F-35 Lightning II

F-35 Lightning II is a family of single-seat, single-engine, all-weather stealth multirole combat aircraft designed for air superiority and strike missions. Developed by Lockheed Martin as the primary winner of the Joint Strike Fighter program, it is intended to perform close air support, battlefield air interdiction, and air defense suppression roles. The aircraft's advanced sensor fusion, network-enabled capabilities, and low observability represent a generational leap in tactical aviation, with three main variants serving multiple branches of the United States Armed Forces and allied nations.

Development and procurement

The origins of the program trace back to the early 1990s with studies like the Joint Advanced Strike Technology program, which sought a common aircraft for the United States Department of Defense. The formal Joint Strike Fighter program competition was launched in 1996, pitting the Lockheed Martin X-35 against the Boeing X-32. After a rigorous fly-off evaluation, the Lockheed Martin design was selected in October 2001. Key international partners, including the United Kingdom, Italy, and the Netherlands, joined during the System Development and Demonstration phase under memoranda like the 2006 Memorandum of Understanding. The program has been managed by the F-35 Joint Program Office and has faced significant scrutiny over costs and schedules from the Government Accountability Office and the United States Congress.

Design and variants

The airframe incorporates advanced carbon-fiber composites and uses a Chined fuselage design to reduce its Radar cross-section. It is powered by a single Pratt & Whitney F135 afterburning turbofan engine, developed from the Pratt & Whitney F119 used in the Lockheed Martin F-22 Raptor. The three primary variants are the CTOL F-35A, the STOVL F-35B featuring a Rolls-Royce LiftSystem, and the CATOBAR-capable F-35C with larger wings for carrier operations. Core avionics include the Northrop Grumman AN/APG-81 AESA radar, the BAE Systems AN/ASQ-239 Barracuda electronic warfare system, and the Lockheed Martin Distributed Aperture System providing spherical infrared tracking.

Operational history

The United States Marine Corps declared Initial Operational Capability with its F-35B in July 2015, followed by the United States Air Force with the F-35A in August 2016 and the United States Navy with the F-35C in February 2019. The aircraft saw its first combat deployment in 2018, when USMC F-35Bs from the USS ''Essex'' conducted airstrikes in Afghanistan. The Israeli Air Force has employed its F-35I Adir in multiple operations in the Middle East, while the Royal Air Force and the Italian Air Force have deployed their aircraft on NATO air policing missions. The platform has participated in major exercises like Red Flag and has been deployed to regions including the Indo-Pacific and Eastern Europe.

Operators

Primary operators include the United States Air Force, United States Marine Corps, and United States Navy. Key international operators with delivered aircraft are the Royal Air Force, the Italian Air Force, the Royal Australian Air Force, the Royal Norwegian Air Force, the Japan Air Self-Defense Force, and the Republic of Korea Air Force. Other participating nations in the program include Denmark, Canada, and Belgium, with future deliveries planned for Germany, Switzerland, and Finland. Several aircraft are operated from key bases such as RAF Marham, Luke Air Force Base, and Marine Corps Air Station Iwakuni.

Specifications (F-35A)

* **Crew:** 1 * **Length:** 51.4 ft (15.7 m) * **Wingspan:** 35 ft (10.7 m) * **Height:** 14.3 ft (4.36 m) * **Empty weight:** 29,300 lb (13,290 kg) * **Max takeoff weight:** 70,000 lb (31,800 kg) * **Powerplant:** 1 × Pratt & Whitney F135-PW-100 afterburning turbofan * **Maximum speed:** Mach 1.6 (1,200 mph, 1,930 km/h) * **Combat range:** 770 nmi (1,420 km) on internal fuel * **Ferry range:** 1,650 nmi (3,060 km) with external drop tanks * **Service ceiling:** 50,000 ft (15,000 m) * **Armament:** Internal bay for AIM-120 AMRAAM and GBU-31 Joint Direct Attack Munition, or AIM-9 Sidewinder; external hardpoints for additional ordnance up to 18,000 lb (8,100 kg).

Category:Military aircraft