"john smith" wrote in message ...
:
: One of the things the POH does say, is that the fast way to get down is
: to extend the gear and full flaps.
: When you are taking advantage of the turbocharger to go higher, getting
: down from over 10,000 to lower altitudes while you're on fire becomes
: urgent.
: The fastest I have descended, intentionally, is 1300 fpm. That is going
: to require at least 8 minutes. When you're on fire, that's a LOOOONG
: time!
: Can I get 2000 fpm or more? I don't know, I haven't tried it.
: At 1300 fpm and the power pulled back, I was up into the yellow arc in
: smooth air.
: What is the airspeed at 2000 fpm? How long can you fly in the red arc
: and not exceed V-dive without breaking the airplane? Theoretically, in
: smooth air, forever.
: But you have to level out gradually to avoid overloading with G's and
: bleed off that airspeed to land. Thats going to add more time.



This is what the steep spiral is for...

Also, there is no such thing as 'the red arc', it is red line Vne, don't wanna exceed it...