Hydrostatic Bomb Fuzes

Fuze, Hydrostatic. A fuze employed with depth bombs or charges to cause underwater detonation at a predetermined depth. Initiation is caused by increasing ambient water pressure... 

Fuze) (p 51) one CLDNF (Clockwork Long-Delay Nose Fuze) (p 52) one CLDTF (Clockwork Long-Delay Tail Fuze) (p 53) one Tail Fuze for Hollow Charge Bomb (p 56) one Hydrostatic Tail Fuze— Grand Daddy (p 57) one MINF- Orphan (p 58) and one Mechanical Anti-Disturbance Fuze- Manzolini ... 

They are usually loaded with HBX, HBX-1 or TNT (70% of the total wt of the bomb) and provided with a hydrostatic tail fuze that functions at a predetermined depth. A nose fuze that functions with instantaneous action on impact may be used to produce a surface burst, when the bomb is used against a surface target(Refs 7,9 15) (See Fig)... 

Hydrostatic fuzes act under the influence of water pressure to explode a bomb at a predetermined depth when used against submarines or other underwater targets... 

Fig 4-23 BOMB TAIL HYDROSTATIC FUZE, AN-Mk230 (Comparison of Boosters)... 

Italian Tail Fuzes, pp 55-56 Type for use in shaped-charge bomb and Hydrostatic Type "Grand Daddy"... 

Fig 4-21 on p D997 for Nose VT Fuze, AN-M166 Bomb Hydrostatic Fuzes, such as shown in ... 

There is also in some bombs, the transverse fuze which is fitted into a cavity of the body at right angles to its axis. The latter type of fuze, when used in depth bombs, is activated by pressure of water(hydrostatic, also called thwartship fuze)... 

The ship s sonar provides submarine position data to a predictor which computes mortar aiming position. The triple-barrelled mortar fires a pattern of three mortar bombs which are programmed to give a three dimensional expl pattern ahead of the target. The bombs can be set to expld at variable depths using hydrostatic fuzes, and are also fitted with delayed action fuzes... 

Fig 4-22 on p D99 8c Fig 4-23 on p D1000 for Tail Hydrostatic Fuze, AN-Mk2 3 0 Bomb Nonstandardized Fuzes, such as shown in Fig 4-24 on p D1001 tor Nose MT Fuze, Ml 29 Fig 4-25 on p D1002 for Nose MT Fuze Ml 30 Fig 4-26 on p D1004 for Nose MT Fuze, M131A1 Bomb Pyrotechnic Fuzes, such as shown in ... 

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