Pyronaut

Pyronaut is a specialised form of fireboat known as a fire-float. It was built in 1934 by Charles Hill & Sons Ltd., Albion Dock Bristol, Yard No. 208. Registered number 333833. She is owned by Bristol Museums and based at M Shed in Bristol's Floating Harbour.

Originally powered by two Petter Atomic diesel engines rates at 55 bhp each. Two Merryweather & Sons three-cylinder reciprocating pumps capable of delivering 500 imperial gallons of water per minute.

This equipment was replaced in 1968 by two Ruston & Hornsby 6YDM six-cylinder diesel engines rated at 90 bhp each, driving screw propellers from the front power-take-off, and Coventry Climax centrifugal pumps capable of delivering 1,000 imperial gallons of water per minute from the…

Source: Wikipedia