UR-77

from Wikipedia, the free encyclopedia
UR-77
A Russian UR-77 demining vehicle in 2016

A Russian UR-77 demining vehicle in 2016

General properties
crew 2
length 7.86 m
width 2.85 m
height 2.535 m (in marching configuration)
Dimensions 15.5 tons (total mass)
Armor and armament
Armor 20 mm ( armored steel )
Main armament unarmed
Secondary armament unarmed
agility
drive V8 diesel engine JaMS-238N
300 PS (221 kW)
suspension Torsion bar
Top speed 60 km / h (road), 4 km / h (in water)
Power / weight 14.26 W kg −1
Range 600 km

The UR-77 ( Russian У становка р азминирования- 77 , short: УР-77 “Метеорит” ; German “mine clearance system 77, UR-77 'meteorite”) is a military mine clearance system from Soviet production that was developed in the 1970s . It replaced the UR-67 system from 1977 .

Mission concept

A UR-77 firing a mine clearing cord

The UR-77 uses the pyrotechnic mine clearance method , which means that the clearance of obstacles and demining is carried out using rocket-propelled "mine-clearing cords". For the task, the turret was removed and replaced with a new turret construction. For mine clearing, the tank has two explosive “mine clearing cords” on the tower roof and various attachments for the front of the tub. One charge wipes out a mined area measuring 90 × 6 meters. With the UR-77, clearing cords of the types US-67 ( Russian УЗ-67 ), USP-77 ( УЗП-77 ) and SRSCH ( ЗРШ ) can be used, which essentially differ in the length of the cord, the type of explosive used and the mass. The crew is two people. In the civil war in Syria and the Ukraine War was the UR-77 used in an urban area several reported.

Base vehicle

The UR-77 is based on the chassis of the 2S1 self-propelled howitzer, which is an extended version of the MT-LBu chain chassis. The total mass with a full load is 15.5  tons with armor of 20 millimeters of armor steel. The vehicle is driven by a JaMS-238N , a V8 diesel engine with direct injection from the Russian manufacturer Jaroslawski Motorny Sawod . With a displacement of 14,866 cm³, the engine produces an output of 300 hp (221 kW) at 2100 rpm. The gearbox in the front of the vehicle is driven via the main clutch and a short cardan shaft .

Users

Web links

Commons : UR-77  - collection of images, videos and audio files

Individual evidence

  1. a b c d Инженерная техника Советской Армии (семидесятые годы XX -начало XXI века) Установка разминировани (Russian) Разминировани 77
  2. a b c Spotted-Al Assad's brutal mine-clearing tank into Syria - UR-77 meteorite Appears on the frontline (English)
  3. Dangerous objects: the base of an army engineering unit of Russian invaders in Donetsk (English)
  4. lenta.ru: Взлетно-осадная полоса (Russian)