Rheinmetall, HDT to Develop Army's Small Multipurpose Equipment Transport Prototypes

October 11, 2024

American Rheinmetall’s S-MET prototype vehicle. (Image: American Rheinmetall Vehicles)

On Sept. 24, the U.S. Army announced the award of two Other Transaction Authority Engineering and Manufacturing Design contracts to American Rheinmetall Vehicles, LLC, and HDT Expeditionary Systems, Inc., totaling a combined $22 million to provide eight prototypes each of the Small Multipurpose Equipment Transport Increment II.

The S-MET was originally developed as a Directed Requirement meant to identify opportunities for the Army to quickly field existing platforms to improve the fighting force’s capability. The S-MET Increment I is a single radio-controlled, eight-wheeled platform designed to carry payload, generate power for organic electronic systems, and conduct unconstrained movement. In its first increment, the S-MET is capable of carrying 1,000 lbs. of equipment and provides enhanced capability primarily in Infantry Brigade Combat Teams, Explosive Ordnance Disposal, and Security Force Assistance Brigades.

The second increment seeks to double that payload capacity while adding several improvements identified by Solders during evaluation and operation. Those improvements include:

Higher exportable power to enable modern mission payloads like Unmanned Air Systems and communications equipment
Improved audio signature reduction
A dismounted wireless mesh communication network
Increased reliability
Worldwide grid charging
Modular and open architecture allowing for easier and more cost-effective upgrades.

HDT’s S-MET prototype vehicle. (Image: U.S. Army)

“S-MET Increment II addresses capability gaps associated with excessive physical burdens, recharging batteries during continuous operations, and reducing sustainment burden for semi-independent operations. The S-MET reduces Soldier load and enhances small unit combat effectiveness by reducing fatigue and injury caused by excessive physical loads, shifting the burden to the robotic platform,” said Kyle Bruner, the Army’s Project Manager for Force Projection, Program Executive Office Combat Support & Combat Service Support, headquartered here.

“S-MET supports the Army’s mission to implement robotic and autonomous system capabilities with urgency to lessen risk to Soldiers in multi-domain operations,” he added.

Successful S-MET Increment II developmental testing will lead to a production contract slated for late Fiscal Year 2027 for an Army Acquisition Objective of up to 2,195 systems.

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