"Steve R." wrote:

The LPT is not physically connected to the compressor; only to the prop
gearbox. The pitch control unit routes oil through the Beta tube to the prop
to set it to feather. Since the LPT isn't connected to the HPT or the
compressor, it can turn at a much slower speed. That is the reason the
engine spools up faster than the T-56 also. If you're doing a man on the
stand you apply a bit of reverse pitch because in hotel mode you still have
some prop blast.
Steve R.


Ok, so it's 'not' a T-56 then...do you know what it is?...and
what RPM does the prop turn at in that mode?...most
interesting...
--

-Gord.