Project for Specifications G24/35 & M15/35

Hoo-2b-2day

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The early proposals by Bristol and Avro for Specifications G24/35 & M15/35. I will try and get a summary of the article these diagrams came with posted soon.

[Reference: Air Pictorial November 1970 (Volume 32 No 11) Page 400]
 

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Excellent work Hoo-2b-2day,

and the contenders for G24/35 Spec. were; Boulton Paul
P-86,Bristol-149,Avro-672,Avro-675,Fairey and westland.
 
Excellent work Hoo-2b-2day,

and the contenders for G24/35 Spec. were; Boulton Paul
P-86,Bristol-149,Avro-672,Avro-675,Fairey and westland.
The Avro 672 was a derivative of the Avro Anson powered by two Armstrong Siddeley Terrier engines, which had a length of 45 feet 2 in (13.77 meters) and a wingspan of 59 feet 8 in (18.19 meters). It was actually submitted to the M.15/35 requirement, not the G.24/35 specification (to which the Avro 675 design was submitted). Blackburn and Gloster also submitted proposals for the G.24/35 requirement.

The Bristol 149 designation was actually used for the Bristol Blenheim Mk. IV (license-built by Fairchild Canada as the Bolingbroke), and the Bristol contender for G.24/35 requirement, despite being derived from the Bristol 142M, never received a separate company designation. The Bristol submission to the M.15/35 was called the 150 and had a length of 44 feet 3 in (13.49 meters), a wingspan of 58 feet (17.68 meters), a gross weight of 12,022 lb (5,453 kg), and two Bristol Perseus engines. The Boulton Paul submission for the G.24/35 specification wasn't the P.86 (submitted to the 10/36 specification issued in June), but instead the P.84, which resembled the P.83 submission to the M.15/35 specification but incorporated minor changes to the fuselage, slightly lower weight, and reduced internal fuel.

Source:
Buttler, T., 2020. British Secret Projects 4: Bombers 1935-1950. Hinckley, UK: Crecy Publishing.
 

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