The MR797 is an Electronic Point Detonating Fuze that is
widely compatible with all calibers. This reliable fuze requires
no safety pull wire and meets all safety requirements.


ResheFuze MR797
Mortar Electronic Point Detonating 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
Point detonating (PD): Detonates warhead on impact with target.
Delay: Detonates warhead after 50 milliseconds
from 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: Acceleration of 400g minimum, for a duration
of 1 millisecond minimum.
Air Speed: of 30 m/s minimum.
BACK-UP
N\A
FUZE INITIATION
N\A
SAFETY
Miss-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 in at 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: 95.1mm
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
N\A
IMMUNITY
N\A
POINT DETONATING
N\A
Mortar Electronic Reshef Fuzes