Special Projects/tacamo Iv Parts

End item NSN parts page 1 of 2
Part Number
NSN
NIIN
08-8424-0011 Hydraulic Accumulator
001826527
1076AS110-2 Ceramic Dielectr Fixed Capacitor
002384354
124-3003-743 Deck Baking Oven
002133973
1450 Special Scale Meter
001964709
1650001826527 Hydraulic Accumulator
001826527
16L-11058EL2A Fluid Pressure Regulating Valve
002149996
16LXEA2A Fluid Pressure Regulating Valve
002149996
16SXEA2A Fluid Pressure Regulating Valve
002149996
18507400 Radio Frequency Cable
001639282
18765-1 Alternating Current Motor
002158899
187D-2 Electrical Counter
002397916
187DCLR Electrical Counter
002397916
187G6 Electrical Counter
002375431
22232400 Hydraulic Servovalve
001952487
229-9701-090 Optical Shaft
006137567
229-9701-220 Optical Shaft
006137568
230-0635-010 Alternating Current Motor
001807884
262-3121-010 Digital Display Indicator
001826545
26C26636-100 Directional Control Linear Valve
002097881
280070-7 Fluid Pressure Regulating Valve
002302143
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Special Projects/tacamo Iv

Picture of Special Projects/tacamo Iv

The Boeing E-4 Advanced Airborne Command Post, with the project name "Nightwatch",

Two of the original 747-200 airframes were originally planned to be commercial airliners. When the airline did not complete the order, Boeing offered the airframes to the United States Air Force as part of a package leading to a replacement for the older EC-135J National Emergency Airborne Command Post (NEACP). Under the 481B NEACP program the Air Force Electronic Systems Division awarded Boeing a contract in February 1973 for two unequipped aircraft, designated E-4A, powered by four P&W JT9D engines, to which a third aircraft was added in July 1973. The first E-4A was completed at the Boeing plant outside Seattle, Washington in 1973. E-Systems won the contract to install interim equipment in these three aircraft, and the first completed E-4A was delivered to Andrews AFB, Maryland in December 1974. The next two were delivered in 1975, the third differed by being powered by the GE F103 engine, which was later made standard and retrofitted to the previous two aircraft. The "A" model effectively housed the same equipment as the EC-135, but offered more space and an ability to remain aloft longer than an EC-135.

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