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#1
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Andy wrote:
http://www.onlinecontest.org/olc-2.0...l?dsId=1875776 I wonder how this "flight" could have got through even the most basic reasonableness check. I assume there is none. The OLC web site checks just the mathematical correctness of the G record, but afaik it does not do any plausibility checks. That would be quite error prone und unreliable, probably too annoying and not worth it. This flight however looks interesting. It was supposedly recorded with a Colibri. He has another suspicious flight: http://www.onlinecontest.org/olc-2.0...tId=1022483629 I wonder how the "pilot" managed to do this. Can this possibly be a GPS reception problem or hardware/software bug, or did he fake the G record on a made-up IGC file? Faking G records should be reasonably easy to do. When vendors keep their cryptographic specifications secret, it always smells a lot like snake oil. My rough guess is that no certified IGC logger would withstand a real cryptanalysis. Max |
#2
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On Jun 7, 6:14*am, Max Kellermann wrote:
Andy wrote: http://www.onlinecontest.org/olc-2.0....html?dsId=187.... I wonder how this "flight" could have got through even the most basic reasonableness check. *I assume there is none. The OLC web site checks just the mathematical correctness of the G record, but afaik it does not do any plausibility checks. *That would be quite error prone und unreliable, probably too annoying and not worth it. This flight however looks interesting. *It was supposedly recorded with a Colibri. *He has another suspicious flight: *http://www.onlinecontest.org/olc-2.0....html?flightId.... I wonder how the "pilot" managed to do this. *Can this possibly be a GPS reception problem or hardware/software bug, or did he fake the G record on a made-up IGC file? Faking G records should be reasonably easy to do. *When vendors keep their cryptographic specifications secret, it always smells a lot like snake oil. *My rough guess is that no certified IGC logger would withstand a real cryptanalysis. Max Max Please explain He has another suspicious flight: Michael |
#3
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mpcehand wrote:
Max Please explain He has another suspicious flight: At timestamp 20:25:11, he has a ground speed of 362 kph. This one looks very much like an unintended logger problem. |
#4
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On Jun 7, 7:53*am, Max Kellermann wrote:
mpcehand wrote: Max Please explain *He has another suspicious flight: At timestamp 20:25:11, he has a ground speed of 362 kph. *This one looks very much like an unintended logger problem. I am sure that the logger is the problem.. It is being sent to Remde for a check up. Once the flight is downloaded I am not sure how to change what is put on OLC The pilot of that flight is an honest person. It seem sad to me that someone would think that they are trying to cheat with out having all the facts. Once that label has been suggested on this forum it takes on a life of its own. The pilot that made the flight says that the altitude trace is accurate but that the map view of the flight is not and has contacted several people asking for help to fix this problem. OLC included. Respectfully, Michael |
#5
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On Jun 7, 7:09*am, mpcehand wrote:
On Jun 7, 7:53*am, Max Kellermann wrote: mpcehand wrote: Max Please explain *He has another suspicious flight: At timestamp 20:25:11, he has a ground speed of 362 kph. *This one looks very much like an unintended logger problem. I am sure that the logger is the problem.. It is being sent to Remde for a check up. Once the flight is downloaded I am not sure how to change what is put on OLC The pilot of that flight is an honest person. *It seem sad to me that someone would think that they are trying to cheat with out having all the facts. Once that label has been suggested on this forum it takes on a life of its own. The pilot that made the flight says that the altitude trace is accurate but that the map view of the flight is not and has contacted several people asking for help to fix this problem. OLC included. Respectfully, Michael was he in the area affected by lightsquared testing during these flights? |
#6
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mpcehand wrote:
It seem sad to me that someone would think that they are trying to cheat with out having all the facts. Playing thought police? (Note: I did not accuse the pilot of anything) |
#7
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On Jun 7, 10:47*pm, Max Kellermann wrote:
mpcehand wrote: It seem sad to me that someone would think that they are trying to cheat with out having all the facts. Playing thought police? *(Note: I did not accuse the pilot of anything) OK peace on earth and in the Sky..... As a TuSC club pilot I will have a class and or demonstrate to those who ask for help on how to edit an OLC for "strange" flight results. Andy, thanks for spotting this, Michael we love you and thanks to all for participating in this incredible sport. OLC is usually helpful when and where they can. I am sure they will accept any and all donations to support them. Personally I love viewing flights from around the world, as well as my friends and competitors. Ron |
#8
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On Jun 8, 11:33*am, Ron wrote:
On Jun 7, 10:47*pm, Max Kellermann wrote: mpcehand wrote: It seem sad to me that someone would think that they are trying to cheat with out having all the facts. Playing thought police? *(Note: I did not accuse the pilot of anything) OK peace on earth and in the Sky..... *As a TuSC club pilot I will have a class and or demonstrate to those who ask for help on *how to edit an OLC for "strange" flight results. Andy, thanks for spotting this, Michael we love you and thanks to all for participating in this incredible sport. OLC is usually helpful when and where they can. *I am sure they will accept any and all donations to support them. Personally I love viewing flights from around the world, as well as my friends and competitors. Ron Ron, Thank you for your help. I have contacted the pilot that did the flight and requested he delete the flight. Respectfully, Michael |
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