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.


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