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Old November 11th 05, 04:17 AM
George Patterson
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Default why high to low, look out below?

wrote:

now decrease the temperature of the air surrounding the altimeter, and
since the colder air gets the more dense it gets, the atmospheric
pressure goes up. the altimeter doesnt know this. all it sees is an
increase in pressure, which it thinks means an decrease in altitude, so
it indicates say "-10 feet". this is directly contrary to the "high to
low look out below" because the altimeter is telling you you are 10
feet lower than you are, which is not what that saying is implying.


No, it's not contrary. The "high to low" means a flight from an area of high
pressure to low pressure, not high temperature to low temperature. When you
decreased the temperature, you increased the pressure, which means you're going
from low to high.

George Patterson
Drink is the curse of the land. It makes you quarrel with your neighbor.
It makes you shoot at your landlord. And it makes you miss him.