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M-77 Oganj



Overview


M-77 Oganj

M-77 Oganj on display in 2011. Note the M87 heavy machine gun on the cab roof.
Source: Srdan Popovic - © GNU Attribution Share Alike license

Origin
Yugoslavia
Type
Multiple rocket launcher
Entered service
1977
Status
In service
Development
1968 -1975
Developer
Yugoslavia - Military Technical Institute Belgrade
Production
1977 - ?
Producer
Yugoslavia - Bratstvo Novi Travnik
Number produced
Over 95
Designations
Oganj
Serbian for "fire"
YMRL-32
NATO reporting name, Yugoslav MRL with 32 tubes

Description


Introduction

The M-77 Oganj is a multiple rocket launch system of Yugoslav origin. It was developed from the late 1960's to the mid 1970's. The name M-77 refers to the year of adoption. The M-77 Oganj can be considered the Yugoslav counterpart to the Soviet BM-21 Grad and Czechoslovak RM-70. Unlike the RM-70 the ammunition is not interchangeable with the BM-21.

Layout

The M-77 Oganj is based on a 6x6 tactical truck and features a 32 barrel launcher at the rear. In a similar fashion as the Czechoslovak RM-70 a second load of 32 rockets are stored between the cab and the launcher. This allows for a fast second salvo in about 3 minutes after the first salvo. The launcher can be covered by tarpaulin, disguising the M-77 Oganj as a regular truck when on the move.

Firepower

The M-77 Oganj fires 128mm caliber artillery rockets. These feature high explosive warheads. Although the caliber is similar to the M-63 Plamen, the rockets are not interchangeable. The M-77 rockets are longer and carry more fuel. This results in a longer range of 20.6 km. For self-defense a 12.7mm M87 heavy machine gun is fitted on top of the cabin.

Mobility

The M-77 Oganj is based on the FAP 2026 6x6 tactical truck. This provides a good all terrain performance. The Mercedes-Benz diesel engine allows for a maximum speed of 80 km/h on roads.

Users

The M-77 Oganj was adopted by the military of Yugoslavia. At least 95 vehicles have been produced. It remains in use with various sucessor states. Serbia offers several types of modernization for the M-77 Oganj. These range from improved ammunition to a modular design that can fire several different kinds of artillery rockets.

Media


Details


Facts M-77 Oganj
General
Origin
Yugoslavia
Type
Multiple rocket launcher
Crew
5
Dimensions
Weight
22.4 t combat load
17.8 t empty
Length
8.4 m
Width
2.49 m
Height
3.1 m
Main armament
Type
128mm M-77 artillery rocket
Mount
32 barrel launcher on turntable
Ammunition
64 rockets, 32 ready to fire
Elevation
-10 to +50 degrees, manual
Traverse
185 degrees, manual
Max range
20.6 km
Rate of fire
All 32 rockets can be launched in 26 seconds
Secondary armament
Type
12.7mm M87 heavy machine gun
Mount
Pintle mount on cab roof
Mobility
Chassis
6x6
Max speed
80 km/h on roads