liked it so much that I purchased full page, full color ads in it for a year. Hmm. I've seen a couple of new gliding magazines come ... and go. Always with a good first issue (all the stuff the editor has been thinking of for years) and even with a few reasonable ones after that. Then the ideas flag and it's back to "Derek Piggott Takes A Fresh Look At Winch Launching" and you know it's only a matter of time. That said, I used to get "Gliding Kiwi" passed on to me, and it was far, far better than S&G, so John Roake has good form in the field. Perhaps this one will buck the trend ... Ian |
#8
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FLARM abuse in competitions
Why would you ever need to re-cycle it during flight?
It could re-cycle while switching batteries. I might want to shut down all avionics for a few seconds while pressing the starter button of the engine to avoid spikes on the avionic power bus. Also, as I understand it, Stealth mode is only applied to the data port, FLARM warning from the FLARM unit are not impaired. Imagine a gaggle of competition pilots approaching your position. Based on experience I want to stay clear of them, when the warning comes up, it´s too late already. What´s the problem, if the only difference between "stealth" and "normal" operation is the output of the data port? During a competition "stealth" has to be seleced by the competitors, and the setting is recorded in the IGC file. The contest director can check the required setting after flight, and all competition traffic is visible to non competing pilots as soon as possible. Michael |
#9
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FLARM abuse in competitions
I would actually like to see a 3rd mode here (on as default) to
suppress the altitude of all aircraft not in conflict from being sent down the serial dataport. The rational is quite simple in that it will kill the new trend to displaying climb rates which has absolutely nothing to do with colission avoidence and will only ecourage eyes to be pulled into the cockpit which is surely counter to the raison d'etre of FLARM. One of the primary skills (and possibly the most important) in our sport is the location and centering of the strongest available thermals. The new displays will errode the advantage that the more skillfull pilots have over the average joes and that is wrong. Yes I know we have already adopted a lot of other technology in the cockpit but most of that has been out of necessity or evolution of existing technology. For example it is now almost impossibel to fly in south england withpout a moving map display due to the complexity of the airspace (some of the coridors being on 5-10k wide and the large no of parachute drop zones matz etc. That aside none of these aids leach off other pilots in the way that the new climb rate displays do . Thus my plea for you to stop providing the information that these devices depend on to show this information. Another alternative would be to blank the altitude of anything 1k and not in conflict although that does nothing to stop people looking at these displays in the same thermal to compare climb rates and thus not looking out the window. If you created a 3rd mode that had to be actively turned on by pilots to share their climb rates then I wonder how many pilots would choose to turn it on... I know this will be contentious but I truly feel that this is a step too far even if it is affordable due to the skill errosion of one of the most fundamental aspects of our sport. This apart from the fact that pilots eyes will be ecouraged into the cockpit potentially while in close proximity to other gliders. rgds Stephen On Feb 8, 3:15 am, " wrote: To prevent abuse of the received data in competitions (which is an IGC requirement) FLARM has since 2004 included a "Privacy" mode where not all the received information is forwarded to the serial dataport and therefore is never available to external, graphical displays or PDA's. The *internal* threat calculations always use the full dataset. For the mandatory 2008 update, "Privacy" mode is further refined with the following goals: - Discourage temporary turning off of FLARM during competitions - Discourage use of "Privacy" mode outside competitions Modification for the mandatory, scheduled 2008 update: The guiding principle is that the pilot will not receive more information than what is visually available anyway. 1) Rename to "Stealth mode" as this better describes the purpose and operation. Heavily promote its non-usage and explain it to key users. 2) The status and any changes of the "Stealth mode" is recorded in the IGC file as an L-record (LFLA STEALTH [ON / OFF]) and is therefore protected by the G-record. Consequently a competition authority can easily enforce the use (or non use) if desired. 3) Changes to "Stealth mode" during flight are delayed by five minutes. 4) Full reciprocity: A pilot that enables "Stealth mode" will get the information as if all other aircraft had enabled "Stealth mode", independent of their actual setting. 5) If FLARM is power cycled during flight, other aircraft are treated as if in "Stealth mode" for the first five minutes, independent of their actual setting. 6) Targets with enabled "Stealth Mode" are only displayed in NEAREST and are available on the Dataport as a PFLAA message if they meet at least ONE of the following requirements: - Target is a threat - Target is within 100m horizontal / 50m vertical - Target is within 1000m horizontal / 200m vertical and within +-45° of own flight direction 7) If a PFLAA message is issued according to the rules above, all fields in Italic are empty: PFLAA,AlarmLevel,RelativeNorth,RelativeEast, RelativeVertical,IDType,ID,Track, TurnRate,GroundSpeed,ClimbRate,AcftType 8) RelativeVertical degraded with (distance / 50) white noise when other aircraft is not a threat. Please comment. THE FINAL V4.0 VERSION MAY BEHAVE DIFFERENTLY (based on your comments). CHECK RELEASE NOTES AND MANUAL! Urs - FLARM |
#10
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FLARM abuse in competitions
On Feb 10, 4:01*pm, stevehaley wrote:
I would actually like to see a 3rd mode here (on as default) to suppress the altitude of all aircraft not in conflict from being sent down the serial dataport. See item # 8: 8) RelativeVertical degraded with (distance / 50) white noise when other aircraft is not a threat. Therefore a glider in 1 km distance (with enabled Stealth mode) will have a 20m altitude error added (changing randomly every second). This should make climb rate displays less usefull than looking outside and judging the other glider's climb rate conventionally. Thus my plea for you to stop providing the information that these devices depend on to show this information. *Another alternative would be to blank the altitude of anything 1k This has been taken care of, as no information about (non conflicting, stealth mode) aircraft 1 km away is provided at all. See item #6 Urs - FLARM |
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