U.S. Army receives 1st Hanwha-made mobile howitzer system: report

The Mobile Tactical Cannon, or MTC, is a highly mobile 155 mm artillery system. Hanwha Defense USA is building it for the U.S. Army. It is based on a wheeled version of Hanwha’s K9 Thunder self-propelled artillery system. The Army wants it to replace aging M777 towed howitzers.

A towed howitzer must be pulled by another vehicle and then positioned for firing. A self-propelled howitzer carries its gun, crew, ammunition, and engine on one platform. The MTC can therefore travel as part of a unit without waiting for a separate towing vehicle. Its wheeled design also supports movement on roads and across operational areas.

The Army received its first MTC and displayed it at an event in Washington. Officials now plan testing and soldier feedback. The system is intended initially for Stryker brigade combat teams, making the MTC a possible replacement for the M777 in selected Army formations.

Hanwha Defense USA’s MTC contract covers six prototypes. The U.S. Army also holds an option to order 12 additional systems. This gives the program a possible total of 18 systems if the option is exercised. The prototypes will support development and testing rather than immediate fleet-wide replacement.

The contract’s cumulative value is up to US$262.9 million. That figure includes the contracted prototype work and the potential additional systems under the option. The Army selected Hanwha Defense USA in August for the Mobile Tactical Cannon program.

The first system has already reached the Army and was displayed at a Washington event. Officials said they were preparing to test it and gather soldier feedback. Those results can influence whether the Army proceeds toward larger purchases and broader replacement of its M777 howitzers.

The U.S. Army is replacing its M777 towed howitzers because they are aging. The M777 has been in service since 2005. The replacement effort focuses on a highly mobile 155 mm artillery system that can better fit the Army’s future requirements.

The proposed answer is the Mobile Tactical Cannon. It is a self-propelled howitzer based on a wheeled version of Hanwha’s K9 Thunder. Because the gun is mounted on its own vehicle, it does not depend on a separate towing vehicle for movement. That design is intended to make artillery units more mobile than a towed system.

The Army has received its first MTC for testing and soldier feedback. It plans to deploy the new systems initially to Stryker brigade combat teams. The article does not give a specific service-life problem beyond describing the M777s as aging, so evaluation will determine how well the MTC meets the replacement goal.

A 155 mm artillery system fires artillery projectiles designed for a 155 mm gun barrel. The MTC program uses this caliber for a new mobile howitzer. Such systems can deliver explosive shells and other specialized ammunition, depending on the army’s ammunition inventory. The article identifies the caliber but does not describe particular shell types.

The 155 mm caliber is widely used by modern armies because it is an established international standard. Common calibers simplify ammunition production, storage, training, and coordination among allied forces. A large shell also offers a useful balance between destructive effect, range, and the weight a military can move.

In this program, the Army is not changing the basic caliber. It is changing the platform that carries the gun. The MTC would put a proven 155 mm capability on a wheeled, self-propelled vehicle, while replacing the aging M777 towed system.

A wheeled, self-propelled howitzer could make U.S. artillery units faster and easier to reposition. The MTC carries its gun and propulsion system together, unlike the M777, which is towed. The Army specifically describes the program as developing a highly mobile 155 mm artillery system.

Its key mechanism is independent movement. After firing, a self-propelled unit can leave its position without waiting for a separate towing vehicle to attach and move the gun. Faster movement can help crews avoid remaining in one predictable location. In general military practice, this shoot-and-move ability can reduce exposure to return fire, though the article does not report combat results.

The MTC is now entering testing, so its actual benefits remain to be measured. The Army wants soldier feedback before making further decisions. Initial evaluation with Stryker brigade combat teams will show how the wheeled system performs in the formations planned to receive it first.

The Army plans to deploy the new artillery systems initially to Stryker brigade combat teams. This is part of the effort to replace M777 towed howitzers. The article presents these brigades as the first planned users of the MTC, rather than describing an Army-wide rollout.

The MTC’s wheeled, self-propelled design makes it suited to a mobility-focused evaluation. The system is based on a wheeled K9 variant and is intended to provide highly mobile 155 mm firepower. Testing it with the formations identified for initial deployment can give commanders and soldiers practical experience with its movement, operation, and support needs.

The article does not state a more specific reason for choosing Stryker brigades. It does say the Army wants soldier feedback and plans testing. Their evaluation will help determine whether the MTC can effectively replace M777 howitzers in those units and support later decisions about wider use.

The K9 Thunder is Hanwha’s established self-propelled artillery system. The South Korean military has operated it since 1999, and the system has been exported to multiple countries. That operational and export history gives Hanwha a foundation for developing the MTC for the U.S. Army.

Hanwha Defense USA won the MTC prototype contract with a wheeled variant based on the K9. This adapts the company’s tracked artillery family into a mobile system designed for the Army’s replacement program. The contract covers six prototypes, with an option for 12 more, allowing the U.S. to test the design.

Hanwha said the contract was the K9 system’s first entry into the U.S. defense market. The company also pledged to establish a stable production base as part of its localization strategy. The deal therefore combines a new Army artillery program with Hanwha’s broader effort to build a U.S. defense presence.