Largest Engines in the World
World’s Largest Turbofan Engine
Weighing in at just under 8300 kgs, the E90-115B is the world’s biggest jet engine. At 18 foot long and 11.25 wide this incredible engine set the world record for blasting 127,900 pounds of thrust. That’s a beast!
“In 1995, the GE90 engine debuted aboard a British Airways 777 aeroplane along with commercial aviation’s first-ever carbon-fiber composite fan blades. Early GE90 engine models boasted outputs between 74,000 and 94,000 lbs. of thrust, and today it remains the world’s largest turbofan engine.”
Largest Mass produced aviation piston engine – in the US
The Pratt & Whitney R-4360 Wasp Major was a four-row radial piston aircraft engine designed and built during World War II. The Wasp Major was the largest-displacement aviation piston engine to be mass-produced in the United States.
The last of the family and the culmination of Pratt and Whitney’s piston engine tech the war ended before it could be used in combat aircraft.
Eight of these beasts were used on the famous “Spruce Goose” H-4 Hercules, each producing 3000bhp.
With a name like that, you’d hope the engine can meet expectations. It certainly can, the 71-litre version has 28 cylinders, in a radial configuration and a power output of 3500 bhp.
The Largest Radial Aero Engine
Let us introduce the Lycoming XR-7755. At 127 liters, 5,000 break horsepower, 36 cylinders and 2.7 tons, if that’s not a big engine I don’t know what is.
The Lycoming XR-7755 was, and still is, the largest piston-driven aircraft engine ever produced. It was intended for use on the USAF “European Bomber” (which eventually became the B-36 Corsair). The project was cancelled in 1946 with the USAF’s attention diverted to jet engines.
Thanks to Interesting Engineering for this great article