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Electronic Head-Down Touch-Screen Display

Technical Information

Catalogue No: C0061
Category: Head-Down Display [HDD]
Object Type: Display Unit
Object Name: Electronic Head-Down Touch-Screen Display
Part No: 79-059-01
Serial No: 001
Manufacturer: Marconi-Elliott Avionic Systems Ltd
Division: Flight Automation Research Laboratory [FARL]
Platform(s): Tornado
Year of Manufacture: Unknown
Dimensions: Width (mm): 180
Height (mm): 192
Depth (mm): 448
Weight (g): 8,700
Location: Rack RAA08 [Main Store]

Marconi-Elliott Avionics
Part 79-059-01
Ser 001
Code K0656
Mod Record -


This unit is an oddity which uses the back end from a development standard (-01) EHDD, but has a different flat bezel. The bezel has an array of Infra-red emitters and detectors built into it to provide a touch screen. This was developed by George Bull in the mid 1980s and was a favourite at Company Open Days when programmed with cartoon characters. Touch screens were however not accepted by Pilots so much because of the risk of getting finger marks on the screen which could obscure the display.

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