The fuze is designated to initiate the warhead at the optimum height above the target providing the maximum effectiveness of the mortar ammunition. This was known as a proximity of 'P.E.' fuze and it used a photoelectric cell which would activate a detonator when the shadow of an aircraft fell across it. A proximity fuze for use in a tube launched projectile carrying a payload, comprising an oscillator for generating a radio frequency signal which has a varying frequency, a single antenna for. The AR-787 is Proximity fuze utilizing the Doppler Effect. weapons used delayed action fuzes but these were unsatisfactory for several reasons, so efforts were made to design a fuze that would cause an explosion only when an enemy aircraft was in range. This project was called the 'Spaniel' (see G.385-G.387). weapon) was used as a defence against dive bombers from ships.Īnother early investigation was into the possibility of making some form of guidance system for a U.P. and the resulting apparatus (known as a P.A.C. It was then suggested that the mines might be packed with the parachute and wire into a cylindrical container and attached as the head of a U.P. In September-October 1939, at Cherwell's instigation, research was being carried out by the Admiralty into the possibility of filling anti-aircraft shells with small aerial mines attached to a parachute by a long wire. Description Proximity Fuze M728 is the latest model of the adjustable delayed-arming type designed for use with projectiles fired from 4.2-inch mortars. (later Sir Alwyn) Crow and a wide variety of weapons was investigated. The summer of 1939 saw the setting up of the Projectile Development Establishment to work on the development of 'Unrotated Projectiles' (rockets). Oxford University: Nuffield College Library, not available at The National ArchivesĪdministrative / biographical background: They had created the proximity or VT fuze, which would go off when it sensed it was near a target instead of being set to go off at a specific time after it was fired.
re the design and development of various U.P. The Proximity Fuze Part 2 By the end of 1942, Section T of the American National Defense Research Council had solved one of the great problems in anti-aircraft gunnery. The following papers contain minutes, drafts, correspondence, progress reports, etc. U.P.'s (UNROTATED PROJECTILES) AND PROXIMITY FUZES An electronic device for detonating a warhead as it approaches a target, used in antiaircraft shells. Details of CSAC 80.4.81/G.376-G.409 Reference: Proximity fuzes synonyms, Proximity fuzes pronunciation, Proximity fuzes translation, English dictionary definition of Proximity fuzes.
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