It was freezing this morning and I forgot my gloves home, so I made a short flight
arwwww, it's like that every winter here, we olny fly with gloves when we're out sloping

so are you able to prove the doppler is accurate using your onboard system? allowing for wind of course...
for me the problem with the doppler is getting the right recording. i dont think it's goo enough to recorde a plane flying past you 20 feet away, my meathod of putting the mic out and getting LOW passes over it is the best i've found so far, but it's not perfect.