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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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== What you need to know == | == What you need to know == | ||
[[Image:Vwiki123.jpg|thumb|320px]] | [[Image:Vwiki123.jpg|thumb|320px]] | ||
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 main part of the needle points to the Actual Radio Aerial Position . | 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 main part of the needle points to the Actual Radio Aerial Position . | ||
In the RMI (Radio Magnetic Indicator) we can select a plain ADF frequency or the more information rich VOR signal, which is similar but has more information. It points to a | In the RMI (Radio Magnetic Indicator) we can select a plain ADF frequency or the more information rich VOR signal, which is similar but has more information. It also points | ||
directly to the antenna but can also be set to indicate a bearing from the antenna | |||
called a '''RADIAL''' | |||
If you have 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 '''Radial Box Input''' on the Nav 1 line . | |||
You can also plot a '''Radial''' using a Sectional , En-Route or Terminal Area Chart (TAC). | |||
The current setting in that input box should read 280 , change that to the heading you are on when the needle is pointing forward '''ie 12 O' Clock ''' plus or minus 180 degrees . | The current setting in that input box should read 280 , change that to the heading you are on when the needle is pointing forward '''ie 12 O' Clock ''' plus or minus 180 degrees . | ||
A radial is the direction in degrees '''FROM''' the actual | '''Again ! A radial is the direction in degrees '''''FROM''''' the actual VOR antenna or if you prefer , Aerial Mast . | ||