yep, but like i say, i cant remember offhand, and i think it was either the
P51 or the P40, that had that trouble; no doubt there was a good valiud
reason at the time.
Its a similar sort of thing to the B17 at Duxford, they dont use the turbo's
because it tears hell out of the engines; thats what i was told by a
mechanic who was working on one of the engines at the time. They were
changing an engine and needed a certain part which was still on the a/c at
the time and the chap gave me an impromptu guided tour around it, as well as
inside; real nice chap.
I s'pose they dont fly the B17 as much as it would normally be operated so
they dont need the turbos and because they dont carry any heavy ordnance
these days either, what with the war being over and all that. lol
But i wonder, they obviously choose what weather they fly, as the turbo was
used to guard against carb' icing conditions as well as many other uses such
as more power.
I have a very interesting video i bought at an airshow called flying the B17
and it goes into the induction system at great length, real interesting
stuff.
Wasnt there only one kind of allison engine i.e. the inline engine, or are
you talking about the one in the C130 hercules?!
"Kevin Brooks" wrote in message
...

"M. H. Greaves" wrote in message
...
Cant remeber exactly but werent the allison engines unsuitable because
they
were no good above a certain altitude!?

The P-38 had a ceiling of forty thousand feet with Allison inlines.

Brooks

"Stephen Harding" wrote in message
...
Saw a photo yesterday of a WWII B-17 test aircraft powered
with four Allison inline engines as opposed to the usual
Wright Cyclones.

Understand the modification added about 800 hp to the
aircraft.

Anyone know why the modification didn't go anywhere?
The usual suspects? Too much disruption to B-17
production? Engines needed by P-38, P-39, P-40?

Sorta "Lanc looking".


SMH