Musculair

Musculair
	Musculair II at the Deutsches Museum Flugwerft Schleissheim, Munich, Germany
Role	Human-powered aircraft
Number built	2

Musculair 1 and Musculair 2 are two human-powered aircraft designed and built by German academic and engineer Günther Rochelt.

Musculair 1 edit

Rochelt designed Musculair 1 and completed building it in 1984. His son, Holger, won a Kremer prize in the same year for his flight over a 1,500 m (4,900 ft) triangular course, improving the record to 4 minutes and 25 seconds. In the same year, he set a world speed record at 35.7 km/h (22.2 mph), receiving a second Kremer prize. Later that year, Holger and his sister Katrin, at that time still a child, became the first passengers in a human-powered aircraft.^{[citation needed]}

Drawing of Musculair 1, build by Gunther Rochelt in 1984

Length: 7.20 m
Wingspan: 22.00 m
Wing area: 16.50 m²
Glide ratio: 1:38
Height: 2.20 m
Mass of the aircraft: 28 kg
Propeller diameter: 2.72 m
Required minimum power: 200 watts
Required performance (11m / s^[clarify]): 280 watts

Musculair 2 edit

Günther designed Musculair 2, and Holger slimmed down to just 41 kilograms (90 lb) to reduce the total mass of craft and human, leading to him setting a new Fédération Aéronautique Internationale world record for a human-powered aircraft at 44.32 kilometres per hour (27.54 mph) on 2 October 1985.^[1] The record, which still stands as of 2023, was set over a circuit at the Sonderlandeplatz Oberschleißheim airfield, near Munich.^[1]