cannot reproduce Propeller pitch changes causes aircraft to move on ground.

[Arink429]

Aircraft moves forward and aft when varying propeller pitch on ground with parking brake set.

[NineLine]

Sorry, I cant reproduce this one.

[grafspee]

It moves back and forth because you change thrust. When you run up engine to 2300 rpm then drop rpm down, you reduce thrust so plane will back off a little bit, then when you increase rpm plane will move forward a little bit. It is landing gear which bend a little bit when thrust is applied.

[Mogster]

Incredible detail.