American Ingenuity
This Week’s Hints to help you along: Two cylinders and 150 hp. No combustion required in the cylinders! Can rotate the prop either direction — reversing thrust! Based on, well,
HistoricWings.com :: A Magazine for Aviators, Pilots and Adventurers
A Magazine for Aviators, Adventurers and Pilots
This Week’s Hints to help you along: Two cylinders and 150 hp. No combustion required in the cylinders! Can rotate the prop either direction — reversing thrust! Based on, well,