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FUZE, PROXIMITY: M514, M514B1, M514A1

FUZE, PROXIMITY: M514, M514B1, M514A1

Proximity Fuze
Description:

These fuzes are of the adjustable delayed-arming type which are activated by the receipt of reflected radio transmissions emitted from the fuze upon target approach. The fuzes contain radio transmitters, antennas and receivers and are energized upon firing. Certain models of this fuze provide for impact functioning (PD action) or the option for a PD setting, but this characteristic is not common to all models. The fuzes have a windshield/nose cone of plastic attached to a metal setting ring. The ring and fuze sleeve are made of steel or aluminum. The shoulder of the sleeve is marked with a PD

Fuzes are normally set to the calculated time of flight in seconds of the projectile, unless point detonation is desired. Setback from weapon firing starts the arming cycle by releasing the timing mechanism and initiating the power supply. The fuze is armed for point detonation after 3 seconds of flight. The proximity element becomes armed within 3 seconds of set time. When any part of the radio wave front is reflected to the fuze from the target, an interaction or doppler signal occurs between the reflected and transmitted wave. When the doppler signal reaches a predetermined amplitude, an electronic switch activates the explosive train at an optimum distance from the target.

If for any reason the proximity mode does not function, the projectile will detonate on impact.

Difference Between Models:

Feature

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