Originally posted by moved on
1st:
About the speed claims. I'm definately not the bright kid on the block but, if the GPS reads the highest speed, then couldn't it be possible that it's reading the acceleration from 0Mph to whatever the speed is the next time it gets a position fix? This means to me that it's reading acceleration as velocity, which could possibly give a false reading. Maybe there's a math genius among you who knows how to calculate:
Time interval between fixes
Speed of aircraft at 2nd position fix
(Somehow) calculate acceleration into velocity. (And yes, this figure will change with different engines depending on different engine weight, how far the elastic is stretched back etc.)
Time interval between fixes. That is how it works.
Delta X (position) /Delta time = Velocity. That is the very definition of velocity. THis is how GPS works. This cannot be confused with acceleration
THis idea that it is somehow measure accelerate of the launch is not right.
BTW I am a club officer and i understand you completely :-(