Printed from https://fiscalreceipts.com/program/M09HAI/ — data as of July 28, 2026. Every figure is citation-backed; see the page online for per-number provenance.
Sidewinder (AIM-9X)
Budget Figures
FY2026 award data is a partial year — USASpending awards are reported on a rolling basis and the fiscal year does not close until September 30. why partial FY2026 data? →
- FY24
- $157.7M
- FY26
- $100.4M
● actuals (line) · ○ enacted · ◇ request — gaps are editions the program is absent from, never interpolated.
| Series | FY22 | FY23 | FY24 | FY25 | FY26 |
|---|---|---|---|---|---|
| Actuals | $102.5M | $220.9M | $157.7M | ||
| Enacted | – | $111.9M | $95.6M | $101.8M | |
| Request | – | – | $95.6M | $107.1M | $100.4M |
blank = series not published for this year; – = absent from that edition.
Asked vs spent: the PB2024 book requested $95.6M for FY2024; the PB2026 book reports $157.7M actually spent — $62.0M above the request.
Program Lineage
No predecessor/successor lineage was recorded for this program element — no FY-to-FY transfer into or out of this line was stated in the ingested J-books, and none was inferred from the program structure.
Description
Description — Sidewinder (AIM-9X)
The AIM-9X Block II/II+ Sidewinder (AIM-9X Blk II/II+) continues the evolution of the AIM-9 series of missiles. This missile program delivers a launch and leave, air combat munition that uses passive Infrared (IR) energy to acquire and track enemy air targets and complements the radar guided Advanced Medium Range Air-to-Air Missile (AMRAAM). The inner-boundry missile provides first shot, first kill opportunities while conducting air combat maneuvering which is essential for aircrew survival. The AIM-9X provides these opportunities with unmatched offensive and defensive capabilities against threats within the inner boundary, even when IR countermeasures are employed. The AIM-9X also provides air superiority in the Beyond Visual Range (BVR) air-to-air battle. Anti-tamper features have been incorporated to protect improvements inherent in this design. The AIM-9X Block II missile is critical for projecting power and winning decisively against current and emerging threats. AIM-9X is a Post Milestone C, Acquisition Category IC (ACAT-IC) joint service program led by the Department of the Navy (DoN). In June 2011, the Milestone Decision Authority (MDA) established the AIM-9X Block II missile program which was approved for entry at Milestone C for Low Rate Initial Production (LRIP). The Block I program ended with the Sec 2366 A/B certification and Acquisition Program Baseline (APB) for AIM-9X Block II approval on December 23, 2011. In August 2015, the program received approval for Full Rate Production (FRP), and the APB was re-established. In December 2017, the program began to procure a third variant of the missile labeled the AIM-9X Block II PLUS (Block II+) to satisfy the requirements of the Joint Strike Fighter platform. This version of the missile is being produced on the same production line as the AIM-9X Block II missile. For contracting purposes, the nomenclature of the AIM-9X Block II missile is identified as AIM-9X-2 or AIM-9X-4 and the AIM-9X Block II+ missile is identified as AIM-9X-3. The AIM-9X-4 variants are the System Improvement Program (SIP) III configuration with upgraded hardware for obsolescence that cut into Lot 21. In February 2019, the APB for DoN and USAF was revised to increase total missile procurements from 6,000 to 11,635 missiles and to extend USAF missile procurements through 2035. The current APB quantity of 11,635 missiles is made up of 5,326 DoN missiles and 6,309 USAF missiles. Funding for this exhibit contained in PE 0207161F. Funding may be used to address Diminishing Manufacturing Source (DMS) issues. This requirement supports performance of a full financial audit as required by title 10 U.S.C. Chapter 9A, Sec 240-D. Differences in USAF and USN All-Up Rounds (AUR) unit cost is the result of the variations in procurement of missile types by each service.
Justification
Justification — Sidewinder (AIM-9X)
FY 2026 provides funding to procure the twelfth lot of FRP AIM-9X Block II (Blk II) missiles for the Air Force. The program unit costs are based on quantities procured by the DoN, USAF, and Army, as well as Foreign Military Sales (FMS) customers. Total Program quantity by service includes a mix of AUR missiles Captive Air Training Missiles (CATM). In FY 2026, the Air Force will procure 173 missiles. Specifically, 149 All-Up Rounds (AURs) and 24 Captive Air Training Missiles (CATMs). Funding may be used to resolve production Diminishing Manufacturing Sources (DMS)/Material Shortages/Obsolescence issues through studies, bridge buys, life of type buys, supplier/parts replacement and qualification activities to preserve future production capabilities and capacities. Note: Procurement quantities can change based on negotiated options/pricing bands and available funding, in accordance with Title 10, U.S Code Section 3069 BUY-TO-BUDGET ACQUISITION. Tranche funding received via FY 2025 reprogramming actions that is not included in the FY 2025 Enacted Amount contained in the above FY26PB P-40 Resource Summary table • Ukraine Tranche 28: 81.7M for Lot 25 AURs (177 AUR) • Israel Tranches 3 & 4: 23.0M for Lot 25 AURs (50 AUR) • Israel Tranches 6: 4.668M for Lot 26 AURs (10 AUR)
Budget Line Items(workbook-cited)
Exhibit P-1
| Account | Org | Type | Amount |
|---|---|---|---|
| Missile Procurement, Air Force | F | FY24 Actuals | $157.7M |
| Missile Procurement, Air Force | F | FY25 Enacted | $101.8M |
| Missile Procurement, Air Force | F | FY26 Disc. Request | $100.4M |
| Missile Procurement, Air Force | F | FY26 Total | $100.4M |
Budget Details(R-2/P-40 facts)
| Project | All Prior Years | FY24 Actuals | FY25 Total | FY26 Base | FY26 Request |
|---|---|---|---|---|---|
| Program Element | $1.64B | $157.7M | $101.8M | $100.4M | $100.4M |
No follow-the-dollar view — this program's awards haven't been crosswalked at high confidence (flows cover 17 of 1741 programs). why coverage is partial? →
Awards
No awards are linked to this program element at high confidence — the budget→award crosswalk only asserts links it can defend, and this line has none yet.
Lobbying Mentions
No Senate LDA lobbying filing in the tracked data mentions this program element by code or alias.
No research dossier for this program — dossiers cover 50 of 1741 programs, the largest fully J-book-detailed lines by FY2026 requested dollars. why no dossier here? →