High altitude. thinner air, stability become more critical.
Higher speeds can actually get into Mach problems. The Duke
is certified to 30,000 feet and the P58 Baron to only
25,000.


--
James H. Macklin
ATP,CFI,A&P

wrote in message
oups.com...
| The spec sheet he included said 4 blade Hartzells.
|
| Interesting point about the Baron's behavior at 300kts -
at approx
| 50-60kts faster than the piston engined plane's cruise
speed I'm
| guessing trim might be a bit more critical. That alone
might make the
| plane twitchy, as it was never designed to go that fast.
|
| A quick check on ASO found a bunch of C90 and E90s for the
same dough,
| although they wouldn't have new engines as the converted
Barons and
| Dukes.
|