thanks norman
thank you....
your post was very usefull...
i have used the 3x method during the descent but i have never used it for the approach...yesterday i cross check it during the ils...and it was quite accurate!
only one thing made me wonder....i had 3 landings when the elevation of the runway was 80 feet...and it come down to be almost spot on ( maybe there was an error of 10 feet max) but when i tested it on an airport where the elevation was sea level, the error was much bigger....(80 feet) curiously enough!
any ideas why?
thanks
austra