RVSM from Cabin Class

during normal air refueling join ups.. the contrail may give away the
location
sometimes about 15 miles distant the aircraft can be picked up
especially with a sun glint
10 miles, very easily
BT

"Jose" wrote in message
om...
When you are at flight levels, due to the curvature of the earth, on
first apperance, the "higher" aircraft may appear to be lower,

The curvature of the earth is greater in the bugsmasher altitudes.

How far away are you seeing these airplanes?

Jose
--
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