Musculair
# Musculair

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

## Musculair 1

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.

* Length: 7.20 m
* Wingspan: 22.00 m
* Wing area: 16.50 $m^2$
* 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): 280 watts

## Musculair 2

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. The record, which still stands as of 2023, was set over a circuit at the Sonderlandeplatz Oberschleißheim airfield, near Munich.

* Length: 6.00 m
* Wingspan: 19.50 m
* Wing area: 11.70 m2
* Glide ratio: 1:37
* Height: 1.50 m
* Mass of the plane: 25 kg
* Propeller diameter: 2.68 m

## Aircraft on display

Today, Musculair I is on display at the main Deutsches Museum, Munich. Musculair 2 is on display at the specialist Deutsches Museum Flugwerft Schleissheim in Oberschleißheim.

