Was the Napier Sabre a good engine?
The engine evolved to become one of the most powerful inline piston aircraft engines in the world, developing from 2,200 hp (1,600 kW) in its earlier versions to 3,500 hp (2,600 kW) in late-model prototypes. THIS MONSTER MAKES OVER 2100 HP,and over 1550 Ft. Lbs of Torque, AND YES IT’S NATURALLY ASPIRATED ! NICKNAMED THE GODFATHER Because this is the Big Daddy of all engines, and who else could produce such an Amazing Engine, nobody but Sonny Leonard Himself!
What was the problem with the Napier Sabre engine?
It was the very sleeve valves that contributed to the efficiencies of the sabre engine that were also the cause of some initial teething problems. Napier’s mass production of the sleeves had led to issues with the sleeve’s circularity which in turn had led to engine seizures. The napier sabre i (e107) engine had a 5. With a bore diameter greater than the stroke length, the sabre was an over-square engine. Each cylinder displaced 93. L), and the engine’s total displacement was 2,239 cu in (36. L).