Pressure & temperature

|
| In Europe its the easiest way to fail an IR checkride by
failing to
| compensate for the ISA deviation in the winter and being
deemed to have
| busted the limits
|
| Our FAA isn't that smart.

Or that anal.



"Bee" wrote in message
...
| akjcbkJA wrote:
|
| "Bee" wrote in message
| ...
|
| S Green wrote:
|
|
| Have a look at the cold weather adjustments needed for
instruments
| approaches. As the temperature deviates from ISA
whilst the altimeter
| could be reading 200' you will actually be well under
and enough to
| bust a checkride. For example, an ISA deviation
of -15C is an
| correction of 12'. approximately 4ft/1000ft for each C
of
| difference. In this case, -15C ISA is only a
temperature of 0C or 32F.
|
|
| That isn't done for instrument approaches in the U.S.
except for VNAV
| final segments on RNP SAAAR IAPs.
|
|
| In Europe its the easiest way to fail an IR checkride by
failing to
| compensate for the ISA deviation in the winter and being
deemed to have
| busted the limits
|
| Our FAA isn't that smart.