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

(Page 47) End item NSN parts page 47 of 51
Part Number
NSN
NIIN
2-014L677-70 O-ring
007592113
2-015L1120-70 O-ring
007651948
2-015L677-70 O-ring
007651948
2-016N602-70 O-ring
002638034
2-019 N506-65 O-ring
006185362
2-020 L677-70 O-ring
003520321
2-020 N506-65 O-ring
005518250
2-020L677-70 O-ring
003520321
2-020L998-70 O-ring
003520321
2-021 N506-65 O-ring
008223691
2-022 N506-65 O-ring
005582330
2-023 N602-70 O-ring
000076143
2-026L677-70 O-ring
003770921
2-028 N304-75 O-ring
005805056
2-02813-6 Tube Cap
006183572
2-028N304-75 O-ring
005805056
2-03145 O-ring
002917295
2-033 N506-65 O-ring
007024725
2-033 V747-75 O-ring
001941670
2-033 VITON O-ring
001941670
Page: 47

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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