COMPONENTS AND PARTS

Fuzes for 122m rockets

IMPACT FUZE:  MRV – U;  MRV – UBM

                        THE MRV-U IS A IMPACT FUZE FOR THE 122 MM ROCKET.

                        THE MRV-UBM IS A IMPACT FUZE FOR THE 122 MM EXTENDED RANGE ROCKET.

                                                                                     MRV-U                 MRV-UBM

            -     LENGTH OF FUZE:              195 mm.                      200-204

-          WEIGHT OF FUZE:                 710 gr.                        750 gr.

MODE OF WORKING

-          ”00” – INSTANTANEOUS ( NONDELAY)

-          ”0” – WITH SHORT – DELAY

-          ”+” – WITH LONG – DELALY

-          SAFETY MUZZLE DISTANCE: 150 – 400 m

MULTIPLE FUNCTIONS  FUZE – MFF-2T

(TIME, PROXIMITY OR IMPACT)

WITH PROGRAMMER

The fuze is meant to equip reactive ammunition cal. 122 mm with explosive warhead, or with

preformed elements, that are fired with launcher APRA–40,   BM–21, 122 LAROM, RM-70.

PHYSICAL FEATURES

Feature

Condition

Fuse weight 1170 ± 50 g
Fuse length 270 ÷ 274 mm, with detonator

252 ÷ 255 mm, with petard

Length of part buried in the ogive 53.01 ÷ 54.39 mm, with detonator

35 ÷ 38 mm, with petard

Thread to be mounted in the ogive Sp. M 44.96 x 2
Maxim diameter  63.8-0,4 mm

PERFORMANCE FEATURES

Feature

Condition

Operation mode Time, proximity or impact
Electronic time function minim 99 %
Proximity function minim 95 %
minim 98 %
Adjustable setting time 5.5 s ÷ 199.9 s, with increment of 0.1s, in mode Time

6 s ÷ 199 s, with increment of 1s, in mode Proximity

Safety distance from the barrel minim 150 m
Performance heights h = 400 ÷ 700 m at time operation (nominal value 400 m)

h = 4 ÷ 30 m at proximity operation;

Operation mode setting The programmer provides operation mode selection and performs setting, resetting and set time checking