G-H was a radio navigation system developed by Britain during World War II to aid RAF Bomber Command.
G-H was a two station radio direction finder system. Instruments in the bomber measured its position from one station and distance from another. It could be used by upto 80 bombers from any one pair of stations. By using more than one pair of stations multiple targets could be attacked at the same time without the aid of pathfiders and markers. Once a major part of Bomber Command to be fitted with it, G-H became a most useful blind-bombing device.
G-H was used for the first time on 4/5 October 1943 when one Mosquito attacked Aachen, the trial was not a success. The second trial was 16/17 October 1943 when 9 Mosquitos attacked Dortmund, one was carrying out a G-H trial but its equipment failed and it had to bomb by dead reckoning. It was used for the first time in a large raid on the Mannesmann steel works at Düsseldorf on night of 1/2nd November about half of the sets faild leaving only 15 aircraft to bomb the factory on G-H.
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Last updated: 05-31-2005 14:03:05
