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: The initial design called for Bristol Hercules engines, though the Rolls-Royce Griffon was considered a potential future substitute.

: Bristol engineers aimed to utilize their experience with the Blenheim and Beaufort. The Type 159 was intended to be longer than the Beaufort and featured a distinctive twin-fin tail design. (159).jpg

: The aircraft was designed to be heavily armed with eight Hispano cannons mounted in two turrets, a configuration similar to the Boulton Paul P.92. : The initial design called for Bristol Hercules

You can find more technical discussions and original design drawings on the Secret Projects Forum . (159).jpg

British B.1/39 Heavy Bomber Competition - Secret Projects Forum