M-77 Oganj

The M-77 Oganj is a 128mm self-propelled multiple rocket launcher developed in the former Yugoslavia. NATO designation is the YMRL-32

M-77 Oganj
M77 Oganj 1.jpg
M-77 Oganj of the Serbian Army
TypeSelf-propelled multiple rocket launcher
Place of originYugoslavia
Service history
In service1977–present
WarsYugoslav Wars
Production history
DesignerMilitary Technical Institute Belgrade  Serbia
ManufacturerBratstvo Novi Travnik Bosnia and Herzegovina, Krusik Valjevo Serbia , IMK 14. oktobar Kruševac Serbia
Mass22.4 tonnes (49,383 lbs)
Length8.4 m (27 ft 7 in)
Width2.49 m (8 ft 2 in)
Height3.1 m (10 ft 2 in)

CartridgeLength: 2.6 m (8 ft 6 in)
Weight: 65 kg (143 lb)
Warhead: 20 kg (44 lb)
Caliber128 mm (5.0 in)
Maximum firing range20 km (12 mi)

NSV or M2 Browning machine gun
Maximum speed 80 km/h (50 mph)
Rocket launcher M-77 Oganj enclosed by its canvas.


Development started in 1968. Prof. Obrad Vucurević, Mechanical Engineer at the time, and Chief operating officer of the Artillery department of Military Technical Institute Belgrade, developed and managed construction and production of the M-77 Oganj.[1]

The 6 pre-serial production version, based on a FAP 2220 6x6 truck, was shown to the public for the first time in 1975. Serial production started two years later. The M-77 is mounted on FAP 2026 BDS/A 6x6 truck bed. The rocket system is placed on the back of the platform with 32 128mm launch tubes capable of reaching targets 20,600 metres away. The crew consists of five men.[2] In 1994 Serbia developed new version called Oganj C with designation M94. Oganj C(M94) could fire two type of rockets M91 (cluster-type warhead with 40 submunition grenades) and M77 (HE warhead). Other feature was design that it is caring reload rocket pack of 32 additional rockets that allows the launcher to be reloaded within 3 minutes for second salvo.

Unique featuresEdit

One of unique features of Oganj M-77 is the movable canvas that allows the vehicle to be easy masked, and become very hard to be spotted by the enemy until it is in combat position and ready to fire. In that way it can be used to mislead enemy and is an effective way of Military deception. Originally invented in 1977 by Military Technical Institute Belgrade, the system saw later use in China in the Type 90A Type 90B and PR50 MLRS.

Modular modernized Oganj.


Military Technical Institute Belgrade on demand from Serbia army has produced modernization program for Oganj M-77. Fixed barrels will be replaced with container system similar like LRSVM Morava and it will include modern navigation and fire control system. Containers will allow Oganj to use many different rockets including 107mm, Plamen 128mm, Grad 122mm and Oganj 128mm. As part of modernization new rocket 128mm with range of 50 km and better CEP will be produced by Krušik Valjevo.

There is two versions of modernized M-77 launcher:

  • 1.Standard chassis with canvas
  • 2.Version with armored cabin for close to battlefront action
Oganj modular with armored cabin in Partner 2017 military fair


Map with M-77 operators in blue and former operators in red.

Current operatorsEdit

Former operatorsEdit

See alsoEdit

Related developmentEdit

Comparable systemsEdit

Compatible withEdit

  • LRSVM Morava New developed MLRS for Serbia Army and export intended to replace or complement Oganj M-77, Plamen M-63 and Grad BM-21


  1. ^ Obrad Vucurović Archived March 2, 2009, at the Wayback Machine
  2. ^ M-77 at FAS.org
  3. ^ Administrator. "Bosnia Herzegovina army land ground armed defense forces military equipment armored vehicle UK | Bosnia Herzegovina army land ground forces UK | East Europe UK". www.armyrecognition.com. Retrieved 2018-04-01.
  4. ^ Military Balance 2016. International Institute for Strategic Studies. Arundel House, Temple Place, London, UK. 9 February 2016. ISBN 978-1-85743-835-2. OCLC 920018706.CS1 maint: others (link)