02-02-2006, 09:31 AM
Radar altimeter or he knows how high ASL the airport is. As an example I come in towards Spokane at 4000 fee, yet this is only 2500 feet
roughly due to how high up the airport is, it's something like 2300 odd feet Above Sea Level. Most airliners (if not all) have a radar
altimeter, and during landing it would be the job of whoever is not flying the plane to read that out to the person flying it, that way they know
just how high they really are. There's 2 reasons, both to do with accuracy, 1/ the Pilot needs the exact altitude, although he may be using
the ILS system especially in low visibility. 2/ the slightest sudden change in Barometric Pressure will throw the main altimeter reading off,
and this could be dangerous if you were solely relying on that to land.
roughly due to how high up the airport is, it's something like 2300 odd feet Above Sea Level. Most airliners (if not all) have a radar
altimeter, and during landing it would be the job of whoever is not flying the plane to read that out to the person flying it, that way they know
just how high they really are. There's 2 reasons, both to do with accuracy, 1/ the Pilot needs the exact altitude, although he may be using
the ILS system especially in low visibility. 2/ the slightest sudden change in Barometric Pressure will throw the main altimeter reading off,
and this could be dangerous if you were solely relying on that to land.
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Flying for Landmark Airlines.
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