At one time I thought of buying a share in a Pietenpol air camper
Aaaah, Bernard Pietenpol's ultimate minimalist genius
Having limited skill, I made an R/C version 'cos of the simplicity. Modelling the Model T engine was the most difficult part. Flew like a dream and became a 'toffee bomber' for demos. Intended to make a 1/4 scale (natural 1/4" timber frames) version but ... life interfered.