If you want to use my graphic outside Wikipedia, and its resolution or license doesn't satisfy you, write to me: 100px (Photo credit: Wikipedia ) The radian glider took a real beating at the last crash. Although it had a 'soft' landing eventually, going through the trees was not pleasant the foamy airframe . since it wasn't covered, indentations can be seen all over the aircraft.

The Dx4e transmitter (currently that's what I'm using) creates alot of noise when used with arduino. It's quite clear that the receiver has a tuned low pass filter that needed to be emulated for the code. A low pass filter was implemented with a stategy of using a the gradient of 3 values to determine whether allow input to the servo signal stream or not. Here's the pseudo code below: