Mortier 120mm Raye Tracte Modele F1

The MO-120 RT-61 (factory designator) or MO-120-RT is a heavy mortar of French origin. It was designed by Thomson-Brandt as the successor to the MO-120 AM-50. The RT in the designator stands for rayé, tracté, which means rifled, towed.

The RT-61 is currently used by the French Army (where it is known as RT F1 or Mortier de 120mm Rayé Tracté Modèle F1—"120 mm rifled towed mortar, model F1"), and is produced under licence by Germany, Italy, Belgium, the Netherlands, Brazil, Japan and Turkey (as HY-12 "Tosam"). The MO-120 RT-61 is issued to artillery units, where it augments the 155 mm towed artillery.

In French service, this weapon is normally towed by the VTM 120 (Véhicule Tracteur Mortier de 120 mm), a wheeled armored vehicle that is a derivative of the VAB 4x4 series of armored personnel carrier. Towing is accomplished by a towing hitch that is screwed onto the muzzle of the weapon. The VTM 120 also carries 70 rounds for the mortar and offers basic ballistic protection from small arms fire and shrapnel for the crew. The RT-61 can also be towed by the AMX-10 TM (Tracteur de Mortier), which is a version of the AMX-10P tracked APC. The Japan Ground Self-Defense Force have a self-propelled version of the RT-61 with 50 rounds, the Type 96 SPM.

The mortars, which originally equipped infantry regiments, have now all been transferred to the artillery regiments, where they augment the 155 mm towed artillery. Currently, there are eight 120 mm mortars assigned to each French Régiment d'Artillerie - although they are not deployed during peacetime.

The RT-61 uses standard NATO rounds as well as the specially designed PR-14 (HE) and the PRPA (HERA). The weapon can be fired either by dropping the round down the tube (after aligning of the rifling bands) resulting in an automatic firing once the bomb hits the tube base, or by a controlled firing by dropping the bomb down the tube and pulling on a lanyard that will in turn set off the triggering mechanism in the base of the tube.

Manufacturers other than Thomson-Brandt as mentioned above include Thomson-CSF/Daimler Benz Aerospace (France/Germany(?)), Hotchkiss Brandt (Netherlands) as the "HB Rayé" and under license by MKEK in Turkey.

Mortier 120mm Raye Tracte Modele F1
Class Manportable
Type Mortars
Manufacturer Daimler-Benz
Origin France
Country Name Origin Year
France 1980
Country Name Operational Year Retirement Year
Belgium View
Brazil View
Colombia View
Cyprus View
Djibouti View
France View
France View
India View
Israel View
Italy View
Japan View
Jordan View
Netherlands View
Saudi Arabia View
Tunisia View
Turkey (Ottoman Empire) View
United States of America View
Azerbaijan View
ManufacturerName Production From Production To Quantity
Daimler-Benz View

Type Heavy mortar
Place of origin France
Service history
In service French Army
Used by France, among others (see below)
Wars Gulf War
War in Afghanistan
Operation Serval
Production history
Designer Thomson-Brandt
Manufacturer Thomson-Brandt (France), Thomson-CSF/Daimler Benz Aerospace (Germany), Hotchkiss Brandt (Netherlands), MKEK (Turkey)
Weight 582 kg (1,283 lb)
Barrel length 280 cm (9 ft 2 in)
Crew 4 gunners, 2 vehicle crew
Shell 18.7 kg (41 lb)
Calibre 120 mm (4.7 in) NATO mortar round
Carriage wheeled
Elevation 30–85°
Traverse ±14° from centreline
Rate of fire 6 to 10 rpm
Effective firing range 8,140 m (8,900 yd) with standard projectile
12,850 m (14,050 yd) with rocket projectile

End notes