Cold War Romanian Armor Modern Romanian Armor


Socialist Republic of Romania (1984-1990)
Medium Artillery Tractor – 200+ Built

The TMA-83 (Tractor Mijlociu de Artilerie, Eng: Medium Artillery Tractor) was a Romanian medium artillery tractor meant to replace Soviet artillery tractors in service, but also work side by side with Soviet counterparts, namely the ATS-59 and ATS-59G. However, due to mechanical problems with the transmission, it was seen as inferior to its Soviet counterparts and was quickly retired.


Throughout the 1950s, of the Romanian military, which, up until then, was just junk and leftovers from the Second World War, underwent a radical restructuring. During this period, various Soviet artillery pieces were purchased, including, among others the 122 mm A-19 and 152 mm ML-20 howitzers. However, by the 1970s, after the deterioration in the relationship between Romania and the Soviet Union, the country set out to build its own artillery pieces. Work began in the late-1970s and. By the 1980s, several howitzers had been created, including the 130 mm Ob.Md.1982, 152 mm Ob.Md.1981 and 152 mm Ob.Md.1985, after licenses from China and USSR. During the 1970s, Romania also purchased newer artillery tractors from the Soviet Union in the form of the ATS-59 and ATS-59G. Previously, artillery prime movers used by Romania were the light AT-L and heavy AT-S 712 and trucks, such as the ZiS-150, which were all growing increasingly obsolete and worn out.

Soviet ATS-59G at the Romanian military museum Ferdinand I.
Source: Author’s collection

In the mid-1970s, the program to develop domestic artillery tractors based on proven, existing technology began. Thus, the Institutul de Cercetare și Inginerie Tehnologică al Armatei din București (Eng: the Army Development and Technological Engineering Institute in Bucharest), or ICITA, began work on a light artillery tractor based on the Soviet AT-L. The result was the TAR-76, which entered service in 1977, and was intended to tow 122 mm and lower caliber weapons. In 1978, ICITA designed a medium artillery tractor, known as the TMA-79. It used components, such as the engine and running gear, from the ATS-59, but the transmission came from the AT-S 712. One prototype was built at the 102nd Truck and Tank Maintenance Base (nowadays 102nd Maintenance Battalion) in Bucov, in 1979. But, after testing, the vehicle was found to be mechanically unreliable. Thus, the mechanics were reworked, and the vehicle was renamed to TMA-83, and entered production at the Mizil Mechanical Factory in 1984. The first vehicles were delivered to units in 1985.

The TAR-76 light artillery tractor exhibited at the National Military History Museum Ferdinand I in Bucharest. Source: Maquetland


Originally, the TMA-79 medium artillery tractor was intended to be a larger version of the TAR-76 with a 4-door cabin. It used the main components of the Soviet ATS-59, but the conversion was made by switching the hull around (the final drive and sprocket were now in the rear) moving the engine to the front, splitting the frontal section of the cabin in half. Thus, a radiator and air intake were added to the front of the cabin. The main advantage of this was that it now had room for 8 men, including the driver, their personal weapons, food rations, radio, and personal gear. The driver and vehicle commander sat on individual seats on opposite sides of the engine compartment, while the remaining 6 soldiers sat on benches facing each other. Additionally, the cabin was thermally insulated with polystyrene. On the roof of the cabin, 2 ports were placed, one for the passenger to the right of the engine (usually commander) and one to the passenger behind the driver. Unfortunately, the conversion seems to have been complex, and while it gave advantages even over the ATS-59G, only 1 has been confirmed to have been built. The larger cab did not compromise the area of the flatbed, which was the same as on the ATS-59, essentially using what was ‘dead space’ on the Soviet counterpart. The engine was the D 199-12 V, a direct-injection V-12 diesel with a maximum power of 360 hp at 2,300 rpm was used on the TMA-79. Its maximum torque was 1,280 Nm at 1,600 rpm. This engine was produced at the Timpuri Noi factory, on the outskirts of Bucharest. The vehicle was plagued by a series of mechanical issues. Moving the sprocket, final drive, and entire power transmission to the back, as well as moving the engine and transmission forwards, caused a series of mechanical issues, mostly with the AT-S 712 transmission and the clutch.

One of the few photos of a TMA-79 with the 4-door cab and front mounted engine. Note the rear drive sprocket, as opposed to the frontal one on the TMA-83.
Source: Artileria Română în Date şi Imagini, colorized by Smargd123

In the 1980s, instead of fixing the issues found on the TMA-79, it was decided that it would be faster and cheaper to simply use the readily available chassis found on the ATS-59. As it had the engine mounted in the center of the hull, above the 2nd and 3rd roadwheels, the cab was shortened to a 2-door one, with just 5 seats inside. The front of the cab was also redesigned, with a simple flat face. Another major change was the swapping out of the engine. The new tractor was called the TMA-83.


The TMA-83 consisted of a traditional layout, with the cabin in the front of the tracked hull, engine bay in the center and the flatbed in the rear.


As the chassis of the ATS-59 was used, the running gear and lower hull were mostly identical. The engine placement was the same as on the original Soviet platforms, in-between the cabin and flatbed. The running gear consisted of five roadwheels per side borrowed from the ATS-59 and ATS-59G, as well as the frontal sprocket and rear idler. The wheels were sprung by torsion bars and the front and rear wheels had hydraulic bump stops.

On the flatbed, 4 men could be transported and the necessary ammunition for the towed artillery piece. There was an alarm installed in the cab for notifying the driver if the system towed had detached by accident. The empty vehicle weighed 15.8 tonnes. Maximum weight on the flatbed was 4 tonnes, while maximum towing weight was 15 tonnes and maximum winching weight was 12 tonnes.

TMA-83 at the Arsenal Park. Note the smaller 2-door cab and centrally-mounted engine, as on the ATS-59. This vehicle also has a dozer blade from an ATS-59G.
Source: Flickr


Crucially, the TMA-83 had a two-door cabin which could house eight men on two rows, four men on each bench, the same amount as on the TMA-79, despite the smaller size. The front of the cabin had a flat, simple face, with 3 horizontal outward grooves, above which were three windshields, with two windscreen wipers. Two roof hatches were given to the front-right passenger, usually the vehicle’s commander, and the left-rear passenger. These would be used for observation, guidance, communications during maneuvers, for self-defense using personal weapons and evacuation. At the front of the cabin, a special dozer blade could be mounted. The driver, on the left side of the cabin, would control the vehicle with 2 tillers, which in turn actuated the two clutch multidisk planetary brakes for the final drive. To the right of the driver, on the dashboard ,were the radio and climate control stations. A spotlight was mounted on the driver side, above the door.

Side cutout view of the TMA-83.
Source: TMA-83 manual
Front view of the TMA-83
Source: TMA-83 Manual


Compared to the TMA-79, the TMA-83 had the V2-350T engine, a four stroke diesel V-12 outputting 350 hp at 2,000 rpm. Why this was done is unclear. However, since this engine seems to be heavily based on the Soviet 300 hp A650 V-12 found on the ATS-59G, it is likely more reliable than the previous Timpuri Noi engine.

Side cutout view of the V-2-350T.
Source: TMA-83 Manual

The centrally mounted engine had its own designated bay, with the air filters and 24V batteries mounted above.

The gearbox was of the planetary disk type with 5 forward and 1 reverse gears. Transmission between the engine and gearbox consisted of 2 axles, one of which was connected to a hydrostatic pump, which transferred power to the cable winch, and the other axle was connected to the final drive. A preheating system was installed for easier starting of the engine during low temperatures. In case of failures, a manual starter motor had been included. It allowed for one person to start the engine by hand cranking the camshaft at 60 rpm, which was converted into the 200 rpm necessary for starting the engine. Maximum speed was 45 km/h, however, this decreased to 44 km/h when loaded with crew, ammunition, and towing an artillery piece, and further lowered to 40 km/h when fully loaded and towing.

In total, three fuel tanks were fitted to the vehicle for a total fuel capacity of 860 l, offering an operating range of 550 km.

The tractor was also equipped with a hydrostatic winch with a maximum pulling force of 10,000 kg and an effective cable range of 55 m.


As it was intended to be the mainstay for the Romanian artillery tractor park, a few variants were thought out and made on the base of the TMA-83. These were designed and built at the 102nd Maintenance Base. However, due to the unreliability of their base chassis and the unfortunate political time when these vehicles were created, very few were made.


Developed in the mid-1980s, the MHS-125 (Macara Hidraulică pe Senile, Eng: Tracked Hydraulic Crane) was a tracked crane that used the chassis of the TMA-83. The cabin was changed to a smaller glass one for better vision when operating the crane. The engine had also been moved to the back for more operational room for the crane. A total of 4 telescopic arms were mounted on each corner of the chassis for stabilization during lifting operations. The crane itself was a HT-125, built at the Timișoara Mechanical Factory, which was mostly used for civilian vehicles. It had a maximum payload of 12.5 tonnes when the arm was retracted and elevated at 60°, though the range was just 2.25 m. The maximum range was of 11.2 m, achieved when the arm was fully extended and angled at 0°, although the payload decreased to just 1.8 tonnes. Of the few made, some are still used by units, but most have been sold to private collectors.

MHS-125 mobile crane. Note the cabin and rear mounted engine.
Source: Unknown


An attempt from 1987 to make a domestic trench digging machine, the MST-802 (Mașină de Săpat Tranșee, Eng: Machine for Trench Digging) used the TMA-83 chassis. However, the cabin was cut in half to create a one-man glass cabin. The trench digging apparatus was of Soviet origin, borrowed from a BTM-3. It could dig trenches between 270 to 810 m long per hour. Series 0 of production was to start in 1988, but due to performance issues, homologation was postponed until 1990, when the hydraulic installation was reworked. But the original chassis of the TMA-83 proved to be unsuited for the task of a trencher, as the hull sides would warp under the immense stress caused by the trenching operation, and the overall hull was found to be too narrow. Further work on a domestic trencher was to continue through the 1990s, but budget cuts ended all work.

