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.
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ResheFuze MR787
Mortar Electronic Proximity Fuze
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
