Lockheed Martin F-35 Lightning II

F-35 Lightning II
F-35A off the coast of Northwest Florida.
F-35A Lightning II
RoleStealth multirole fighter
National originUnited States
ManufacturerLockheed Martin Aeronautics
First flight15 December 2006 (F-35A)
IntroductionF-35B: 31 July 2015 (USMC)[1][2][3]
F-35A: 2 August 2016 (USAF)[4]
F-35C: 1 January 2018 (USN)[5]
StatusIn service
Primary usersUnited States Air Force
United States Marine Corps
United States Navy
Royal Air Force
See Operators section for others
Number built320+ as of 11 September 2018[6]
Program costUS$1.508 trillion (through 2070 in then-year dollars), US$55.1B for RDT&E, $319.1B for procurement, $4.8B for MILCON, $1123.8B for operations & sustainment (2015 estimate)[7]
Unit cost
F-35A: $89.2M (low rate initial production lot 11 (LRIP 11) including F135 engine, cost in 2020 to be $80M)[8]
F-35B: US$115.5M (LRIP 11 including engine)[8]
F-35C: US$107.7M (LRIP 11 including engine)[8]
Developed fromLockheed Martin X-35

The Lockheed Martin F-35 Lightning II is a family of single-seat, single-engined, all-weather stealth multirole fighters. The fifth-generation combat aircraft is designed to perform ground-attack and air-superiority missions. It has three main models: the F-35A conventional takeoff and landing (CTOL) variant, the F-35B short take-off and vertical-landing (STOVL) variant, and the F-35C carrier-based catapult-assisted take-off but arrested recovery (CATOBAR) variant. The F-35 descends from the Lockheed Martin X-35, the winning design of the Joint Strike Fighter (JSF) program. It is built by Lockheed and many subcontractors, including Northrop Grumman, Pratt & Whitney, and BAE Systems.

The United States principally funds F-35 development, with additional funding from other NATO members and close U.S. allies, including the United Kingdom, Italy, Australia, Canada, Norway, Denmark, the Netherlands, and Turkey.[9][10] These funders generally receive subcontracts to manufacture components for the aircraft; for example, Turkey is the sole supplier of several F-35 parts.[11][12] Several other countries have ordered, or are considering ordering, the aircraft.

As the largest and most expensive military program, the F-35 is the subject of much scrutiny and criticism in the U.S. and in other countries.[13] In 2013 and 2014, critics argued that the plane was "plagued with design flaws", with many blaming the procurement process in which Lockheed was allowed "to design, test, and produce the F-35 all at the same time," instead of identifying and fixing "defects before firing up its production line".[13] By 2014, the program was "$163 billion over budget [and] seven years behind schedule".[14] Critics also contend that the program's high sunk costs and political momentum make it "too big to kill".[15]

The F-35 first flew on 15 December 2006. In July 2015, the United States Marines declared its first squadron of F-35B fighters ready for deployment;[16][17] the U.S. Air Force followed suit with its first squadron of F-35As in August 2016.[18] In 2018, the F-35 was used in combat for the first time, by the Israeli Air Force.[19][20]

The United States plans to buy 2,663 F-35s, which will provide the bulk of the crewed tactical airpower of the U.S. Air Force, Navy, and Marine Corps in coming decades. Deliveries of the F-35 for the U.S. military are scheduled until 2037[21] with a projected service life up to 2070.[22]


F-35 development started in 1992 with the origins of the Joint Strike Fighter program and is to culminate in full production in 2018.[23] The X-35 first flew on 24 October 2000 and the F-35A on 15 December 2006. The F-35 was developed to replace most US fighter jets with variants of one design common to all branches of the military. It was developed in co-operation with a number of foreign partners, and unlike the F-22 Raptor, intended to be available for export. Three variants were designed: the F-35A (CTOL), the F-35B (STOVL), and the F-35C (CATOBAR). Despite being intended to share most of their parts to reduce costs and improve maintenance logistics, by 2017, the design commonality was only 20%.[24] The program received considerable criticism for cost overruns during development and for the total projected cost of the program over the lifetime of the jets. By 2017, the program was expected over its lifetime (until 2070) to cost $406.5 billion for acquisition of the jets and $1.1 trillion for operations and maintenance.[25] A number of design deficiencies were alleged, such as carrying a small internal payload, inferior performance to the aircraft being replaced, particularly the F-16, and the lack of safety in relying on a single engine, and flaws were noted such as vulnerability of the fuel tank to fire and the propensity for transonic roll-off (wing drop). The possible obsolescence of stealth technology was also criticized.

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български: F-35
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Nederlands: F-35 Lightning II
日本語: F-35 (戦闘機)
русский: F-35
کوردی: ئێف-٣٥
српски / srpski: F-35 лајтнинг II
srpskohrvatski / српскохрватски: F-35 Lightning II
தமிழ்: எப்-35
українська: Lockheed Martin F-35 Lightning II