On Tue, 13 Apr 2004 02:50:42 GMT, "tony zambon"
wrote:

got into a discussion at the old watering hole tonight about the base
altitude of the hemispherical cruising altitude( you know, 3000 agl). but
the question came up what do you do in mountainous terrain where the ground
elevation can change thousands of feet in just a few miles. how do you
determine the lowest cruising altitude in conformance with the
hemispherical cruising altitude when the ground elevation is always changing
by thousands of feet?

If you are flying is such a fashion as to stay under 3000 feet agl
that must make for quite a ride in the mountains:-))

Basically if you are high enough to use the rule over the high spots,
there is no need to worry about the low spots.

Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com




tony zambon
grumman 9941L