Flight, February 1935
THE BRISTOL MONOPLANE FIGHTER
Split Flaps and Retractable Undercarriage Contribute to Remarkable Performance
MILITARY aircraft design is largely governed by the requirements which are paramount in air policy at any given time. If the
policy changes, the design of military aircraft changes with it. Hitherto climb and extreme manoeuvrability have been held to be the greatest necessity. Now that great speed has also become a necessity, several designers have turned to the monoplane type.
The latest to do so are the Bristol designers, and our photographs show the results. The Bristol single-seater fighter is a low-wing cantilever monoplane of all-metal construction, with stressed-skin covering. The low frontal area is well shown in the front view at the top of the page. Two objects are achieved by giving the wing roots a downward slope. The angle between the upper surface of the wing is less acute, and the distance from wing to ground is reduced, giving short undercarriage legs.
The wheels retract only partly into the wing, a curious "knee joint” being used, which is somehow reminiscent of the front legs of an elephant. When raised they do, however, form faired projections, so that the drag is probably very low. Some extra speed is also gained by providing a sliding transparent roof over the pilot’s cockpit, and altogether the new Bristol is certainly one of the fastest British aeroplanes in existence. The engine is a Bristol “Pegasus.”
A reasonably low landing speed has been retained by using split trailing-edge flaps.
THE RETRACTILE FASHION SPREADS: A notable feature of the new Bristol Day and Night Fighter, apart from the cantilever low-wing construction, is the use of a retractile undercarriage. The engine is a Bristol "Mercury."
Efficiency is the keynote of the new Bristol design. The low frontal area is indicated.
One of Recent British Fighters: Bristol F.7/30
Efficiency is the keynote of the new Bristol design. The picture show the split flaps and retractable undercarriage.
A somewhat unusual cowling was fitted to the Mercury engine of the Bristol 133 fighter.
Fitted with four guns and powered with a Mercury engine the Bristol 131 single-seater fighter was one of the most formidable machines of its day.