The LFR remained as the main aerial navigation system in the U.S. and other countries until the 1950s, when it was replaced by VHF-based VOR technology.
•
The LFR remained as the main aerial navigation technology until it was replaced by the VOR system in the 1950s and 1960s.
VHF omnidirectional range(VOR) is an example of a legacy system to determine relative location.
The associated VOR/DME, YXI, continues in operation and is associated with several airways.
Rekken is also known in international aviation, by the VHF omnidirectional range called 'Rekken' (RKN).
Cascade Range | Range Rover | Great Dividing Range | mountain range | Range Busters | White Sands Missile Range | Iron Range | Whalley Range | VHF radio | VHF omnidirectional range | Woomera Test Range | Range Rover Sport | Oregon Coast Range | Hamersley Range | Sangre de Cristo Range | Rimutaka Range | Northern Range | McIlwraith Range | Lost River Range | Kolovrat Range | Knuckles Mountain Range | Finisterre Range | Eastern Range | Clwydian Range | Brooks Range | Bregaglia Range | Swan Range | Shooting range | Range Resources | Preakness Range |
Born in Samara, Russia, Alford invented and developed antennas for radio navigation systems, now used for VHF omnidirectional range and instrument landing systems.