Lockheed Martin F-22 Raptor in the context of "Skunk Works"

Fighter aircraft (early on also pursuit aircraft) are military aircraft designed primarily for air-to-air combat. In military conflict, the role of fighter aircraft is to establish air superiority of the battlespace. Domination of the airspace above a battlefield permits bombers and attack aircraft to engage in tactical and strategic bombing of enemy targets, and helps prevent the enemy from doing the same.

The key performance features of a fighter include not only its firepower but also its high speed and maneuverability relative to the target aircraft. The success or failure of a combatant's efforts to gain air superiority hinges on several factors including the skill of its pilots, the tactical soundness of its doctrine for deploying its fighters, and the numbers and performance of those fighters.

The Lockheed Martin Corporation is an American defense and aerospace manufacturer. It is headquartered in North Bethesda, Maryland, United States. The company was formed by the merger of Lockheed Corporation with Martin Marietta on March 15, 1995.

Lockheed Martin operates 4 divisions: Lockheed Martin Aeronautics (39% of 2024 revenues), which includes Skunk Works, the F-35 Lightning II strike fighter, the Lockheed C-130 Hercules military transport aircraft, the F-16 Fighting Falcon, and the F-22 Raptor; Lockheed Martin Missiles and Fire Control (18% of 2024 revenues), which includes the MIM-104 Patriot surface-to-air missile, the Terminal High Altitude Area Defense, the M270 Multiple Launch Rocket System, the Precision Strike Missile, the AGM-158 JASSM air-launched cruise missile, the AGM-158C LRASM anti-ship missile, the AGM-114 Hellfire, the Apache fire-control system, the Sniper Advanced Targeting Pod, Infrared search and track, and support services for special forces; Lockheed Martin Rotary and Mission Systems (24% of 2024 revenues), which includes Sikorsky Aircraft such as the Sikorsky UH-60 Black Hawk, Sikorsky HH-60 Pave Hawk, Sikorsky VH-92 Patriot, Sikorsky CH-53K King Stallion, and Sikorsky SH-60 Seahawk, the Aegis Combat System, Littoral combat ships, Freedom-class littoral combat ships, River-class destroyers, and the C2BMC missile defense program; and Lockheed Martin Space (18% of 2024 revenues), which includes the UGM-133 Trident II ballistic missile, the Orion spacecraft, the Next-Generation Overhead Persistent Infrared, GPS Block III, hypersonic weapons and transport layer programs and the Ground-Based Interceptor.

Stealth aircraft are designed to avoid detection using a variety of technologies that reduce reflection/emission of radar, infrared, visible light, radio frequency (RF) spectrum, and audio, collectively known as stealth technology. The F-117 Nighthawk was the first operational aircraft explicitly designed around stealth technology. Other examples of stealth aircraft include the B-2 Spirit, the B-21 Raider, the F-22 Raptor, the F-35 Lightning II, the Chengdu J-20, the Shenyang J-35, the Sukhoi Su-57 and the Bayraktar Kızılelma.

While no aircraft is completely invisible to radar, stealth aircraft make it more difficult for conventional radar to detect or track the aircraft effectively, increasing the odds of an aircraft avoiding detection by enemy radar and/or avoiding being successfully targeted by radar guided weapons. Stealth is a combination of passive low observable (LO) features and active emitters such as low-probability-of-intercept radars, radios and laser designators. These are typically combined with operational measures such as carefully planning mission maneuvers to minimize the aircraft's radar cross-section (RCS), since common hard turns or opening bomb bay doors can more than double an otherwise stealthy aircraft's radar return. Stealth is accomplished by using a complex design philosophy to reduce the ability of an opponent's sensors to detect, track, or attack the stealth aircraft. This philosophy takes into account the heat, sound, and other emissions of the aircraft which can also be used to locate it. Sensors are made to reduce the impact of low observable technologies and others have been proposed such as IRST (infrared search and track) systems to detect even reduced heat emissions, long wavelength radars to counter stealth shaping and RAM focused on shorter wavelength radar, or radar setups with multiple emitters to counter stealth shaping. However these have disadvantages compared to traditional radar against non-stealthy aircraft.

A navigation light, also known as a running or position light, is a source of illumination on a watercraft, aircraft or spacecraft, meant to give information on the craft's position, heading, or status. Some navigation lights are colour-coded red and green to aid traffic control by identifying the craft's orientation. Their placement is mandated by international conventions or civil authorities such as the International Maritime Organization (IMO).

A common misconception is that marine or aircraft navigation lights indicate which of two approaching vessels has the "right of way" as in ground traffic; this is not precisely true, as aircraft and watercraft cannot stop to allow each other to pass, as ground vehicles do. However, the red and green colours do indicate which vessel has the duty to "give way" (change course or speed) or to "stand on" (hold course and speed). Consistent with the ground traffic convention, the rightmost of the two vehicles is usually given stand-on status and the leftmost must give way. Therefore a red light is used on the port (left) side to indicate "you must give way"; and a green light on the starboard (right) side indicates "I will give way; you must stand on". In case of two power-driven vessels approaching head-on, both are required to give way.

An air superiority fighter (also styled air-superiority fighter) is a fighter aircraft designed to seize control of enemy airspace by establishing tactical dominance (air superiority) over the opposing air force. Air-superiority fighters are primarily tasked to perform aerial combat against agile, lightly armed aircraft (most often enemy fighters) and eliminate any challenge over control of the airspace, although some (e.g. strike fighters) may have a secondary role for air-to-surface attacks.