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Pratt & Whitney Weapon Systems

Pratt & Whitney is a United States aerospace propulsion builder and RTX business whose military-engine portfolio includes the F135 engine that powers all variants of the F-35 Lightning II, including the cataloged F-35C.

1 weapon systems

Pratt & Whitney's catalog relevance is its propulsion role rather than final aircraft assembly. The company designs, manufactures, and services aircraft engines and auxiliary power units, with military engines used across U.S. and allied combat, transport, tanker, and legacy fleets.

For this archive, Pratt & Whitney is attached to the F-35C through the F135 propulsion system. Pratt & Whitney identifies the F135 as the engine for all three F-35 variants and continues to produce, sustain, and upgrade the engine family under RTX.

military aircraft enginesfighter propulsionengine sustainmentcommercial aircraft enginesauxiliary power units

Notable Systems

F135 engine

Afterburning fighter engine for all three F-35 Lightning II variants, including the F-35C carrier variant represented in the catalog.

Sources: Pratt & Whitney F135 Engine, Pratt & Whitney F135 History

F119 engine

Fifth-generation fighter engine for the F-22 Raptor, listed by Pratt & Whitney among its military engine families.

Sources: Pratt & Whitney Military Engines

F100 engine family

Military engine family selected for F-15 and F-16 aircraft operated by multiple air forces.

Sources: Pratt & Whitney Military Engines

Builder History

  1. Pratt & Whitney Aircraft Company founded

    Frederick B. Rentschler founded Pratt & Whitney Aircraft Company; its first engine, the R-1340 Wasp, became an important early military and commercial aviation engine.

    Sources: Pratt & Whitney Our Story

  2. Jet-propulsion initiative begins

    Pratt & Whitney began its gas-turbine and jet-propulsion initiative during World War II and built facilities to support wartime engine development.

    Sources: Pratt & Whitney Our Story

  3. First production F135 delivered

    Pratt & Whitney delivered the first production F135 engine, starting the production propulsion line for the F-35 fleet.

    Sources: Pratt & Whitney F135 History

  4. F135 lots 18-19 contract definitized

    RTX announced a Pratt & Whitney F135 lots 18-19 award totaling $6.6 billion for production engines, spares, engineering resources, and production support.

    Sources: RTX F135 Lots 18-19 Contract

Subsidiaries
Pratt & Whitney Canada
Website links
Official websiteMilitary enginesF135 engine

Official Pratt & Whitney and RTX pages are used for corporate and product context. The builder image is limited to a public-domain U.S. Air Force F135 test photo because official RTX product and facility media did not expose reusable licensing terms suitable for catalog reuse.

Builder Sources

  • Pratt & Whitney We Are Pratt & WhitneyPublisher: Pratt & Whitney / RTX | Note: Supports company overview, global propulsion focus, employee/customer scale, and RTX business context. | Accessed: 2026-06-21
  • Pratt & Whitney Our StoryPublisher: Pratt & Whitney / RTX | Note: Supports founding in 1925, R-1340 Wasp background, 1928 Canadian division context, wartime production, and jet-propulsion timeline. | Accessed: 2026-06-21
  • Pratt & Whitney Contact UsPublisher: Pratt & Whitney / RTX | Note: Supports Pratt & Whitney corporate headquarters at 400 Main Street, East Hartford, Connecticut. | Accessed: 2026-06-21
  • Pratt & Whitney Military EnginesPublisher: Pratt & Whitney / RTX | Note: Supports military-engine focus and listed engine families including F135, F119, F100, F117, TF33, and PW4062/F139. | Accessed: 2026-06-21
  • Pratt & Whitney F135 EnginePublisher: Pratt & Whitney / RTX | Note: Supports F135 role powering all three F-35 variants, production fleet scale, thrust class, and engine capability context. | Accessed: 2026-06-21
  • Pratt & Whitney F135 HistoryPublisher: Pratt & Whitney / RTX | Note: Supports first production F135 delivery in 2009 and F135 use across U.S. and allied F-35 fleets. | Accessed: 2026-06-21
  • RTX F135 Lots 18-19 ContractPublisher: RTX | Note: Supports RTX ownership wording and the 2026 F135 lots 18-19 production contract context. | Accessed: 2026-06-21
  • Wikimedia Commons F135 Test ImagePublisher: Wikimedia Commons | Note: Image provenance and licensing source: U.S. Air Force public-domain image of a Pratt & Whitney F135 engine during AEDC testing, directly tied to this builder's catalog-relevant propulsion role. | Accessed: 2026-06-21

Category

Aircraft & UAVs

Crewed aircraft, drones, and loitering munitions.

1
F-35C Lightning II, Carrier-based stealth multirole fighter, Aircraft & UAVsYemen Civil War, United States-Iran ConflictF-35C Lightning IICarrier-based stealth multirole fighterBuilt in: United StatesThe F-35C Lightning II is the carrier variant of the Joint Strike Fighter, built for catapult launches and arrested landings with larger wings, folding wingtips, strengthened landing gear, internal fuel for long-range carrier operations, and a sensor suite intended for strike, air-to-air, reconnaissance, and electronic-warfare missions. U.S. Marine Corps F-35Cs made the variant's first documented combat strikes against Houthi targets in Yemen in 2024, and an F-35C was later reported shooting down an Iranian Shahed-139 drone near USS Abraham Lincoln in 2026.