Wieser directed the first successful testing of the technology necessary for the creation of an airborne interception system ( using radar and computers ), which from this embryonic state, would later develop into the Semi-Automatic Ground Environment system ( SAGE ).
32.
They also took up development of the other technologies presented at that meeting, including an airborne interception radar and a radio navigation system that became LORAN . The expansion of the Committee led to it being renamed the Radiation Laboratory ( RadLab ) in 1940.
33.
Re-designated as the I-350, the I-350M-1 first prototype was fitted with a RP-1 Izumrud airborne interception radar and the second prototype, I-350M-2, was fitted with a Korshun airborne interception radar.
34.
Re-designated as the I-350, the I-350M-1 first prototype was fitted with a RP-1 Izumrud airborne interception radar and the second prototype, I-350M-2, was fitted with a Korshun airborne interception radar.
35.
The Fighter Interception Unit was initially set up to evaluate technological advances such as airborne interception ( A . I . ) equipment ( an on-board interception radar ) and other operational innovations, to counter increasing night raids by the " Luftwaffe ".
36.
Additional criteria given in the requirement included a minimum flight endurance of two hours, a takeoff distance of 1, 500 yards, structural strength to support up to 4g manoeuvres at high speed and for the aircraft to incorporate airborne interception radar, multi-channel VHF radio and various navigational aids.
37.
Thirty-one of the DB-7's ( Havoc I ) were converted to carry the 2, 700 million candela ( 2.7Gcd ) Helmore Turbinlite searchlight in the nose, as well as Airborne Interception Mk . IV ( A . I . Mk . IV ) radar.
38.
Civilian scientists, flying from Defford with aircrews drawn from the Royal Air Force and Royal Navy, tested radar systems which were to revolutionise the operational capability of Allied aircraft . Early successes with Airborne Interception ( AI ) systems were demonstrated by Bomber Command crews, taking part in the strategic bombing offensive.
39.
On 1 March 1940, Air Marshal Roderic Hill issued a contract under Specification B . 1 / 40, for 50 bomber-reconnaissance variants of the DH . 98 : this contract included the prototype, which was given the Airborne Interception ( AI ) Mk . IV equipment as a day and night fighter.
40.
However, Putley supports Rowe's decisions in giving priority, and most of TRE's resources, to the completion of the Chain Home and Chain Home Low systems in 1938 39, and also continuing research in 1940 on developing airborne interception ( AI ) radar and centimetric radar with the cavity magnetron.
