Fairbanks Morse PA6B STC engine

The Fairbanks Morse PA6B STC is a four-stroke medium-speed diesel engine of the Pielstick PA6 B family, sold by Fairbanks Morse Defense in 12, 16, 18 and 20 cylinder V arrangements, though the 18 cylinder version is not available in the STC propulsion form. The bore is 280 millimetres and the stroke 330 millimetres, giving 20.3 litres per cylinder, and the maker lists 4,200 to 8,100 kilowatts, with propulsion ratings at 1,050 revolutions a minute and generator ratings at 900. Fairbanks Morse says more than 840 of these engines are in operation and builds them under licence from Everllence, formerly MAN Energy Solutions. A MAN brochure on the S.E.M.T. Pielstick PA6 B Navy says nearly 900 PA6 engines were installed in military ships. In April 2021 Fairbanks Morse shipped a PA6B STC engine to Fincantieri Marinette Marine for the first Royal Saudi Naval Forces Multi-Mission Surface Combatant ship.