Description

1 B-17 from 482BG is despatched on a night operation over the city of Emmerich, Germany, to test the OBOE navigation equipment. OBOE was a British aerial blind bombing targeting system in World War II, based on radio transponder technology.[1] Using triangulation to determine relative location, the system consisted of a pair of radio transmitters on the ground, which sent signals which were received and retransmitted by a transponder in the aircraftt (typically a De Havilland Mosquito or Avro Lancaster). By comparing the time each signal took to reach the aircraft, its location could be calculated to a fair degree. In this way, an aircraft could be directed blindly over a specific target, all of which were pre-calculated and kept on file.https://en.wikipedia.org/wiki/Oboe_(navigation). The test is a success. Ther are no losses or claims.