Hii, for those into aircraft, heres some nice sound of a nine cylinder radial Vedeneyev M14P pulling a SU26 flown by one of the best aerobatic pilots. She has lots of youtube clips if you like to see more. (I play with large scale rc and have an SU26 with a 75cc four stroke radial). Hope you enjoy Mark
https://www.youtube.com/watch?v=Be-JGNhkrS0
Can anyone translate the discussion after landing. Mark