FAMILY OF SEMITRAILERS

The FAMILY OF SEMITRAILERS program is a consolidated Army procurement initiative under budget line item 0896D03900, focused on acquiring a range of semitrailers and fuel distribution systems to support tactical and sustainment operations. The goal of this program is to modernize and recapitalize the Army's tactical vehicle fleet by providing versatile, reliable, and mission-critical transportation assets. These assets are essential for supporting Multi-Domain Operations (MDO), Large-Scale Combat Operations (LSCO), and a broad spectrum of Army and joint force missions, including homeland defense and support to civil authorities.

The M870A4 is a mechanical folding gooseneck, level-deck trailer with a 40-ton payload capacity, designed to transport engineering construction equipment and other heavy payloads. Its primary mission is to enable the movement of large equipment over various terrain types, including trails and roads. The M870A4 is C-130 air transportable and supports theater access, mobility, counter-mobility, and survivability operations. It is the only semitrailer in the Army inventory with modifications to transport the Long-Range Hypersonic Weapon (LRHW), Lower Tier Air and Missile Defense Sensors (LTAMDS), and the Large Tactical Power Distribution System (LTPDS). Procurement of additional M870A4 units is intended to address readiness gaps and enhance the operational capabilities of Brigade Combat Teams (BCTs).

The M872A4 is a dual-purpose, break bulk/container semitrailer with a 34-ton payload capacity, optimized for transporting large volumes of cargo, including ISO containers, palletized goods, and light tactical vehicles. This trailer is critical for Army Medium Truck Companies and supports the movement of supplies from ports to division areas, directly contributing to sustainment operations and freedom of movement during LSCO and MDO. Procurement of M872A4 units is intended to address shortages and support the Army's modernization priorities in logistics and mobility.

The M172A2 is a commercially adapted, 25-ton flat-level deck trailer with rear loading ramps, designed for the rapid transport of construction equipment and material handling assets. It is also C-130 air transportable and supports early entry, rapid deployment, and sustainment operations. The request for additional M172A2 units supports early entry and mobility requirements for Army engineering and logistics units.

The Tactical Fuel Distribution System (TFDS) is a modernized 5,000-gallon tanker trailer system intended to replace aging M967 and M969 tankers. It addresses a capability gap in bulk petroleum distribution, supporting early entry, buildup, and onward movement of forces in undeveloped theaters. The TFDS is designed for both line haul and retail fuel distribution, capable of operating on unimproved roads and supporting echelons above brigade. Procurement includes add-on armor and refuel-on-the-move kits to enhance survivability and operational flexibility.

The Bulk Fuel Distribution System (BFDS) is a high-capacity petroleum transport system designed to maximize throughput and support large-scale logistics operations. It is compatible with the M915A3/A4/A5 tractors and features digital measurement systems for accurate fuel accounting. The BFDS is critical for sustaining theater-level operations and supporting early entry and onward movement of forces. Procurement of BFDS units ensures the Army's ability to maintain fuel distribution capabilities as legacy systems reach the end of their service life.

The FAMILY OF SEMITRAILERS program also funds matrix functional support, including engineering oversight, logistics management, fielding, and documentation, to ensure successful acquisition and integration of these systems. The consolidation of previous flatbed and tanker semitrailer programs into this single line item streamlines procurement and enhances lifecycle management. The program is justified by the need to close readiness gaps, modernize the Army's transportation and logistics fleet, and ensure sustained operational effectiveness across a range of missions and environments.