Saturday, 10 June 2017

Martin-Baker Delta

The Martin-Baker Delta was Martin-Baker's contestant for the F.43/46 Air Ministry specification which required an interceptor powered either by the Rolls-Royce AJ.65 or the Metrovick F.9. Many candidates were presented to the specification, Gloster P.234, Gloster P.248, Gloster P.250, Hawker P.1054 and Martin-Baker Delta.
It was a delta-shaped design, just like the German Lippisch P.13a, with a fin commencing with the cockpit section that extended upwards and along the remaining fuselage length. It was designed to have a tricycle undercarriage retracting upwards and stowed to the rear in line with the fuselage. It was going to be powered by a Roll-Royce AJ.65 with nose intake and fuel capacity for 300 gallons (1363,83 litres) in two fuel tanks mounted in the wings. It was going to be equipped with a single ejection seat, placed above the engine, enclosed in a fully pressurized cockpit and it was going to be armed with two 20mm Hispano cannons placed in the wings section, one in each side, just adjacent to the fuselage with 200 rounds per gun.
In the end, the specification F.43/46 was superseded by the F.3/48  which was won by the Hawker P.1077 that was the prototype of the famous Hawker Hunter.










Sources:
1. http://www.secretprojects.co.uk/forum/index.php/topic,1217.0.html
2. https://en.wikipedia.org/wiki/List_of_Air_Ministry_specifications
3. Midland Publishing - British Secret Projects

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