Jaguar Flight Control Computer

Technical Information

Catalogue No: C0320
Category: Flight Control
Object Type: Signal/Data Processor
Object Name: Jaguar Flight Control Computer
Part No: 49-059-01
Serial No: 105
Manufacturer: Marconi Avionics
Division: Flight Systems [FSD]
Platform(s): Jaguar FBW 
Year of Manufacture: circa 1980
Width (mm):
Height (mm):
Depth (mm):
Weight (g):
Location: Archive Object Store

Marconi Avionics Limited
Flight Control Computer
Part 49-059-01
Ser 105
Code K0656


This flight control computer (FCC) was part of the FBW system developed to demonstrate the feasibility of Active Control Technology using an RAF Jaguar which was withdrawn from Service. The aircraft’s normal control rods were replaced with an Integrated Flight Control System FBW which used four of these independent FCC to electrically relay instructions to the flight surfaces.
Following initial flight trials, the aircraft was further modified to make it aerodynamically unstable by fitting large leading edge strakes (wing extensions) to move the centre of lift forward whilst adding ballast to the rear fuselage to move the centre of gravity aft. This enhanced lift and drag characteristics and improved tail plane efficiency thereby allowing smaller lighter engines to be fitted with greater fuel efficiency, whilst greatly enhancing aircraft manoeuvrability – important to the next generation of air superiority fighters.
The aircraft first flew on 20 October 1981 and was the first aircraft to fly with an all digital FBW flight control system with no form of reversionary (back up) control. The test programme was completed in 1984 after 96 flights, having successfully demonstrated concepts which were subsequently incorporated into the Typhoon and Boeing 777 FBW flight control computers produced by the company.

This unit is fitted with a PSU marked:

"Marconi Avionics Limited
Power Supply Unit
Part 7502-00014
Ser 106
Code K0656"

and this unit also has various labels affixed to it marked:

"Qual Box
Flight Systems Division
GEC-Marconi Avionics
Airport Works
Rochester Kent"

"COM ST046"

"FWTM013", "FWTM014", "FWTM018", "FWTM010", "FWTM023", "FWTM027" & "FWTM028"

as well as inspection seals marked:
Combat Aircraft Control Division"

Click to enlarge