Gee

VAR

These systems use signals transmitted from several transmitters around the globe. Since the radio signals travel at the same speed of 186000 miles / sec, the signals from the different ground transmitters will not be received on the aircraft at the same time.

A calculation based on the reception time difference between these signals from different ground stations results in a navigational position fix. The aircrew use a Cathode Ray Tube (CRT) to read these radio signals. [James P.169] [US Navy Air Nav manual P.345]
 

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These systems use signals transmitted from several transmitters around the globe. Since the radio signals travel at the same speed of 186000 miles / sec, the signals from the different ground transmitters will not be received on the aircraft at the same time.

A calculation based on the reception time difference between these signals from different ground stations results in a navigational position fix. The aircrew use a Cathode Ray Tube (CRT) to read these radio signals. [James P.169] [US Navy Air Nav manual P.345]
 

LORAN

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The LOng RAnge Navigation system [LORAN] was developed during WW11. The Loran equipment fitted to the Royal Australian Air Force's [RAAF] B-24 Liberators weighed 63 lbs. By way of comparison, the radio compass was listed as 50lbs and the VHF radio was 90 lbs. [Wilson S 1992 P.146]

 

Page last updated on 01/01/04

Navigation
VFR
IFR
Dead Reckoning
Night Beacons
ADF
GDF
Loran/Gee
VAR
DME&ILS
Celestial Navigation
FAN