The only available photo of the MST-802, with its trencher extended. Note the 1-man cabin.
Source: Unknown


The TMA-83s were used for towing various heavy howitzers and ammunition. They were also used for accessing remote communities during heavy snows and flooding. According to former mechanics, they were fine machines, when they worked. The main problem was the clutch, which failed often, but the entire transmission proved troublesome. Another issue was the very high fuel consumption. Thus, only 5 years later, when the Communist regime fell and military budgets were cut, the TMA-83 began retirement, as the money was no longer there to keep maintaining and repairing them, as well as satisfy their high fuel consumption. The last examples were retired in 2005. A similar fate was shared by most tracked artillery tractors in Romanian service.

The DAC 665T 6×6 truck first entered production in 1978 and worked hand in hand with artillery tractors in terms of towing and supplies. But, in the 1990s, as they were much cheaper to operate, faster and more reliable, they began replacing the tracked prime movers. In the mid-1980s, the 8×8 DAC 31.320 VFAEG was introduced, and was intended to tow heavy artillery pieces, as well as towing tanks, but only 16 were built. The 335 Artillery Battalion “Alexander the Good” still operates a dozen ATS-59G were still in service in the Romanian forces towing the Ob.Md.1985, which is too heavy for the DAC-665T to tow. These tractors would be taken out of service in 2024 and auctioned off.

ATS-59G towing a Ob.Md.81 near Botoșani, 2021.
Source: MApN Facebook

All TMA-83s were retired by 2005, as Romania joined NATO and retired vast amounts of older equipment. At the moment, at least 4 are put for public display, 2 at the military museum in Constanța, and another 2 at Arsenal Park in Orăștie.

One of the two TMA-83s displayed at the Ferdinand I Military Museum in Constanta.
Source: Ioana Preda
Comparison of some artillery prime movers in Romanian service
Name AT-S (712) ATS-59 ATS-59G TMA-83
Type Medium artillery tractor Medium artillery tractor Medium artillery tractor Medium artillery tractor
Country of origin USSR USSR USSR Romania
Production (year) 1950-1962 1959-1967 1969-1980s 1984-1990
Service in Romania 1950s-2005 1960s-2005 1970s-present 1985-2005
Mass (kg) 12,000 13,000 13,750 14,000
Engine (hp) 275 300 300 350
Fuel consumption (l/100km) 156 150-160 150-165 >100
Range (km) 350 350 (500 with external fuel tanks) 350 (500 with external fuel tanks) 550
Max. speed (km/h) 36 41 45 45
Pulling weight (kg) 14,000 14,000 14,000 15,000
Capacity (cabin + flatbed) 7+10 2+14 6+12 8+4


The TMA-83 was a legitimate attempt to nationalize medium artillery tractor production by using readily available and proven components. However, it was plagued by a series of mechanical issues relating to the gearbox and clutch. Additionally, the overall class of tracked artillery prime movers became more and more obsolete, as they were slow, cumbersome, and expensive to maintain. In contrast, trucks became more and more versatile, and eventually replaced tracked prime movers in most militaries.

Special thanks to Joshua Martinez and NNNicusor from ARO Club Romania for the material provided.

TMA-83. Illustration by Pavel Alexe, funded through our Patreon campaign.

TMA-83 Specifications

Dimensions (L-W-H) 6.80- 2.773- 2.60 m
Total weight, battle-ready 14,000 kg
Crew 12 (8 in cabin, 4 in flatbed)
Propulsion 350 hp V-2-350T (V-12)/td>
Speed Max. speed 45 km/h
Max. speed fully loaded 44 km/h
Avg. speed fully loaded 35 km/h
Suspension Torsion bar, 5 wheels per side
Armament N/A
Armor N/A
No. Built Around 200 built


Manual TMA-84, 1988
Artileria Romana in date si Imagini – Col. conf. Univ. Dr. Adrian Stroea, Lt. Col. Gheorghe Băjenaru
Tractorul Mijlociu de Artilerie Românesc – Major Eng. Eugen Petre
Sasiu Multifunctional de Geniu – Lt. Col. Eng. Pompiliu Bolan, Eng. Ilie Nicolae
(PDF) Contribuții la istoria dotării cu armament a armatei române între 1944 și 1959 | Sămușan Alin Bogdan –
(DOC) Evoluția dotării cu automobile a armatei române între 1948 și 1957 | Sămușan Alin Bogdan –
(PDF) Motorizarea tracțiunii în armata română între 1948 și 1957 | Sămușan Alin Bogdan –
Tun-obuzier cal. 152 mm (
Tractor ATS-59 | Encyclopedia of Military Equipment (
SAGETILE DACIEI (2) – Romania Military (
Tractor AT-S | Encyclopedia of Military Equipment (

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