Description
Proximity Fuze M732A2 is used with standard and rocket-assisted high-explosive 105mm cartridges and 155mm and 8-inch projectiles. The fuze was designed as an improvement over the M732 Fuze for compatibility with RAP rounds and top zone ballistic environments.
Fuze M732A2 is a continuous-wave, radio doppler proximity fuze capable of being set for proximity airburst or PD. Externally, the fuze has a plastic nose cone crimped to an aluminum collar, which threads onto a steel fuze sleeve. The collar retains a movable aluminum setting ring which has an index mark, The fuze sleeve is marked with contrasting black paint in 2 second increments in the range of 4 to 156 seconds and a PD mark. Time settings are used in the proximity mode only.
The fuze is set by simultaneously depressing two locking push buttons (within ogive) and rotating the setting ring to align the index mark to the desired mark on the sleeve (the fuze is shipped with index mark set on PD mark). When push buttons are released, the setting ring is locked in place.
Internally, the fuze consists of four modular subassemblies: the proximity detector, the timer and setting ring assembly the ("minor redesigned" PS115) power supply assembly, and and S&A device with associated explosive train.
Functioning
No information about functioning.
Hazardous Components
No information about hazardous components.
See Also
Source(s)
TM 43-0001-28, Artillery Ammunition (chg 11, 2003)
