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Colour Head-Down Display

Technical Information

Catalogue No: C0337
Category: Head-Down Display [HDD]
Object Type: Display Unit
Object Name: Colour Head-Down Display
Part No: 229-034877
Serial No: 001
Manufacturer: GEC Avionics
Division: Unknown
Year of Manufacture: Unknown
Width (mm):
Height (mm):
Depth (mm):
Weight (g):
Location: Rack RAA08 [Main Store]

GEC Avionics
Part 229-034877
Ser 001
NSN 3441906
Code K0656


The control panel is located on the left hand side unlike all the other related items.

This multifunction Colour Head Down Display was designed, built and commissioned by the Company Research Lab. (FARL). The unit is fitted with a Matsushita ruggedised delta shadowmask Cathode Ray Tube. The 5” by 5” CRT was installed in a rugged assembly with deflection coils by Brimar in the UK. With a screen pitch of 0.2mm the CHDD gives a high resolution and high contrast picture. There is a contrast enhancement filter and NVG compatibility is provided. A touch-screen option which can be used as a keyboard was offered but is not included on this example. Without hardware change the HDD can operate with 625/50 or 525/60 TV Line Standards.

Two of these displays were used in the Real Night trials programme on an A-6E Intruder aircraft. t

The use of the Matsushita tubes was unlikely for a production programme as the supplier could only offer the items for commercial programmes.

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