On Wed, 10 Aug 2005 20:23:51 -0600, Newps wrote:



Blueskies wrote:
"Matt Whiting" wrote in message ...

Robert M. Gary wrote:

That's hard to believe. P&H really saves a lot of time when the runway
is really busy. The only way I can see this working is if pilot learn
how to do "cleared for immediate takeoff". Most controllers avoid this
because "immediate" for many pilots means sitting on the runway while
they go through their last checklist.

A lot of time? I don't see it. Unless the hold line is way back from the runway, I can typically taxi onto the
active and be rolling at full throttle in 10 seconds or less. All they need to do is clear me for takeoff when the
airplane that just landed is 10 seconds or so from clearing the runway and no time at all will be lost.

Matt


Don't think takeoff clearance can be made when there is still an aircraft on the runway...

Sure there can. The only requirement is that that other aircraft be off
the runway before you get on it and start your takeoff roll. It's
called anticipated separation and applies to any separation standard.
As long as the separation is there when it's needed all the rest is
irrelavant.

Many, many, many years ago when they wee mixing prop and jet airliners
I remember sitting in the right seat of a V-35 on departure from
Detroit Metro. (DTW). We were rapidly gaining on the big tail of a
Constellation (which getting bigger fast) while a 707 was getting
closer and closer behind. We lifted off (would have cleared the tail
even if they were on the runway) as the Constellation turned off. As
I recall the 707 either caught us or passed us on roll out. But then
again as time passes my memory of that 707 has it closer and closer.

Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com
Roger