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Type 80 HUD Optical Module

Technical Information

Catalogue No: C0031
Category: Head-Up Display [HUD]
Object Type: Module/Sub-Assembly/Component
Object Name: Type 80 HUD Optical Module
Part No: 229 SKD 15145
Serial No: 101/68
Manufacturer: Wray (Optical Works)
Division: Unknown
Year of Manufacture: 1968
Dimensions: Width (mm): 108
Height (mm): 139
Depth (mm): 120
Weight (g): 1,968
Location: Rack RAA13 (HUD DU Parts) [Mezzanine Store]

[80 Seri]es Projection Unit
Type No. 229 SKD 15145
Ref. No.
Ser. No. 101/68
Made in England


A new generation HUD, the Type 80 was introduced by Elliotts for the civil market in July 1968 and proposed for a number of British and European transport aircraft. The equipment comprised the Pilot's Display Unit, a Display Computer (waveform generator) and various ancillary units which together formed the instrumentation system.

The introduction of a laminar-beam CRT reduced the size of the Projection unit. The problem of the different symbol formats that were certain to arise between different airlines was accommodated by altering a single matrix board. Full self-monitoring was included and self-test to line replaceable unit level gave acceptable integrity.

The concept was essentially modular to allow installation in a wide variety of aircraft. An artists impression of a Type 80 installation in a VC10 shows the Projection assembly located above the pilot's head with a glareshield mounted Combiner. This was the type of installation actually used in the Varsity whereas the Belfast was entirely glareshield mounted. However only 3 of these Type 80 HUDs were delivered.

This item is the optical relay assembly and was probably made by Wray Optic in Bromley.

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