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HUD EU Cooling Rig

Technical Information

Catalogue No: C0516
Category: Head-Up Display [HUD]
Object Type: Mounting Tray
Object Name: HUD EU Cooling Rig
Part No: 229-026379-01
Serial No: PDS-008
Manufacturer: GEC Avionics
Division: Unknown
Platform(s): F-16A/B Fighting Falcon 
Year of Manufacture: circa 1976
Width (mm):
Height (mm):
Depth (mm):
Weight (g):
Location: Main Object Store

GEC Avionics Limited
EU Cooling Rig
Part 229-026379-01
Ser PDS-008
Code K0656


The Electronics Unit for the F-16A/B HUD is cooled by an aircraft air conditioning system. When the EU is on bench test a cooling air supply is needed and this unit is a Mounting Tray with a box containing a fan. These cooling rigs were supplied to support establishments and engineering labs.

In January 1972 the Lightweight Fighter Programme asked for designs from several American manufacturers. In January 1975 General Dynamics was pronounced the winner with the YF-16. Since its small beginning with an initial USAF order for 650 aircraft, the F-16 has become one of the largest and most successful military aircraft in aviation history. At least 23 countries have purchased the F-16 in various forms.

The HUD system, which at one point seems to have been called the HUDSIGHT by the Company, consisted of a Pilot’s Display Unit (PDU), an Electronics Unit (EU) and a Rate Sensor Unit (RSU).  General Dynamics however called it the Fire Control Sight System FCSS.                                                                                     

The F-16 A/B was an international programme with a requirement for offset. The HUD PDU and EU were both built in Rochester and at Atlanta in Georgia, de Oude Delft in the Netherlands also built the PDU and  Kongsberg Vapenfabrik in Norway also built the EU. The Rochester site was responsible for the design, production and supply of complete HUD systems. The legend "27489" on the Ident labels of many of the boxes is a defunct CAGE code for the Rochester site of Elliott Bros (London) Ltd.    

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