F-35 Lightning II
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The F-35 Lightning II is a single-engine, single-pilot multirole combat aircraft designed to perform multiple tasks: air-to-ground strike, air-to-air combat, reconnaissance, and intelligence gathering. It is produced by the American company Lockheed Martin. The aircraft is classified as a "fifth-generation" fighter, meaning it combines reduced radar signature design, integrated avionics that fuse data from multiple sensors, and the ability to share information with other aircraft and ground forces.
The program resulted from a United States effort to replace various aircraft types used by the Air Force, Navy, and Marine Corps with a single design. For this reason, three variants were developed based on the same airframe but differing in their takeoff and landing characteristics.
Variants
The F-35A is the conventional takeoff and landing variant, which requires longer runways; it is the most widely sold variant. The F-35B has the ability to take off from short distances and land vertically (short takeoff, vertical landing), allowing it to operate from small ships and forward-deployed bases. The F-35C was designed for large aircraft carriers: its wings are larger and it is equipped with reinforced landing gear for carrier recovery.
How it works
The main distinction of the F-35 is not only its external shape. The aircraft carries numerous sensors—radar, infrared cameras, and electronic warfare detection equipment—which software then integrates so that the pilot sees a single composite picture of the surrounding environment. The pilot views this data on a helmet-mounted display rather than on multiple screens. Weapons are largely carried in internal bays to avoid increasing radar signature; when stealth is less critical, weapons can also be mounted on external pylons.
Program and debate
The F-35 is one of the most expensive weapons programs ever undertaken. Multiple countries have contributed funding to its development, and parts of the aircraft are manufactured in facilities located in different countries. The program has faced questions concerning schedule delays, cost growth, and lifetime operating expenses. Conversely, nations using it argue that integrated avionics and reduced radar signature provide capabilities beyond those of earlier aircraft.