On Thu, 30 Dec 2004 02:46:15 GMT, wrote:

The Zander flight computer performs a constant L/D calculations throughout a
flight. The L/D is presented numerically on the screen. All you need to do
is note the L/D, flap setting and speed at any particular time.

.... and the EXACT airmass rise/fall.
This is where the task becomes impossible with current technology.


Bye
Andreas