Hamburger Flugzeugbau HFB 209
The Hamburger Flugzeugbau 209 was a postwar design project for a twin-turboprop medium-range transport.
It was cancelled when the German government decided to fund only international collaborations.
In 1958 HFB proposed to the German Government two new transports, the HFB 219 turboprop and the HFB 314 short-range jet transport. But government finance was not made available and HFB could not progress without it.
The HFB 209 was a conventional low-wing monoplane intended as a 48-54 seat short-to-medium haul turboprop airliner.
The fuselage, including the large underfloor freight compartment, was pressurised to 25,000 feet (7,600 m)
The relatively large wing was of two-spar construction, with fuel tankage accommodated between the spars.
Two Napier Eland turboprops were fitted in wing-mounted nacelles and drove reversible-pitched propellers. The main wheels of the tricycle undercarriage retracted up into the nacelles behind the engines.
The surplus power available from the engines, rated at 3,500 ehp for takeoff, together with the low wing loading and large, low-pressure tyres, gave good short- and rough-field performance.
Data from Flight (1957)
- Capacity: 48 to 54 seats
- Length: 23.32 m (76 ft 6 in)
- Wingspan: 28.55 m (93 ft 8 in)
- Height: 9.04 m (29 ft 8 in)
- Empty weight: 10,910 kg (24,052 lb)
- Max takeoff weight: 20,450 kg (45,085 lb)
- Powerplant: 2 × Napier Eland NEl.6 turboprop
Aircraft of comparable role, configuration and era
- Les Ailes, No. 1,642, 20 July 1957. (French)
- "Hamburger Flugzeugbau", Flight, 19 October 1961, pp.619-20
- "Vergessenes Projekt der 50er Jahre - Der Turboprop-Airliner HFB-209", Klassiker der Luftfahrt, 14 January 2014. (German)
- "Civil Aviation: A New West German Turboprop", Flight 19 July 1957, p.93