All the DR data that might be needed for
reference...time, distance, course for each leg... is contained on the
computer generated flight plan

.... and if the computer's wrong, do you draw the wrong line on the
chart? We might be saying the same thing here, but I am advocating
drawing the line with =no= computer help whatsoever, and using a plastic
plotter to figure the course lines. This would be totally independent
of the computer, and then when the computer does its thing, you have a
reality check.

Jose
--
"Never trust anything that can think for itself, if you can't see where
it keeps its brain."
(chapter 10 of book 3 - Harry Potter).
for Email, make the obvious change in the address.