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European Main Battle Tank Could Get a Massive ‘Gun’

European Main Battle Tank
European Main Battle Tank. Image: Creative Commons.

On paper at least, the European Main Battle Tank could be a heavy-hitter.

The joint Franco-German European Main Battle Tank venture aims at leveraging aspects of France and Germany’s tank programs to build a technologically advanced tank that both countries hope could be introduced into service Europe-wide.

To date, the project has produced just a single pre-production prototype that combines features of both the French Leclerc main battle tank as well as the German Leopard 2. The design, intended to demonstrate the compatibility of French and German engineering and technology, mates the Leclerc’s well-protected autoloading turret with the Leopard’s robust chassis and reliable engine. A demonstration video showing a bit of the EMBT’s manufacture as well as mobility and firepower capabilities can be seen above and is worth the watch.

European Main Battle Tank: The Design…and the Gun

Though the Franco-German design is in the very early stages, it is already primed to offer superior characteristics when compared to either the Leclerc or Leopard 2 by themselves. Thanks to the Leclerc’s autoloading turret, the EMBT prototype requires one less crew member (loader), and is significantly lighter, at about 6 tons or about 5,500 kilograms.

However, one of the more significant proposed upgrades would be related to firepower. Rather than utilizing the NATO-standard 120mm main gun, the EMBT may opt for a larger main gun: a 130mm design, or potentially an even more massive 140mm main gun.

Larger-caliber guns naturally translate to superior anti-armor capabilities, and the French have apparently mulled outfitting the Leclerc with a larger upgraded main gun in the past, though that idea was evidently shelved. Rheinmetall, the German firm behind what is perhaps the most widely-used 120mm tank gun design in NATO and perhaps world-wide, also experimented with a prototype 130mm main gun, intended to augment NATO tank’s firepower.

Though indeed massive, the EMBT project wouldn’t be the largest main gun ever put on a tank. During World War Two, both the Axis and Allies experimented with a number of novel tank and tank-destroyer designs that would occasionally meld elements from heavy artillery and armored vehicle onto one platform.

One of the more noteworthy examples was a product of Soviet engineering. The massive  ISU-152 was essentially a 152mm heavy artillery cannon placed on a heavy tank chassis. The main gun’s large diameter is immediately obvious. Though the ISU-152 was intended to serve a mobile heavy assault platform for taking on heavily fortified Nazi positions, the Soviet Union was able to leverage the incredible explosive power generated by its large main gun to take on virtually all Nazi German armor — despite lacking a dedicated anti-armor round.

It remains to be seen which option the EMBT will opt for, though either decision would make existing French and German 120mm ammunition stockpiles obsolete, one factor that could complicate the decision to upgrade the tank’s main gun. Alternatively, a 120mm main gun with an extended length barrel could allow for higher muzzle velocities and therefore better armor penetration while reducing logistic complications.

In either case, increased shell size would likely necessitate an autoloading turret design, as a 130mm or 140mm cartridge size could approach the weight limit of what a human loader is able to manipulate. Much more about the EMBT remains to be seen — though a larger main gun is possible, and an autoloading turret likely.

Caleb Larson is a Defense Writer based in Europe. He holds a Master of Public Policy and covers U.S. and Russian security, European defense issues, and German politics and culture.

Written By

Caleb Larson, a defense journalist based in Europe and holds a Master of Public Policy degree from the Willy Brandt School of Public Policy. He lives in Berlin and writes on U.S. and Russian foreign and defense policy, German politics and culture.

7 Comments

7 Comments

  1. Tom

    February 11, 2021 at 10:45 am

    I would expect a move in the future to a larger diameter round to address the flexibility of utilizing more diversified rounds, a reintroduction of “the missile-tank,” concept. A wider tube means more missile per foot. More anti-armor from the main gun, and the capacity to launch anti-aircraft missiles with range would be a self-sustaining weapons platform given the air dominant weapons emerging.

  2. Dan Mullock

    February 11, 2021 at 4:08 pm

    The author writes many superb articles on military affairs, but in this case makes a significant error in commenting that a 130 mm main gun would obsoleter pre-existing munition stocks. Much of the pre-existing munitions are discarding sabot dense metal rod rounds which could be easily modified by changing the diameter of their sabots. Their higher velocity would translate into more kinetic energy on the target. Chemical energy warheads perhaps could be “saboted” as well but would not have enhanced performance. Caleb, am i right?

  3. Curly_Bill

    February 11, 2021 at 6:09 pm

    You might have mentioned the British FV4005 and it’s 183mm rifle. Two were built but were superseded by anti tank missiles.
    https://www.militaryfactory.com/armor/detail.asp?armor_id=825
    http://www.primeportal.net/tanks/elmar_glaubitz/centurion_fv4005_183mm/

  4. John Bon Jovi

    February 11, 2021 at 9:51 pm

    The chances of Germany and France actually buying the tank in significant numbers is slightly less likely than Donald Trump and Nancy Pelosi getting married and becoming Mormons.

  5. AndyS

    February 12, 2021 at 8:27 pm

    T-95 says “puny little gun”.

  6. theo kornpone

    February 12, 2021 at 10:45 pm

    Do Europeans ever actually shoot at anybody anymore?

  7. Al Horvath

    February 14, 2021 at 12:33 am

    If by chance this joint project is a success the cost of these new tanks will significantly reduce the number of tanks in the NATO arsenal. It must be remembered that in war quantity is quality.

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