Air International 1989-01
J.Fricker - EFA's Great Radar Contest (1)
The RAF's Douglas Havoc IIs had Al Mk IV radar, like the early Beaufighters; this example has a Turbinlite in the nose.
Naval equivalent of the RRE-developed Al Mk 17 is GEC’s Al Mk 18 installed in the de Havilland Sea Vixen.
Early British radar installations used a dipole transmitting aerial in the nose and separate wing dipoles for receiving, resulting in all-round coverage and substantial ground returns. The Beaufighter I had Al Mk IV with dipoles on both wings.
Макет самолета EFA
Истребитель "Дифайэнт" II Королевских ВВС
Al Mk VI on the Boulton Paul Defiant Mk IA, which had the transmitting aerial on the starboard wing and receiving dipoles on the sides of the front fuselage.
A further example of Al Mk X installation was provided by the Meteor NF Mk 11
Introduction of the Panavia Tornado F Mk 3 to succeed the English Electric Lightning has brought GEC Marconi to the forefront of radar development for the RAF, in succession (at least temporarily ) to Ferranti.
The development of successive radars in Britain has called for the use of numerous flying test-beds, such as this BAC One-Eleven 400 (part of the RAE fleet) that was used for the initial development of the Ferranti Blue Vixen multi-mode coherent pulse-Doppler radar for the Sea Harrier mid-life update.
After prolonged teething troubles, the latest "Z"-standard Foxhunter radar in the Tornado F Mk 3 has been developed by Marconi Defence Systems to meet most of the RAF’s original operational requirements. Note the unusual configuration of the folded Cassegrain antenna, and the split modules for simplified maintenance access.
GEC Marconi’s Al Mk 24 Foxhunter radar for the Tornado has not been without its early problems, but these are now being steadily eradicated and the first live firings of Sky Flash have been made with complete success, demonstrating the integration of aircraft and weapons system.
Al Mk X, designed in the US by Westinghouse, became the RAF’s standard equipment in early post-war night fighters such as the Vampire NF Mk 10.
The first of numerous night fighter variants of the Mosquito, the NFMk II had Al Mk IV with the distinctive dipole aerials in the nose and wings.