During World War 2, Pip-Squeak was the code name of a radio-navigation system fitted to some RAF fighters.

T.8 with TACAN radio-navigation system and IFIS fitted, cannon and ranging radar removed.

Sonar was not included, but there was more attention given to recognition (IFF), direction-finding, and LORAN radio-navigation systems.

The design of GPS is based partly on similar ground-based radio-navigation systems, such as LORAN and the Decca Navigator, developed in the early 1940s and used during World War II.

In 1960, the Air Force proposed a radio-navigation system called MOSAIC (MObile System for Accurate ICBM Control) that was essentially a 3-D LORAN.

Its objective is to guarantee the interoperability of GALILEO with the existing radio-navigation systems, such as the American GPS or those in preparation, such as the Russian GLONASS.

At the attack ranges being considered, thousands of miles, radio navigation systems would not be able to offer both the range and the accuracy needed.

We recognise the case for a complementary and alternative satellite radio navigation system.

The electronics and software industries have everything to gain from the success of a radio navigation system.

The first of these was a radio navigation system which the Germans called Knickebein.

Wotan - alternative name for the Y-Gerät radio navigation system.

Terrain will also affect range and performance of radars and terrestrial radio navigation systems.

They gave up on this system after only a few small raids, considering the British to be "way ahead" and any further radio navigation systems hopeless.

The Lorenz beam blind landing system was an air radio navigation system in use from the late 1930s.

At 60 Group, Fennessy led the operational deployment of many radar and radio navigation systems.

The first radio navigation system to be operated by Bomber Command was Gee.

One particularly ironic development concerns the Sonne long-range radio navigation system set up by the Luftwaffe.

This would save the FAA millions of dollars every year in maintenance of their own radio navigation systems.

Neglecting any training in celestial navigation, they invested their efforts in radio navigation systems to solve the same problem.

In the 1970s, LORAN became the premier radio navigation system.

Multilateration is a common technique in radio navigation systems, where it is known as hyperbolic navigation.

These included a stylized airplane in flight following a radio navigation system from point to point and a stylized condor.

The Luftwaffe pioneered the use of distance-measuring radio navigation systems with their Y-Gerät system in 1941.

Testing units were also involved in final acceptance of various radar units, and did considerable basic research on antenna design and radio navigation system.

The Telefunken Kompass Sender was one of the earliest radio navigation systems to be deployed.

Other parts of the microwave radio band are used for radars, radio navigation systems, sensor systems, and radio astronomy.

The third project, which did not involve radar, ultimately became LORAN, the first worldwide radio navigation system.

The Rebecca/Eureka transponding radar was a short-range radio navigation system used for the dropping of airborne forces and their supplies.

Both of these systems are also commonly used with radio navigation systems; trilateration is the basis of GPS.

They became the major radio navigation system in the 1960s, when they took over from the older radio beacon and four-course (low/medium frequency range) system.

LORAN, low frequency terrestrial radio navigation system.