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

British B.1/39 Heavy Bomber Competition - Secret Projects Forum (159).jpg

The Bristol Type 159 was a four-engined heavy bomber designed to meet the British Air Ministry's . It is often nicknamed the "Beaubomber" because it was essentially a significantly upscaled version of the successful Bristol Beaufort. : The initial design called for Bristol Hercules

: 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. : Bristol engineers aimed to utilize their experience

: 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.

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

While the filename "(159).jpg" is generic and used across many different digital libraries, it is most notably associated with historical design documents for the , a proposed British heavy bomber from the early 1940s. The Bristol Type 159 "Beaubomber"