1940 ? 2010: Brief history of hybrid helicopters around ... - Eurocopter
1940 ? 2010: Brief history of hybrid helicopters around ... - Eurocopter
1940 ? 2010: Brief history of hybrid helicopters around ... - Eurocopter
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But personalities such as Juan de la Cierva in Europe or Harold Pitcairn in the USA,<br />
contributed to technical progress thanks to their inventiveness.<br />
Part 4: Models Developed Throughout the World<br />
All Rights Reserved American Helicopter Society Summer 2006 vertiflite<br />
1938 FL-185: Anton Flettner, Germany<br />
• 12-meter-diameter 3-bladed rotor, driven in hover flight then operating as an<br />
autogyro in forward flight<br />
• Two propellers back to front on the end <strong>of</strong> an arm, providing anti-torque in hover<br />
flight and propulsion in forward flight<br />
• 140 hp (104 kW) Siemens-Halske 14A engine<br />
• Maximum weight: 900 kg
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