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. 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). 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. 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. They provide a more sophisticated trigger mechanism than the common contact fuze or timed fuze. Proximity fuzes are designed for targets such as planes, missiles, ships at sea and ground forces. and the resulting apparatus (known as a P.A.C. A proximity fuze is a fuze that detonates an explosive device automatically when the distance to the target becomes smaller than a predetermined value.
With a small spatial structure and high integration, combined with the Doppler. 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. This paper mainly introduces a design and implementation scheme of proximity fuze based on 24GHz microwave radar. 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. (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: re the design and development of various U.P. In one form, light waves from the projectile are reflected by the target back to a photoelectric receiver in the projectile as it 35 passes the target, the receiver being operable by the re¬ flected light waves to detonate the fuze. Skip to main content Due to a planned power outage on Friday, 1/14, between 8am-1pm PST, some services may be impacted. The following papers contain minutes, drafts, correspondence, progress reports, etc. the fuze in response to proximity of the target, and various forms of proximity fuzes have been devised. proximity fuze technical manuals:AMCP 706-210, FuzesAMCP 706-211, Fuzes, Proximity, Electrical, Part 1AMCP 706-212, Fuzes, Proximity, Electrical, Part 2AMCP.
U.P.'s (UNROTATED PROJECTILES) AND PROXIMITY FUZES