1937 04 18 - 8882 - Washington DC - NASM - Pedaliante by thisisbossi
The propeller-equipped bicycle used to develop the Pedaliante, a human powered aircraft piloted by a "very strong cyclist".
"A second experiment conducted during a trip to Paris involved a propeller-driven bicycle designed by Bossi. The test rider achieved a speed of 37 km/h (23 mph), but one drawback was noted: the gyroscopic effect of the propeller generated so much torque that the bicycle became unstable. Bossi concluded, erroneously, that a successful human-powered aircraft would therefore require two counter-rotating propellers to cancel out the effects of torque – similar to the design of a helicopter. In light of these findings, Bossi decided to design an aircraft incorporating this difficult requirement."