# Family of Heavy Tactical Vehicles — Program Element 0604622A

**Program element:** 0604622A  
**Component:** U.S. Army  
**Appropriation:** 2040 — RDT&E, Army  
**Budget Activity:** 5 — System Development & Demonstration  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0604622A

## Summary

U.S. Army requests $43.0M in FY2027 — the program's peak. In the FY2027 defense authorization, the House funded it in full; the Senate added 23% (to $53.0M); House appropriators funded it in full. TACOM LCMP leads the industry work, though an unusually large share flows to government labs and warfare centers.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 33.4 |
| FY2026 | Enacted | 38.7 |
| FY2027 | Request | 43.0 |
| FY2028 | Outyear | 33.0 |
| FY2029 | Outyear | 33.1 |
| FY2030 | Outyear | 33.2 |
| FY2031 | Outyear | 33.5 |

> Estimate types are not summed — the profile mixes actuals, enacted law, the request, and outyear projections.

## Congressional marks (FY2027)

| Stage | Marked ($M) | Change ($M) |
|---|---|---|
| Request | 43.0 | — |
| House NDAA (HASC) | 43.0 | +0.0 |
| Senate NDAA (SASC) | 53.0 | +10.0 |
| House Approps (HAC-D) | 43.0 | +0.0 |

> FY2027 NDAA authorization marks, as of 2026-07-27. Not appropriations or final law.

## Projects (3)

| Project | Title | FY2025 actual | FY2026 enacted | FY2027 request | Move |
|---|---|---|---|---|---|
| EZ8 | Leader/Follower | 29.0 | 30.3 | 22.2 | −27% |
| DG7 | Common Tactical Truck | 4.4 | 8.4 | 15.8 | +88% |
| 659 | Family Of Hvy Tac Veh | — | — | 5.0 | new start |

> Projects are the summable leaves: the program element total is their sum, never added to it.

### Project EZ8 — Leader/Follower

The Leader Follower (LF) funding line supports the Autonomous Transport Vehicle-System (ATV-S) effort that equips Tactical Wheeled Vehicles with autonomous behaviors. Additionally, the capability gives convoy commanders flexibility to leverage the six levels of automated driving that range from Level 0 (Fully Manual) to Level 5 (Fully Autonomous), and any combination therein to conduct convoy operations. Autonomous driving behaviors enable increased operational efficiency of tactical wheeled vehicles resulting in an increase of sustainment throughput while reducing Soldier exposure to hostile threats. The total cost of the Autonomous Transport Vehicle-System (ATV-S) Middle Tier of Acquisition Rapid Prototyping (MTA-RP) effort is $93.214 million from FY 2023 to FY 2027. The ATV-S MTA-RP program is fully funded across the Future Years Defense Program. FY 2027 RDTE in the amount of $22.232 million funds Phase 3 contract milestone completion of prototypes in support of First Unit Issued (FUI), technical support, software development and program support.

**Named R-3 performers** (share of this project's FY2027 R-3 total, so they need not reach 100%)**:** GVSC (0.2, 0.7%).

| Activity (R-2A) | FY2025 | FY2026 | FY2027 |
|---|---|---|---|
| Tactical Wheeled Vehicle Leader Follower (Autonomous Transport Vehicle-System) | 29.0 | 30.3 | 13.5 |
| Tactical Wheeled Vehicle Leader Follower (Autonomous Transport Vehicle-System) Follow-on Pathway | — | — | 8.7 |

> R-2A activities carry the prior, current and budget year only — no five-year plan. Coverage is partial, so count them, never total them.

### Project DG7 — Common Tactical Truck

The Common Tactical Truck (CTT) program is a Family of Vehicles (FoV) that will replace the M915 Line Haul Tractor (LHT), Palletized Load System (PLS), and Heavy Expanded Mobility Tactical Truck (HEMTT) by leveraging best commercial practices and mature commercially available technology, including Predictive Logistics, Advanced Driver Assistance Systems (ADAS), and autonomy ready, resulting in lower procurement costs through economies of scale FY 2027 Project DG7 Base funds in the amount of $15.777 million supports CTT Procurement of Live Fire Test assets and test planning, initiation of the development CTT Autonomy Interoperability Profile (IoP) istantiation, continuation of the CTT Exportable Power and Energy Study, initiation of the CTT Logistics Products and Data Rights deliverables, and Program Management support. The total cost of the CTT Middle Tier of Acquisition Rapid Prototyping effort is $58.8 million RDT&E from FY 2023 to FY 2026. The CTT MTA Rapid Prototyping is fully funded across the Future Years Defense Program. In accordance with Section 1815 of the FY 2008 National Defense Authorization Act (P.L. 110-181), these items are necessary for use by the active and reserve components of the Armed Forces for homeland defense missions, domestic emergency responses, and providing military support to civil authorities.

