"Scott Skylane" wrote:

"I have some friends that fly 210's for Flight Express. Lycoming is
providing a new engine at a very modest price to Flight Express and
in return they are debugging and refining the engine for Lycoming.
The engine is an IO-550P3 and produces 325 HP. The engine has the
induction system on top and the exhaust on bottom like the 550
Continental. The pilots say this is a great engine and runs very cool
with no cylinder cracking problems. Could this be the engine for
Cessna's Cirrus Killer?"

Tommy Lee at CFO



Well, a quick search of the FAA database shows no Type Certificate for
a Lycoming IO-550, nor any STC's belonging to Lycoming, or Flight
express, or anyone else, for doing such an installation (both of which
would be required for use in a commercial operation). I *did* see,
however, STC SA00274AT, modified Sept. 29th of this year, for
installing a *Continental* liquid cooled 550 in C-210's, model's "K"
through "N".

That might explain the "runs very cool" part.