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A Proximity Fuse (also VT fuse [1] [2] [3] or "variable time fuze") is a fuse that detonates an explosive device automatically when it approaches within a certain distance of its target. Proximity fuses are designed for elusive military targets such as aircraft and missiles, as well as ships at sea and ground forces.
Additionally, the setting can be changed any number of times without causing damage to the fuze. The four engravings around the circumference of metal housing of the fuze have the following meanings for detonation height: [5] Engravings for fuze settings. PRX = Proximity air burst between 3 and 13 feet; NSB = Near surface burst between 0 and 3 feet
Sensor fuzes can be considered smart proximity fuzes. Initial developments were the United States 'Seek and Destroy Armour' (SADARM) in the 1980s using sub-munitions ejected from a 203 mm (8.0 in) carrier shell. Later European developments, BONUS and SMArt 155, are 155 mm (6.1 in) calibre due to advances in electronics. These sensor fuzes ...
The technique involves a howitzer firing a high explosive (HE) shell using a mechanical time–super quick (MTSQ) artillery fuze set to cause an airburst over a target in very close proximity to the firing gun's position. Set properly, the shell would detonate approximately 10 meters (33 feet) above the ground at ranges of 200 to 1,000 m (660 ...
In comparison, the British QF 3.7-inch (94 mm) Mark III fired a 13 kg (29 lb) projectile at 790 m/s (2,600 ft/s) to an effective ceiling of 10,600 meters (34,800 ft), the American 90 mm M1 fired a 10 kg (22 lb) shell at 820 m/s (2,700 ft/s) to the same height, the Soviet 85 mm air defense gun M1939 (52-K) fired a 9.2 kg (20 lb) [44] projectile ...
In an explosive, pyrotechnic device, or military munition, a fuse (or fuze) is the part of the device that initiates function. In common usage, the word fuse is used indiscriminately. In common usage, the word fuse is used indiscriminately.
the height: 2,51 m. ... high explosive, proximity fuze (HEVT) References Literature. F.M. von Senger und Etterlin: Taschenbuch der Panzer 1983 ...
It was calculated that a fuze which would explode a projectile near a plane or at some height above a target on the surface would increase lethality. Diamond, through his vast knowledge in the field of electronics, contributed greatly to the fundamental concept and design of proximity fuzes. He held 16 patents for electronics-related inventions.