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 engines, though the Rolls-Royce Griffon was considered a potential future substitute. (159).jpg
You can find more technical discussions and original design drawings on the Secret Projects Forum . The Bristol Type 159 was a four-engined heavy