Pratt & Whitney JT8D

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© Kenneth W Shanaberger 2000 - 2010

The Engine

Specifications

The JT8D is a turbofan version of the J52 turbojet. This engine was produced to power the Boeing 727 in 1964. Today the JT8D is used by 350 operators to power more than 4,500 aircraft. More than 14,000 have been built.

	Turbofan
	2 fan stages
	6 compressor stages
	3 stage turbine
	bypass ratio: 1.74
	pressure ratio: 18.2 - 19.4
	mass flow: 315-331 lbs/sec

Models

Used by

	JT8D-17: 16,000 lb (72 kN) thrust
	JT8D-217: 20,000 lb (89 kN) thrust

	Boeing 727
	Douglas DC-9
	McDonnell Douglas MD-80

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page updated 01 January 2003