Identification friend or foe

Identification, friend or foe (IFF) is an identification system designed for command and control. It uses a transponder that listens for an interrogation signal and then sends a response that identifies the broadcaster. IFF systems usually use radar frequencies, but other electromagnetic frequencies, radio or infrared, may be used. It enables military and civilian air traffic control interrogation systems to identify aircraft, vehicles or forces as friendly and to determine their bearing and range from the interrogator. IFF is used by both military and civilian aircraft. IFF was first developed during World War II, with the arrival of radar, and several friendly fire incidents.

Cook–Craigie plan

In aviation, the Cook–Craigie plan is an approach to the development process of civil and military aircraft, designed to reduce the time needed to bring a new design into service. In the late 1940s, US Air Force Major Generals Laurence C. Craigie

Time between overhauls

Time between overhauls is the manufacturer's recommended number of running hours or calendar time before an aircraft engine or other component requires overhaul

Jagdschloss radar

Jagdschloss, officially the FuG 404, was the designation of a German early warning and battle control radar developed just prior to the start of World War II. Although it was built in limited numbers, Jadgschloss is historically important as the first

Ferranti Mercury

The Mercury was an early commercial computer from the mid-1950s built by Ferranti. It was the successor to the Ferranti Mark 1, adding a floating point unit for improved performance, and increased reliability by replacing the Williams tube memory with

Lycoming IO-580

The Lycoming IO-580 engine is a horizontally opposed, six-cylinder aircraft engine featuring three cylinders per side, manufactured by Lycoming Engines

Strojnik S-2

The Strojnik S-2 is an American high-wing, single-seat motor glider that was designed and built by Aleš Strojnik

Frequency meter

A frequency meter is an instrument that displays the frequency of a periodic electrical signal. Various types of mechanical frequency meters were used in the past, but since the 1970s these have almost universally been replaced by digital frequency

Modcomp

Modcomp, Inc., was a small minicomputer vendor that specialized in real-time applications. They were founded in 1970 in Fort Lauderdale, Florida. In the 1970s and 1980s, they produced a line of 16 and 32-bit mini-computers. Through the 1980s, Modcomp lost

Aerospaceplane

The US Air Force's Aerospaceplane was a basic research project led by Weldon Worth at the Wright-Patterson AFB concerning the design of future recoverable spaceplanes. It encompassed a variety of concepts, designs and research projects from 1958, but was

France Bleu Pays de Savoie

France Bleu Pays de Savoie, sometimes referred to as France Bleu Savoie, is a generalist radio station based in Chambéry. The radio station serves the departments of Savoie and Haute-Savoie, though it can also be received as far as Geneva, Lyon, and in