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Power Supply

Technical Information

Catalogue No: C0877
Category: Unknown
Object Type: Module/Sub-Assembly/Component
Object Name: Power Supply
Part No: 75DSK6180
Serial No: 003/68
Manufacturer: Marconi-Elliott Avionic Systems Ltd
Division: Unknown
Platform(s): Jaguar
Year of Manufacture: 1968
Dimensions: Width (mm): 193
Height (mm): 204
Depth (mm): 370
Weight (g): 15,780
Location: Rack RAA01 [Main Store]

Type No 75DSK6180
Ref No
Ser No 003/68
Code No K0656
Modification Record -
[other scribblings]
P.S.U. 75DSK6180 DL Iss 1
Ser No 003
Jag 2197 1314 1362
Jaguar 40


The Power Supply Unit accepts raw aircraft power; nominally 300W at 28VDC and 1080W at 200V 400 HZ. The PSU generates all the stabilised supplies and precision frequencies required by the E3R Inertial Platform, the Platform Electronics Unit and the Interface Unit (which feeds the other blocks of the system).

In 1967 Elliotts had been awarded a major contract for the design, development and integration of a Navigation and Weapon Aiming Sub-System (NAVWASS) for the RAF's new Jaguar aircraft.

The Jaguar was designed as a close air support aircraft for supporting ground troops in daylight. The NAVWASS enabled the pilot to navigate and fly at low level and high speed to acquire and accurately attack targets. Trials of the prototype Jaguar system were carried out using a Varsity aircraft at West Malling airfield in Kent


The Jaguar NAV/WASS  sub-system comprises four principal groups of equipment. The sensors, which measure what the aircraft is doing and feed these measurements into the computer; the computer sub-system which processes this measured information into a form which can be used by the pilot; the cockpit controls which control the system's mode of operation and lastly, the cockpit displays which show to the pilot the computer's outputs of converted measurement information and also information, such as target or waypoint position, which is being input into the computer. The system included an E3R inertial platform, Digital Computer, a HUD, Projected Map Display, Horizontal Situation Indicator and various cockpit control panels.

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