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

(Page 27) End item NSN parts page 27 of 51
Part Number
NSN
NIIN
12135G-04 Headset-microphone
012048505
1213AS624-6-3 Pin-rivet
009590150
1213AS624-6-5 Pin-rivet
009694521
121T956 Hexagon Self-locking Nut
002982747
122-5277656 ITEM 33 Cotter Pin
002368362
122-5277664 ITEM 55 Cotter Pin
002368362
122-5277665 ITEM 55 Cotter Pin
002368362
122-5277698 ITEM 15 Cotter Pin
002368362
12210329-2 Retaining Ring
009037567
12223-1 Pressure Switch
007195682
122357-7 Annular Ball Bearing
005555226
1224294 Fluid Filter Element
002173588
123-044-5 O-ring
001661049
123-235-1 O-ring
002519369
123-235-5 O-ring
002519369
123-279-5 O-ring
001675122
123-5277657 ITEM 40 Machine Screw
009543487
1237-10-2218FPS Fluid Filter Element
002773274
Page: 27 ...

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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