The Hamburger Flugzeugbau HFB 314 was a postwar design project for a twin-turbojet medium-range transport. It was cancelled when the German government decided to fund only international collaborations.
History
In 1958 HFB proposed to the German Government two new transports, the
HFB 209 turboprop and the HFB 314 short-range jet transport. The 314 would be a direct competitor to the French
Sud Aviation Caravelle
The Sud Aviation SE 210 Caravelle is a French jet airliner produced by Sud Aviation.
It was developed by SNCASE in the early 1950s and made its maiden flight on 27 May 1955.
It included some de Havilland designs and components developed for t ...
, then already under development. Although the German government was initially willing to negotiate over financing the projects, in the end they decided that the German aircraft industry should not develop its own designs but should instead collaborate with other countries. Finance was never made available and HFB could not progress without it. With the competing
Boeing 727
The Boeing 727 is an American narrow-body airliner that was developed and produced by Boeing Commercial Airplanes.
After the heavy 707 quad-jet was introduced in 1958, Boeing addressed the demand for shorter flight lengths from smaller airpo ...
and
de Havilland DH.121 Trident both also advancing steadily, HFB abandoned the project in 1960.
[''Flight'', 18 November 1960, p. 805.]["Pas de Caravelle Allemande", ''Les Ailes'', No. 1,804, 16 Décember 1960.]
Design
The HFB 314 was a conventional swept-wing monoplane intended as a 70-78 seat short-to-medium range jet airliner.
The upper fuselage accommodated the crew cockpit and passenger cabin, while the lower half correspondingly housed the nosewheel and cargo bays. The tail was of T type, with the tailplanes attached on either side of an anti-shock fairing on top of the fin. The fairing delayed the onset of shockwaves and accompanying drag increase at high cruising speeds.
The relatively sharply swept wing was mounted low on the fuselage, with the carry-through structure passing between the cargo holds. The inner wing sections were more sharply swept and tapered, and housed the main undercarriage mechanism which retracted inwards so that the wheels lay in the fuselage.
Two
Rolls-Royce RB 141/11 turbojets were fitted in blisters protruding from either side of the rear fuselage, with alternatives offered including the
General Electric CJ-805-23
The General Electric CJ805 is a jet engine which was developed by GE Aviation in the late 1950s. It was a civilian version of the J79 and differed only in detail. It was developed in two versions. The basic CJ805-3 was a turbojet and powered th ...
or
Pratt & Whitney JT3D-3.
Specification
See also
References
{{DEFAULTSORT:Hamburger Flugzeugbau HFB 314
Hamburger Flugzeugbau HFB 314