Chicago Aeronuts Bulletin Vol. IV No. 1 (Sept. 1939)

Chicago Aeronuts Bulletin Vol. IV No. 1 (Sept. 1939)

Contains an article on rubber motors, “MATH FOR DURATION OF MODELS”, by Raoul J. Hoffman.

About wil

I am a grandson of Chicago Aeronut Otto Curth. I lived in Rockford when I was young, but moved to Southern California in 1985. It didn't quite kill the opportunity to model with my grandfather, but it certainly hampered it. Since I wasn't (and probably won't ever be) able to join the club, I decided to at least set up this site to help preserve and share the history for anyone who may have an interest.
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