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F-4 PeriHUD Pilot's Display Unit

Technical Information

Catalogue No: C0036
Category: Head-Up Display [HUD]
Object Type: Display Unit
Object Name: F-4 PeriHUD Pilot's Display Unit
Part No: 229-005217-01
Serial No: 003
Manufacturer: Elliott Automation
Division: Airborne Display [ADD]
Platform(s): F-4 Phantom
Year of Manufacture: circa 1975
Dimensions: Width (mm): 182
Height (mm): 155
Depth (mm): 365
Weight (g): 5,560
Location: Rack RAA14 (HUD DUs) [Mezzanine Store]

Serial No 003
F4J Optical System
Supplier Part No 012970
Buyers Part No 229-002611
Serial No p----626
Mod Record -


The optical system used beam splitting surfaces which allowed the pilot to "look around" the CRT. In 1975 Marconi Avionics manufactured a Staff Ellis design called the PeriHUD. It was so called because the optical system folded the CRT image, in the manner of a periscope, to both sides of the CRT where the image is combined with the outside world view. This allowed the pilot to effectively look around the CRT thus providing a very shallow glareshield mounted unit. A Field of View of 17° H x 17° V was achieved. The design can be installed aft up to the ejection line and because of its shallow depth can be placed on top of existing instrumentation.The HUD was test flown in an F-4J but never went into production.

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