Tf-33-p-7 (c-141a/b) Aircraft Engine Parts

(Page 40) End item NSN parts page 40 of 51
Part Number
NSN
NIIN
1730842-42 Fluid Filter Element
002773274
1735A Hose Clamp
002789197
1736525-392 Screw Thread Insert
002904521
1736994 O-ring
002638033
1737AS40158-1 Lug Terminal
001141300
1747P Tapered Roller Cone And Rollers
001003578
175-2 Hexagon Slotted Plain Nut
001768112
175-4 Hexagon Slotted Plain Nut
001768115
1755702 Electrical Wire
005786602
1756140 Electrical Insulation Tape
002848565
175S12 Hexagon Slotted Plain Nut
001768110
175S2 Hexagon Slotted Plain Nut
001768112
175S4 Hexagon Slotted Plain Nut
001768115
176042 Self-aligning Plain Bearing
010308773
176844 Electrical Wire
008173597
177002-4 Annular Ball Bearing
005555226
177004-227 Machine Screw
009399189
177004-80 Machine Screw
009472169
177004PC221 Machine Screw
009399187
Page: 40 ...

Engine, Aircraft, Tf-33-p-7 (c-141a/b)

Picture of Tf-33-p-7 (c-141a/b)  Aircraft Engine

The Pratt & Whitney JT3D is an early turbofan aircraft engine derived from the Pratt & Whitney JT3C turbojet. It was first run in 1958 and was first flown in 1959 under a B-45 Tornado test aircraft. Over 8,000 JT3Ds were produced between 1959 and 1985. Most JT3D engines still in service today are used on military aircraft, where the engine is referred to by its USAF designation of TF33.

Aware of the competition from the Rolls-Royce Conway turbofan, Pratt&Whitney decided to develop the JT3D turbofan from the JT3C turbojet for later deliveries of the Boeing 707 and the Douglas DC-8, then nearing entry into service. A 2-stage fan replaced the first 3 stages of the 9-stage JT3C LP compressor. On the LP turbine, the second stage was enlarged and a third stage added.

Unlike GE with the CJ805-23, Pratt & Whitney had not undertaken any transonic fan research prior to designing the JT3D, so they were unable to incorporate a single stage unit into the specification. Instead P&W designed a 2-stage unit based on some research they had done to support the J91 nuclear turbojet.

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