I got my private pilot license training in N3DP back in 1979 when the airplane was based out of HIGHLAND AIRPORT, HIGHLAND, INDIANA which was a small country airport just southeast of Danville, Illinois. Dorothy Richardson was my flight instructor. This small airport offered flight training and some maintenance work.
I remember there was a guy there that had a clipped wing Piper Cub.
I understand that N3DP was destroyed in a accident some years ago.
I will attach a photo of this airplane if I can find my photos ............
Mark Casillas, Memphis,Tennessee
FedEx Airbus Captain