Maritime patrol aircraft in the context of "Naval Air Station Brunswick"

A reconnaissance aircraft (colloquially, a spy plane) is a military aircraft designed or adapted to perform aerial reconnaissance with roles including collection of imagery intelligence (including using photography), signals intelligence, as well as measurement and signature intelligence. Modern technology has also enabled some aircraft and UAVs to carry out real-time surveillance in addition to general intelligence gathering.

Before the development of devices such as radar, military forces relied on reconnaissance aircraft for visual observation and scouting of enemy movement. An example is the PBY Catalina maritime patrol flying boat used by the Allies in World War II: a flight of U.S. Navy Catalinas spotted part of the Japanese fleet approaching Midway Island, beginning the Battle of Midway.

An aerial torpedo (also known as an airborne torpedo or air-dropped torpedo) is a torpedo launched from an aircraft into the water, after which the weapon propels itself to the target. They are generally smaller and lighter than submarine- or ship-launched torpedoes.

First used in World War I, aerial torpedoes were used extensively in World War II by torpedo bombers against large surface vessels, especially in aircraft carrier-dominated naval battles of the Pacific War. They remain in limited use today mainly for anti-submarine warfare (ASW) by maritime patrol aircraft and naval helicopters.

The CASA/IPTN CN-235 is a medium-range twin-engined transport aircraft that was jointly developed by CASA of Spain and Indonesian manufacturer IPTN. It is operated as both a regional airliner and military transport; its primary military roles include air transport and aerial surveillance.

Development of the CN-235 formally commenced in 1980 following the formation of the Airtech International joint venture on 17 October 1979. Its existence was publicly unveiled at the 1981 Paris Airshow. On 11 November 1983, the prototype CN-235 conducted its maiden flight; the first production aircraft followed on 19 August 1986. On 1 March 1988, the aircraft was put into regular service. Early on, the production of each aircraft was divided, 65% being performed by IPTN while the remainder was performed by CASA. Although the vast majority of CN-235s have been produced for military customers, several airlines have opted to buy limited numbers for regional services as well. In addition to the standard aircraft, specialised CN-235s have been configured into armed gunships and maritime patrol aircraft.

The ATR 72 is a twin-engine turboprop, short-haul regional airliner developed and produced in France and Italy by aircraft manufacturer ATR.The number "72" in its name is derived from the aircraft's typical standard seating capacity of 72 passengers.The ATR 72 has also been used as a corporate transport, cargo aircraft, and maritime patrol aircraft.

To date, all of the ATR series have been completed at the company's final assembly line in Toulouse, France; ATR benefits from sharing resources and technology with Airbus SE, which has continued to hold a 50% interest in the company. Successive models of the ATR 72 have been developed. Typical updates have included new avionics, such as a glass cockpit, and the adoption of newer engine versions to deliver enhanced performance, such as increased efficiency and reliability and reductions in operating costs. The aircraft shares a high degree of commonality with the smaller ATR 42, which remains in production as of 2025.