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Boeing 777-200 Tutorial/KSFO-KLAX: Difference between revisions
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Boeing 777-200 Tutorial/KSFO-KLAX (view source)
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''' The Automatic Direction Finder uses a transmitter and aerial on the ground | ''' The Automatic Direction Finder uses a transmitter and aerial on the ground | ||
, an NDB (Non Directional Beacon )that allows the ADF instrument to point to the aerial that is tuned at a specified frequency . So..no matter what direction you are travelling in ...the needle points to the station . The RMI (a VOR beacon is used )is similar but has more information...it points to a selected direction 0-360 to the beacon you which once the needle is pointing at twelve o' clock or straight forward toward your selected VOR ( vor = Vhf {very high frequency) Omnidirectional Range-finder )you can press F12 and enter your current heading , in the course box on the nav 1 line , it should read 280 by default change that to the heading you are on when the needle is nicly pointing forward ie 12 bells this willset OBS line on the right screen (Radio Magnetic Indicator or RMI for short) ...try this on the long legs of this trip , you need to do this ! All of these instruments are combined in the left screen of the 777-200ER ''' | , an NDB (Non Directional Beacon )that allows the ADF instrument to point to the aerial that is tuned at a specified frequency . So..no matter what direction you are travelling in ...the needle points to the station . The RMI (a VOR beacon is used )is similar but has more information...it points to a selected direction 0-360 to the beacon you which once the needle is pointing at twelve o' clock or straight forward toward your selected VOR ( vor = Vhf {very high frequency) Omnidirectional Range-finder )you can press F12 and enter your current heading plus or minus 180 , in the course box on the nav 1 line , it should read 280 by default change that to the heading you are on when the needle is nicly pointing forward ie 12 bells this willset OBS line on the right screen (Radio Magnetic Indicator or RMI for short) ...try this on the long legs of this trip , you need to do this ! All of these instruments are combined in the left screen of the 777-200ER ''' | ||
'''Note headings work in 360 degrees ...0/360 is always north 90 east | |||
180 South and 270 west so adding 180 degrees to your salinas heading | |||
which sould be 140 will give a RADIAL of 320 no matter wheather you add or subtract ...in the radio comms dialog enter the heading plus or minus 180 deg. ''' | |||
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