McDonnell Douglas Phantom FG1 (Nose section only)

Equipment Fit

In common with the airframe, many equipment items were British built. UHF/VHF Communication and automatic direction finding (ADF) systems were carried, along with an AN/ARN-91 TACAN bearing/distance navigation system, a British-built Identification Friend or Foe (IFF) system based on that developed for the TSR-2, Instrument Landing System (ILS), STR-70P radio Altimeter, British Marconi licence-built AN/ASN-39A Navigational analogue Computer, British Marconi licence-built autopilot, and a Gunsight Recording camera system to photograph the pilot’s forward outside view, used simultaneously with the lead computing optical sight system (LCOSS) for both gunnery and missile attacks. Also carried were a camera-based Missile Monitoring system to record missile launch and a pod-carried Airborne Instrumentation Sub-System forming the airborne component of an air combat manoeuvring range/instrumentation system.

For Air Intercept, the American Westinghouse AN/APQ-59 radar used in the AN/AWG-10 fire control system was retained, though built in the UK under licence by Ferranti. The AWG-11 (RN air intercept version) and AWG-12 (RAF ground attack/mapping radar), incorporating a Marconi inertial navigation and attack system (INAS), fed navigational information to the pilot’s head-up display (HUD) as well as navigator’s cockpit displays. This was the most advanced radar in Europe at the time. From 1976 the distinctive Marconi ARI18228 passive Radar Warning Receiver (RWR) - unique to British Phantoms - was added to the fin-tip, with both ECM (electronic counter-measures) and Passive Radar Warning systems carried.

Some FGR.2s were wired for the EMI reconnaissance pod fitted on the centreline, and a chaff/flare dispenser could also be carried. A pod-mounted strike Camera System could also be carried with F.95 or G.90 cameras. In the main it was the electronics fit that differentiated the RN and RAF versions.

Further reading
Phantom AeroGuide 13 McDonnell Douglas Phantom FG Mk 1/FGR Mk 2
Roger Chesneau Linewrights Ltd 1986

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