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OTO-Melara OF-40

Main Battle Tank (MBT) Combat Vehicle [ 1981 ]

The OTO-Melara OF-40 Main Battle Tank was developed from the outset for the export market, the UAE becoming its sole operator.

Authored By: Staff Writer | Last Edited: 09/03/2020 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

Recognizing the need for a budget main battle tank on the world market, the Italian concerns of OTO-Melara and FIAT combined to produce the export-minded "OF-40" MBT. Work on the type - along with the derivative Palmaria 155mm Self-Propelled Gun - began in 1977 to which pilot vehicles were unveiled in 1980 (the Palmaria SPG utilized the chassis and hull of the OF-40 design with an all new turret). Through the joint venture, FIAT garnered the contract to manufacture engines and transmissions while OTO-Melara was the overseeing prime contractor and fulfilled the rest of the design and component requirements. Following trials and evaluation, the United Arab Emirates (UAE) became the first - and subsequently the only - customer of the OF-40 tank resulting in 39 total examples completed. The Palmaria SPG system has since gone on to see considerably better export success. Production of OF-40 vehicles spanned from 1980 to 1985.

The OF-40 was a highly functional yet wholly basic main battle tank end-product. Design was conventional with a four-man crew, a 105mm main gun fitted to a well-sloped traversing turret and a tracked hull with the powerpack fitted to the rear. The engine consisted of a German MTU MB 838 Ca M500 V10 series supercharged diesel-fueled system outputting at 820 horsepower. The vehicle was suspended atop a torsion bar configuration while the track-and-wheel system sported seven double-tired road wheels to a side with the drive sprocket at the rear and the track idler at the front. The upper portions of the track link system were protected in thin skirt armor. All told, the OF-40 gave a top speed of 37 miles per hour with an operational range of 370 miles. As the OF-40 shared many of the same automotive components of the subsequent Palmaria design, it was logistically sound for countries to consider the purchase of both vehicle types - though this benefit never materialized on the global market. The standard crew included the driver at the front-right of the hull with the commander, loader and gunner in the turret. NBC protection was standard and night vision equipment made optional. The vehicle weighed in at 50 tons and sported a running length of 30 feet, a width of 11.5 feet and a height of 8 feet.

At the heart of the OF-40 design was its 105mm L7 main gun. The British-designed weapon proved a popular anti-tank measure during the Cold War - particularly for Western tank designs - before being superseded by a more powerful 120mm offering. 57 x 105mm projectiles were stored in the turret and hull of the OF-40 while self-defense was through 2 x 7.62mm machine guns - one fitted in a coaxial mounting in the turret alongside the main gun and the other fitted on the turret roof to counter both enemy infantry and low-flying enemy threats. 5,700 x 7.62mm ammunition was carried aboard for both machine guns. The OF-40 could generate its own smoke screen to cover actions through 2 x 4 smoke grenade dischargers identified along the frontal turret sides.

The United Arab Emirates received their OF-40 tanks in an initial batch of 18 x Mk 1 series vehicles. A second order for 18 more Mk 2 standard vehicles and 3 x Armored Recovery Vehicle (ARV) variants followed. The Mk 2 standard introduced an improved fire control system (FCS) with laser rangefinder as well as improved gun stabilization. A stabilized, turret roof-mounted day/night scope was afforded to the commander's position and all major optics were replaced for the better. A Low Light Level Television (LLLTV) camera was further added. When receiving their new Mk 2 models, existing UAE Mk 1 forms were all upgraded to the Mk 2 standard.

Despite the improvements, the OF-40 was quickly superseded globally by many modern MBT types including the German Leopard 2, British Challenger (1 and 2), the French Leclerc, the Russian T-90 and the American M1 Abrams. Each has since evolved to feature a bevy of advanced sensors and improved accuracy while the popular 105mm of old has since given way to the 120mm caliber or larger - leaving the OF-40 series somewhat outmoded by modern standards. However, the OF-40 was never intended to compete directly with these powerful mounts, only supplying potential buyers with a competent, budget-conscious alternative concerning an MBT. At any rate, the OF-40 may very well do adequately in combat against the foes the UAE are expected to face. Global interest in the system was shown by other parties initially though the UAE became its sole operator. The OF-40 is neither in production nor is it actively marketed by OTO-Melara as of this writing (2016).©MilitaryFactory.com
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Service Year

Italy national flag graphic


National flag of the United Arab Emirates United Arab Emirates
(OPERATORS list includes past, present, and future operators when applicable)
Onboard systems provide solutions to accomplish a variety of battlefield engineering tasks.
Main Battle Tank (MBT)
Primary armored ground combat unit of modern armies utilizing speed, protection, and / or firepower to spearhead armored assaults.
Frontline Asset
Frontline unit used to take direct part in forward operating actions against enemy positions / targets.
Engage armored vehicles of similar form and function.

30.2 ft
9.22 m
11.5 ft
3.51 m
8.0 ft
2.45 m
100,310 lb
45,500 kg
50.2 tons
(Showcased structural values pertain to the base OTO-Melara OF-40 production variant. Length typically includes main gun in forward position if applicable to the design)
Powerplant: 1 x MTU MB 838 Ca M500 V-10 surper-charged, diesel-fueled engine developing 830 horsepower at 2,200rpm driving conventional track-and-wheel arrangement.
37.3 mph
(60.0 kph)
372.8 mi
(600.0 km)
(Showcased performance specifications pertain to the base OTO-Melara OF-40 production variant. Compare this entry against any other in our database)
1 x 105mm L7 main gun in front turret face.
1 x 7.62mm co-axial machine gun in front turret face.
1 x 7.62mm Anti-Aircraft (AA) machine gun on turret roof.
2 x 4 Smoke grenade dischargers on turret sides.

Supported Types

Graphical image of a tank cannon armament
Graphical image of a tank medium machine gun
Graphical image of a tank heavy machine gun
Graphical image of tank /armored vehicle smoke grenade dischargers

(Not all weapon types may be represented in the showcase above)
57 x 105mm projectiles.
5,700 x 7.62mm ammunition.
8 x Smoke grenades.

OF-40 - Base Series Designation
OF-40 Mk 1 - Initial Production Mark; 18 examples delivered to the UAE.
OF-40 Mk 2 - Updated fire control system (Galileo); updated optics; installed camera; improved gunnery accuracy; prior Mk 1 models brought up to Mk 2 standard; 18 new-build exmaples delivered to the UAE.
OF-40 ARV - Armored Recovery Vehicle; based on the chassis and hull of the OF-40 design; 3 examples delivered to the UAE.
OF-40 - Proposed (though abandoned) air defense variant armed with twin 35mm guns in revised turret.
Palmaria SPG - 155mm Self-Propelled Gun variant; utilizing chassis and hull of the OF-40 MBT with all-new turret mounting 155mm main gun.
OTO 76/62 - 76mm anti-aircraft system

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Image of the OTO-Melara OF-40


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