# SDB Increment II — Program Element 0207327F

**Program element:** 0207327F  
**Component:** U.S. Air Force  
**Appropriation:** 3600 — RDT&E, Air Force  
**Budget Activity:** 7 — Operational System Development  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0207327F

## Summary

U.S. Air Force requests $25.5M in FY2027, sustained across the five-year plan. In the FY2027 defense authorization, the House funded it in full; the Senate funded it in full; House appropriators funded it in full. RTX / Raytheon leads the industry work.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 29.0 |
| FY2026 | Enacted | 24.6 |
| FY2027 | Request | 25.5 |
| FY2028 | Outyear | 25.9 |
| FY2029 | Outyear | 26.4 |
| FY2030 | Outyear | 26.9 |
| FY2031 | Outyear | 27.4 |

> 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 | 25.5 | — |
| House NDAA (HASC) | 25.5 | +0.0 |
| Senate NDAA (SASC) | 25.5 | +0.0 |
| House Approps (HAC-D) | 25.5 | +0.0 |

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

## Projects (1)

| Project | Title | FY2025 actual | FY2026 enacted | FY2027 request | Move |
|---|---|---|---|---|---|
| 675191 | SDB Increment II | 29.0 | 24.6 | 25.5 | +4% |

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

### Project 675191 — SDB Increment II

GBU-53 Small Diameter Bomb Increment II (SDB II) Stormbreaker is a United States Air Force (USAF)-led, joint interest ACAT-IC program with the Department of Navy (DoN). SDB II delivers and sustains GBU-53 weapons capability for the warfighter to attack mobile and stationary targets at standoff and stand in ranges through all weather. SDB II addresses the following warfighter requirements: precision munitions capability, attack moving and stationary targets, adverse weather operations, multiple kills per pass, multiple ordnance carriage, reduced munitions footprint, increased weapons effectiveness, minimized potential for collateral damage, Military-code (M-code) Global Positioning System (GPS) and inertial navigation, reduced susceptibility to anti-jam / anti-spoofing countermeasures, and Network Enabled Weapon (NEW) capabilities via Link-16. SDB II is a key component of Air Force's Global Strike Task Force CONOPS. The threshold aircraft for the USAF is the F-15E and the threshold aircraft for the DoN are the F-35B and F-35C. Funding for integration of threshold aircraft for F-15E, F-35B, and F-35C is in the SDB II program. Objective aircraft include the F/A-18E/F, F-15EX, F-35A, AC-130, F-16, F-22A, B-1B, B-2, B-52, A-10, and MQ-9. Funding for each objective aircraft is provided by that aircraft program. GBU-53 SDB II is compatible with the BRU-61 and BRU-55 miniature munitions carriages, the CNU-660/E weapon carriage container, the Common Munitions Bit and Reprogramming Equipment (CMBRE), and the Joint Mission Planning System (JMPS). The SDB II produces and fields GBU-53s in single-weapon USAF storage containers or dual-weapon DoN containers. DoN IOC declared F/A-18E/F in January 2026. The Milestone Decision Authority approved APB updates in May 2022 and again in May 2025 to incorporate the updates to USAF and DoN inventory objectives. The program is proceeding to a Full Rate Production (FRP) decision in FY 2027. SDB II implements tenets of Open, Agile, and Digital acquisition for any new subsystem hardware or software development. Integrates the system in weapon portfolio trade space studies by conducting trade studies, system engineering, test activities, and system modeling and simulation.

**Named R-3 performers** (share of this project's FY2027 R-3 total, so they need not reach 100%)**:** RTX / Raytheon (14.6, 57%), Boeing (2.2, 8.6%).

| Activity (R-2A) | FY2025 | FY2026 | FY2027 |
|---|---|---|---|
| SDB II Development and Engineering Changes | 21.5 | 24.6 | 25.5 |
| SDB II M-Code | 7.5 | 0.0 | 0.0 |

> 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 | 66% | 16.8 |
| Other / unspecified | 34% | 8.7 |

**Top named industry performers:** RTX / Raytheon ($14.6M, 57%), Boeing ($2.2M, 8.6%).

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

## Mission & acquisition strategy

GBU-53 Small Diameter Bomb Increment II (SDB II) Stormbreaker is a United States Air Force (USAF)-led, joint interest ACAT-IC program with the Department of Navy (DoN). SDB II delivers and sustains GBU-53 weapons capability for the warfighter to attack mobile and stationary targets at standoff and stand in ranges through all weather. SDB II addresses the following warfighter requirements: precision munitions capability, attack moving and stationary targets, adverse weather operations, multiple kills per pass, multiple ordnance carriage, reduced munitions footprint, increased weapons effectiveness, minimized potential for collateral damage, Military-code (M-code) Global Positioning System…

October 2009, one contractor was selected in April 2010 and awarded the EMD contract in August 2010. The EMD contract is a Fixed-Price Incentive Firm (FPIF) contract to execute weapon development and qualification and threshold platform integration and test with priced production options for the first five production lots. SDB II production Lots 1-3 were FPIF. Production Lots 4-5 were firm fixed price, and Lots 6-11 are FPIF. The Government is buying the SDB II GBU-53 based on the contractor System Performance Specification (SPS), which has been approved by the Government. The contractor is accountable for system performance as defined in the SPS and a system warranty as defined in the EMD contract and follow-on production contracts.

## Related program elements

- [0604727N — JNT Standoff Weapon Systems](https://hitchintel.com/programs/0604727N) (Navy)
- [0604329N — Small Diameter Bomb (SDB)](https://hitchintel.com/programs/0604329N) (Navy)
- [0303171K — Joint Planning and Execution Services (JPES)](https://hitchintel.com/programs/0303171K) (Defense-Wide)
- [0207249F — Advanced Targeting Pod](https://hitchintel.com/programs/0207249F) (Air Force)

## Source & machine access

- **Source:** FY2027 Department of the Air Force RDT&E Budget Justification, Exhibits R-2/R-3, PE 0207327F (PB PB2027); FY2027 NDAA committee marks (as of 2026-07-27).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="0207327F")`.

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