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Proximity fuse MK53 removed from shell, circa 1950s. 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.
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 ...
M734 fuze cross section Amplifier (top) and oscillator. The M734 multi-option fuze [1] is a rangefinder and collision detection system used on 60 mm, 81 mm, and 120 mm mortar shells as a trigger to detonate the shells at the most damaging heights of burst when combating four types of battlefield threats:
Emma Unson Rotor (May 18, 1913 – September 6, 1998) was a Filipino-American physicist and mathematician whose pioneering work during World War II significantly contributed to the development of the proximity fuse, a crucial advancement in military technology that played a critical role in the Allied victory of World War II.
An aerial shell loaded with many such pieces results in a myriad of pieces flying and sparking high in the air. A spolette is a delay fuse consisting of a hollow wooden dowel or a paper tube rammed full of black powder. A spolette is glued into the wall of a fireworks shell and ignited by the lift charge that launches the shell into the air.
The WGU-59/B mid-body guidance unit is equipped with DASALS seeker optics which deploy 0.5 seconds after launch. They are attached in between the Mk 66 Mod 4 rocket motor and a warhead and fuze, which increases length by 18.5 in (47 cm) and weight by 9 lb (4.1 kg) over the legacy Hydra system. [5]
It was released as early access on March 11, 2015 on Steam for PC. On March 8, 2019 it was released on Xbox One [4] [5] and on September 13 of the same year on PlayStation 4. [6]
The simplest form of artillery contact fuze is a soft metal nose to the shell, filled with a fulminating explosive such as lead azide. An example is the British World War II Fuze, Percussion, D.A., No. 233 [ 2 ] ('direct action') The primary explosive transmits its detonation to an explosive booster within the fuze, then in turn to the main ...