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UR-77 Meteorit



Overview


UR-77 Meteorit

UR-77 Meteorit with launcher in raised position.
Source: www.mil.ru - © GNU Attribution Share Alike license

Origin
Soviet Union
Type
Mine warfare vehicle
Entered service
1978
Status
In service
Development
1970's
Developer
Soviet Union
Production
1977 - ?
Producer
Soviet Union
Number produced
At least dozens
Designations
UR / Ustanovka Razminirovaniya
Russian for "mine clearance system"
Meteorit (nickname)
Russian for "meteorite"
Notable users
Soviet Union
Russia

Description


Introduction

The UR-77 is a mine warfare vehicle of Soviet origin. It was developed in the 1970's to help engineers create paths through a minefield quickly. The main role is to maintain the momentum of armored and mechanized forces during an offensive.

Design

The UR-77 is based on the tracked chassis of the 2S1 Gvozdika self-propelled howitzer. This chassis in turn is based on the MT-LB multipurpose tracked carrier. The UR-77 has a roof mounted launcher for two line charges. These are launched by rocket over a minefield and filled with explosives. The overpressure of their explosion detonates many types of mines, and dislodges unaffected mines.

Firepower

The UR-77 operated near the frontline, but is not intended to participate in combat. Mechanized forces and artillery are to provide cover fire when operating near enemy positions. UR-77 clears a 6 meter wide corridor which is 90 meters long using one of its two line charges. In Syria the UR-77 has reportedly been used in urban terrain.

Protection

The UR-77 is operated from under armor protection. The steel armor protects the crew from small arms fire and shell splinters. Although intended to operate near minefields, the UR-77 does not feature protection against mines.

Mobility

The tracked chassis provides good all terrain mobility. This allows the UR-77 to keep up with mechanized forces. The 300 hp V8 diesel engine allows for a maximum road speed of 60 km/h. The UR-77 is amphibious and can traverse calm water at a rather low speed of 4 km/h.

Users

In Soviet service the UR-77 supplemented, and eventually replaced, the earlier UR-67. UR-77 was exported in limited numbers. The UR-77 remains in Russian service today.

Details


Facts UR-77
General
Origin
Soviet Union
Type
Mine clearance vehicle
Crew
2 (driver, operator)
Dimensions
Weight
15.5 t
Length
7.86 m
Width
2.85 m
Height
2.53 m (travel configuration)
Line charge system
MICLIC launcher
Twin launcher
MICLIC types
UZP-77, UZ-67 , ZRSCh
Cleared passage
90 x 6 m per line charge
Time to launch
3 to 5 minutes per line charge
Time to reload
30 to 40 minutes
Chassis
Chassis type
Tracked chassis, 7 roadwheels
Layout
Drive sprocket front, idler rear
Ground pressure
0.48 kg/cm²
Track width
0.35 m
Suspension
Torsion bar
Automotive
Engine
YaMZ-238N V8 diesel
Power output
300 hp
Transmission
Manual, 5 forward, 1 reverse
Fuel
550 L
Mobility
Speed
62 km/h on road
5 km/h afloat
Range
500 km
Power to weight ratio
19.3 hp/t
Obstacle crossing
Ground clearance
0.4 m
Wall
0.7 m
Trench
2.2 m
Gradient
35°
Fording
Amphibious
Protection
Armor type
Steel
Armor thickness
Up to 20 mm
NBC system
Yes
Smoke system
No

Media


Related articles


2S1 Gvozdika

The UR-77 is based on a modified 2S1 chassis. In turn the chassis of the 2S1 was derived from the MT-LB.