This led to efforts to develop an operational unit for "Airborne Interception" (AI).

But Airborne Interception radar (AI) was unreliable.

The Airborne Interception Mk.

NF Mk I with Airborne Interception radar.

They had a slightly longer fuselage than the Mk I and had modifications to house their airborne interception (AI) radar.

II (Mark 2 Airborne Interception) radar became ASV.

It was decided after some debate, that this prototype, given the serial number W4052, would carry Airborne Interception (AI) Mk.

It was a multimode radar for airborne interception and air-to-surface strike roles over water and land, with look-down and look-up modes.

The third prototype was primarily used in the testing of the new Marconi/Ferranti AI.24 Foxhunter airborne interception radar.

The Beaufighter came off the production line at almost exactly the same time as the first British Airborne Interception (AI) Night fighter radar sets.

The Bristol Blenheim was not designed as a night fighter and the Airborne Interception (AI) was still in its very early days of development.

Taffy Bowen had noticed during his early AI (Airborne Interception) experiments before the war that the radar returns from fields, cities and other areas were different.

Was an improved training version, which like the T.4 before it, was used to train airborne interception (AI) radar operators, conversions from B.1 and T.4.

The FuG 240 "Berlin" was an airborne interception radar introduced very late in World War II by the German Luftwaffe.

Airborne interception of the LTTE light aircraft were developed using both fixed wing and rotary wing aircraft until dedicated interceptors were acquired.

This OTU instructed pilots on Airborne Interception techniques using the Bristol Beaufighter and Bristol Blenheim.

In early summer 1940, squadron aircraft were fitted with VHF radiotelephone equipment and Mark III Airborne interception (AI) radar.

Results of the combined operations were not spectacular, (only one confirmed kill with 31 aircraft lost), but valuable experience in the use of the A.I. (Airborne interception) radar was gained.

In 1983, the type took over the duties of airborne interception from the Royal Australian Air Force's Mirage IIIOs detachment stationed at Tengah.

August 1943 to March 1944 - No. 63 Operational Training Unit RAF instructing Airborne Interception techniques with Bristol Beaufighters and Blenheims.

The German Luftwaffe was one of the first forces to introduce a airborne interception radar, in the form of the FuG 202 "Lichtenstein" which first appeared operationally in 1942.

Airborne Interception radar progressed from the initial AI Mk I version to the AI Mk 24 Foxhunter used in the Panavia Tornado.

The Defiant Mk II model was fitted with the AI Mk IV airborne interception radar and a Merlin XX engine.

The radar and gunsight were collectively designated the AIRPASS: Airborne Interception Radar and Pilot Attack Sight System.