The Akaflieg Berlin B 9 was a twin-engined^[1] experimental aircraft, developed by Akaflieg Berlin and Flugtechnische Fachgruppe in the 1940s. It was designed to examine the benefits of having a pilot in a prone position. The aircraft was flown in 1943, but was eventually abandoned.

Data from FFG-Berlin B9^{[citation needed]}

General characteristics

• Crew: One
• Length: 6.06 m (19 ft 11 in)
• Wingspan: 9.4 m (30 ft 10 in)
• Height: 2.32 m (7 ft 7 in)
• Wing area: 11.9 m² (128 sq ft)
• Empty weight: 940 kg (2,072 lb)
• Gross weight: 1,115 kg (2,458 lb)
• Fuel capacity: 95L
• Powerplant: 2 × Hirth HM 500 4-cylinder air-cooled inverted in-line piston engine, 77 kW (103 hp)105PS each

Performance

• Maximum speed: 250 km/h (160 mph, 130 kn)
• Service ceiling: 4,000 m (13,000 ft)

Aircraft of comparable role, configuration, and era

• Gloster Meteor F8 "Prone Pilot"
• Henschel Hs 132
• Ikarus 451
• Reid and Sigrist R.S.3

Related lists

• List of aircraft of World War II

• "Berlin B9 Experimental Aircraft". Retrieved December 4, 2011.