RDT&E Project · President's Budget PB2027

Congressional Adds

FY2027 Request
$0.0M
▼ 100% vs FY2026
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Project 9999 — Congressional Adds requests $0.0M in FY2027, 0.0% of the $425.1M requested for program element 0604307N, down 100% on FY2026.

FY2027 Request
$0.0M
▼ 100% vs FY2026
FY2026 Enacted
$91.2M
No FY2025 funding
FY2025 Actual
$0.0M
Prior year
Project detail

What project 9999 buys

PATRIOT ADVANCED CAPABILITY 3 (PAC-3) Development Integration and test supports the integration of Patriot Advanced Capability-3 (PAC-3) missile system into the Aegis Combat System. This integration will significantly enhance the warfighting capabilities of the U.S. Navy by providing an expanded battlespace, improved threat defeat timelines, and a layered defense against advanced air and missile threats. The effort includes the following key components: 1. Software Integration: Development and integration of software modifications to the Aegis Weapon System to effectively control and employ the PAC-3 missile. This includes adapting existing fire control logic, developing new engagement protocols, and ensuring seamless data exchange between Aegis and the PAC-3 system. 2. Missile Modifications: Development of a compatible radio system for the PAC-3 missile to enable secure and reliable communication with the Aegis Weapon System to enable missile guidance. Includes funding to adapt the PAC-3 missile system to the maritime environment in order to pass environmental testing and safety qualification. 3. Mk-41 VLS Adaptation: Development of a canister for the PAC-3 missile which is compatibility with the Mk-41 Vertical Launching System (VLS) currently deployed on Aegis destroyers. This includes mechanical, electrical, and software modifications to ensure safe and reliable launch from the VLS.

R-3 lines of work
  • Product Development
  • Management Services
Funding trajectory

Project 9999 funding, FY2025–FY2031

Prior years are actuals, the budget year is the request, and the outyears are the FYDP plan. Estimate types are colored and never summed into one figure. Projects carry the full five-year plan; the activities inside them stop at the budget year.

25507500.0FY25ACTUAL91.2FY26ENACTED0.0FY27REQUEST0.0FY280.0FY290.0FY300.0FY31
Actual Enacted Request Outyear (FYDP)
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual0.0
FY2026Enacted91.2
FY2027Request0.0
FY2028Outyear0.0
FY2029Outyear0.0
FY2030Outyear0.0
FY2031Outyear0.0