Teacherjh wrote:
KPHL, On departure, there is no conveinent place to do a runup (once you're in
the taxiway system), so ask first where to do it so you don't block traffic. I
didn't know this and expected to do a runup at the departure end of the runway.
Well, it was tight, and a few bizjets squeaked by while I was doing it; this
was clearly not the preferred method.

Yes, I try to do the run-up well before getting to the runway when at
large airports. Having said that, it is your prerogative to do it
there, but you tend to annoy a number of people that way. Often, if you
are taxing out and have at least one airplane in front of you, you'll
have plenty of time for your run-up while the other airplane is entering
the runway for take-off or just while waiting in line. However, if I
have to wait long on the ramp for my clearance, I'll do the run-up
before taxi as long as my engine is warmed up a little.


Matt