Testing your glide. Are people doing this?

"David Megginson" wrote in message
...
"Michael Nouak" writes:

NOT TRUE!! A B-747 has about the same glide ratio as the B-707s
that I flew for 17 years, 20:1 or better. From 35-37,000'(6nm),
we could do 125nm easily.

I'm not saying you're wrong, however I am curious: You "could do 125nm
easily" how? With the engines shut down? 'Cause that's what a glide is
to
me. At idle you're still producing thrust, even more so a flight idle.

So, how did you achieve this ratio? In a true glide (presumable tried
out in
a sim), or at flight idle? And if the latter, what would be the
difference
in glide ratio compared to a true glide?

A real life example:

http://www.wadenelson.com/gimli.html

They managed about an 11:1 glideslope, but the flight crew had no
documentation on optimal glide speed for a 767 (they just guessed 220
kias), and they left the engines windmilling.

Great story and outcome, I sure hope that they didn't violate any aviation
regulations though, wouldn't want them to be accussed of being "law
breakers"! LOL

That helicopter story was great also, it took real courage to do that.

Dashii


All the best,


David