Bob: to your earlier post about some a/c starting rolling with brakes on:
well it's quite common on some types of a/c. The Reims Rocket, for example,
at full throttle will jump on ahead no matter how much brakes you apply.
During engine test, the only way we keep it from moving is to put massive
chocks and tie the whole thing down (and if possible, rev it at the lowest
speed possible for a successful test)... Types (strength) of brakes are
fitted in relation to the landing speed and a/c MTOW - i.e. in relation to
the kinetic energy and inertia the a/c has upon landing (simply speaking).
They are not in relation (at least not directly) to engine power. So, if
you, say, put a 250 HP engine into a Skyhawk, rev it up to max RPM and hold
the brakes, it'll start edging forward slowly.

Triple Delta

"Bob Ingraham" wrote in message
om...
snip What approach speed do you use on that Spitfire.

I'm supposed to watch my speed in addition to altitude, attitude, yaw,
the horizon, and enjoy the scenery too? And then there's the question
of German's lurking about, waiting to pounce on me. But I guess they'd
probably have a hard time getting all the way to Vancouver.... ;^)
Any, I certainly wasn't going very fast. I'd throttled back to about
1/3 power, had full flaps, and the approach was from a low altitude,
not a power dive.

Another question (I have lots of them, but I'll end with this one): I
can barely get the Concorde to lift off the runway. It's hard to
believe that the main runway at Vancouver isn't long enough. In fact,
an actual Concorde visited Vancouver during Expo '86 and must have
used that runway. Am I doing something wrong. There don't seem to be
any flaps or controls for flaps.

Do tail-less deltas even have flaps? I know Concorde has none. Are
you sure you're using full thrust and no breaks. Also, what is your
take-off speed? Remember that Sacremento ice cream store disaster of
the early 1970's?

snip No, I don't recall the ice cream store disaster. What
happenened? I tried another takeoff and watched the speed dial. I was
at 250 knots, and still sticking firmly to the runway, and then the
mud flats, and then careering madly across Georgia Strait. X-Plane
disasters are pretty silly.

Bob