# Air-Delivered Nuclear Delivery System

**R-2A activity** of project 643360 — Prototyping  
**Program element:** 0604336F — Prototyping  
**Component:** U.S. Air Force · **Budget Activity:** 4  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0604336F/643360/a0  
**Parent:** https://hitchintel.com/programs/0604336F

## Summary

This activity requests $91.6M in FY2027, 100% of project 643360, up 115% on FY2026. The R-2A exhibit describes it across FY2026–FY2027, including what the FY2027 money is planned to buy.

## What the FY2027 request buys

**FY2027 planned work.** - Continue aircraft and guided tail kit integration required for flight testing. - Continue F-15 flight-testing activities, Seek Eagle approval, and initiate flight test events. - Complete Davis Gun scaled testing. - Complete modeling and simulation analysis of Nuclear Explosive Package design options. - Complete component design and procurement of components to build Prototype Weapon Assemblies in preparation of future ground and flight tests. - Complete ground tests of Prototype Weapon Assemblies to include mechanical, electrical, subscale, and sled testing. - Commence sled test target construction for additional tests. - Commence risk mitigation activities to enable prototype development and/or transition to future capabilities. - Commence development of experimental impact fuze technologies to ensure proper system execution for varying scenario target impacts and identification of early integration opportunities.

**FY2026 to FY2027 change.** FY 2027 increased compared to FY 2026 by $49.012 million for the initiation of sled test construction to prepare for multiple ground tests; increased flight test preparation activities to include initial F-15 flight test events; completion of Davis Gun scaled testing; and the development of experimental impact fuze technologies to ensure proper system execution and identification of early integration opportunities.

## Before the request year

**FY2026 plans — current year.** - Continue modeling and simulation analysis of Nuclear Explosive Package design options and validate with sled test results. - Continue component design and procurement of components to build Prototype Weapon Assemblies in preparation of future ground and flight tests. - Continue ground tests of Prototype Weapon Assemblies to include mechanical, electrical, subscale, and sled testing. - Continue aircraft integration required for flight testing. - Complete subscale component and subsystem testing. - Complete initial sled test target construction. - Commence F-15 flight testing activities. - Commence Davis Gun scaled testing.

## Funding

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 37.7 |
| FY2026 | Enacted | 42.5 |
| FY2027 | Request | 91.6 |

> Prior, current and budget year only — an R-2A activity carries no five-year plan. It sums exactly into its project in the request year and not necessarily in any other.

## Source & machine access

- **Source:** FY2027 Department of the Air Force RDT&E Budget Justification, Exhibit R-2A, PE 0604336F project 643360 (PB PB2027). Narrative is the government's own text.
- **No marks, no contractors at this grain** — congressional marks land on the program element and R-3 performers on the project.
- **MCP:** `mcp.hitchintel.com` — `budget_get_activity`.

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