LORAN (long-range radio navigation)
LORAN (navegación por radio de largo alcance)
- Date
- 1942-1943 · confidence high
- Place
- MIT Radiation Laboratory, Cambridge, Massachusetts, United States
- Credited to
- Alfred Loomis and the MIT Radiation Laboratory
- Field
- Movement
What it is
A hyperbolic system in which a ship or aircraft finds its position by measuring the time difference between radio pulses from shore stations. The US Navy deployed it in 1943 with a range of hundreds of kilometres.
LORAN-C was shut down in the United States in 2010 and in Europe in 2015, replaced by GPS.
What it led to
- LORAN-C and Omega
- commercial navigation until the GPS era
- Decca systems