First flight of the Florine No. 2 tandem helicopter

Wednesday, April 12, 1933

 

Description

The aircraft was the second iteration of a tandem concept developed by Florine (the first, the Type I, encountered drive system issues necessitating a re-design). The aircraft included a number of novel features including lateral canting of the rotor hubs to provide anti-torque control as both rotors rotated in the same direction.

This aircraft went on to set a flight endurance record for helicopters.

Source: "Nicolas Florine Tandem-Rotor Helicopter", Ken Bartie, VFS 2019 VTOL History Calendar

 

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