Originally Posted by
megan
No it wont. The engine is a free turbine, so rotation of the N2 (prop) does nothing in getting the N1 to rotate. N1 has to be a minimum of 12% prior to introduction of fuel for a start.Power available would be minimal. From a flight manual.
Yes. If you had not cut my following sentence, you would see that that is exactly what I said. And so I went on to say that that is, from manuals I have seen, precisely what PT6A installations do not do.
What I actually wrote was:
It seems to me the reason it would go to fine pitch on a single-engine aircraft is to facilitate a (windmilling) restart. But that does not apply at all to free-turbine turboprops.
So I wonder why you felt a need to leave out my second sentence just to repeat the exact same thing I already said.
Bernd