**Named R-3 performers** (share of this project's FY2027 R-3 total, so they need not reach 100%)**:** TACOM LCMP (2.9, 18%).

| Activity (R-2A) | FY2025 | FY2026 | FY2027 |
|---|---|---|---|
| CTT Program Management Support | 2.0 | 7.2 | 2.9 |
| Predictive Logistics (PL) Data Integration Ground Systems (DIGS) Development | 2.4 | — | — |
| Develop CTT Autonomy Interoperability Profile (IoP) Instantiation | — | — | 0.1 |
| CTT Exportable Power and Energy Study | — | 0.7 | 0.3 |
| CTT Mobility Study | — | 0.5 | — |
| Procurement of Live Fire Test Assets | — | — | 11.7 |
| CTT Logistics Products and Data Rights deliverables | — | — | 0.3 |
| CTT Test Planning | — | — | 0.5 |

> R-2A activities carry the prior, current and budget year only — no five-year plan. Coverage is partial, so count them, never total them.

### Project 659 — Family Of Hvy Tac Veh

This Program Element (PE) aligns system development and demonstration of Heavy Tactical Vehicles (HTV) with Multi-Domain Operations (MDO) requirements to support combat and combat support missions to include line haul, local haul, and unit resupply. HTV trucks transport water, ammunition, and general cargo over all terrains and throughout the battle-space. Systems include the Heavy Expanded Mobility Tactical Truck (HEMTT), Palletized Load System (PLS), Heavy Equipment Transporter System (HETS), Enhanced Heavy Equipment Transporter System (EHETS), Line Haul, Heavy Dump Truck (HDT), medium tactical trailers including the Medium Equipment Trailer (MET), the family of flatbed semitrailers to include but not limited to the 40-Ton M870, 34-Ton M872 and the 25-Ton M172 that support multiple Army missions and the development and demonstration of enablers. Recovery systems such as the Modular Catastrophic Recovery System (MCRS) and other heavy wreckers, that rescue large wheeled and track vehicle platforms in severe off-road conditions are also included. Periodic evolutionary upgrade of survivability and crew protection as described in the Long Term Protection Strategy (LTPS) is supported by this PE for both the HTV family of vehicles and the Family of Medium Tactical Vehicles (FMTV). Arctic Initiatives are also supported by this PE. Funding supports modernization of the current Tactical Wheeled Vehicle fleets by investigating technology insertions including, but not limited to: Predictive Logistics, vetronics, transportability of tactical wheeled vehicle equipment, vehicle electrification, fully autonomous operations, and other emerging technologies. Funding also supports developing initial prototypes to enable refinement of Operational Requirements and early user feedback to support future sustainment and operational movement operating concepts. In accordance with Section 1815 of the FY 2008 National Defense Authorization Act (P.L. 110-181), these items are necessary for use by the active and reserve components of the Armed Forces for homeland defense missions, domestic emergency responses, and providing military support to civil authorities.

| Activity (R-2A) | FY2025 | FY2026 | FY2027 |
|---|---|---|---|
| Predictive Logistics (PL) Digital Maintenance and Data Integration Ground Systems (DIGS) Development | — | — | 5.0 |

> R-2A activities carry the prior, current and budget year only — no five-year plan. Coverage is partial, so count them, never total them.

## Where the FY2027 request goes

| Category | Share | $M |
|---|---|---|
| Industry primes | 7.0% | 3.0 |
| Government labs & warfare centers | 34% | 14.5 |
| Other / unspecified | 59% | 25.5 |

**Top named industry performers:** TACOM LCMP ($2.9M, 6.7%).

> R-3 exhibit contract funding, not USAspending obligations.

## Mission & acquisition strategy

This Program Element (PE) aligns system development and demonstration of Heavy Tactical Vehicles (HTV) with Multi-Domain Operations (MDO) requirements to support combat and combat support missions to include line haul, local haul, and unit resupply. HTV trucks transport water, ammunition, and general cargo over all terrains and throughout the battle-space.

The Leader Follower (Autonomous Transport Vehicle-System (ATV-S) program) strategy utilizes the Middle Tier of Acquisition (MTA) Rapid Prototyping pathway to compete multiple contractor solutions through a three phased competitive selection process. Phase 1 concluded with the evaluation of the three contractor solutions through a demonstration event and transitioned to Phase 2 with two vendors selected to continue into performance test and evaluation. The ATV-S program has entered Phase 2, Prototype Testing and Operational Demonstration with two awarded contractors.

## Related program elements

- [0607137A — Chinook Product Improvement Program](https://hitchintel.com/programs/0607137A) (Army)
- [0605805A — Munitions Standardization, Effectiveness and Safety](https://hitchintel.com/programs/0605805A) (Army)
- [0206624M — Marine Corps Cmbt Services Supt](https://hitchintel.com/programs/0206624M) (Navy)
- [0604222F — Nuclear Weapons Support](https://hitchintel.com/programs/0604222F) (Air Force)

## Source & machine access

- **Source:** FY2027 Department of the Army RDT&E Budget Justification, Exhibits R-2/R-3, PE 0604622A (PB PB2027); FY2027 NDAA committee marks (as of 2026-07-27).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="0604622A")`.

*HitchAI is an independent intelligence service, not affiliated with the U.S. Department of Defense. Budget figures are requests/estimates, not obligations.*