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ResheFuze MR787

Mortar Electronic Proximity Fuze

The MR787 is a Radio Proximity fuze that is widely compatible
with all calibers. This safe, reliable product has a delayed
transmission. Utilizing the Doppler Effect, the fuze is designed
to initiate the warhead at the optimum height above the target
providing maximum effectiveness of the mortar ammunition.

TECHNICAL SPECIFICATIONS
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COMPATIBILITY

To be used with all types of HE mortar bombs, with calibers of: 60mm, 81mm, 82mm and 120mm.

OPERATION MODES

Operated by switch Proximity (PRX): Detonates warhead at optimal height above target. Point Detonation (PD): Detonates warhead upon impact with target.

TIME DELAY SETTING

N\A

SETTING SYSTEM

N\A

ACCURACY

N\A

POWER SUPPLY

Air driven alternator.

ARMING

By two arming mechanisms: Set back force: Acceleration of 400g minimum, for 1 m/sec duration minimum. Sustained air flow: 30 m/sec minimum.

BACK-UP

N\A

FUZE INITIATION

N\A

SAFETY

Mis-sequencing: Prevents arming the fuze whenever arming condition of “air flow” precedes arming condition of “set back”. Arming distance: 70m minimum from muzzle. Double loading: The fuze will not function in bore at a double loading event. Shorted electric detonator: The electric detonator is shortened until arming. Safety pull wire: No use of safety pull wire.

HUMAN ENGINEERING

N\A

EXPLOSIVE OUTPUT

Booster pellet: 7g CH-6.

TEMPERATURE LIMITS

Firing: From -40°c to +63°c Storage: From -46°c to +71°c

PHYSICAL DESCRIPTION

Total length: 95.5mm Cross section diameter: 51.1mm Intusion depth: 27.5mm Thread size: 1.5"-12UNF-1A Weight: 0.3kg

MILITARY STANDARDS

MIL-STD-331: Environmental and performance tests for fuze and fuze components. MIL-STD-333: Fuze, projectile and accessory contours. MIL-STD-1316: Fuze design, safety criteria. STANAG 4187: Fuzing system - safety design requirements.

HEIGHT OF BURST

PRX Mode (standard factory set)- 2.5 above target for 60/81/82mm. 4.0m above target for 120mm. Other heights of burst upon request.

IMMUNITY

N\A

POINT DETONATING

N\A
Mortar Electronic Reshef Fuzes