In article . com,
says...


There was some press about an outfit that was developing a conversion
to swap the King Air's PT6 turboprop engines for V-8 piston engines. I
think the name of the engine was spelled something similar to "Oreneda"
or something vaguely like that. I have not read anything about it in
the past year or so, never seen a real one, and there is nothing that I
can find on the net about it ( perhaps someone more proficient with
Google would have success). Given the near bullet-proof reputation of
the PT6, maybe it was just too hard to sell, despite the cost of
dealing with timed-out turbines.

Blue skies . . .




That's it :

http://www.orendarecip.com/index2.htm

I agree they seem to have quieted down a lot over the past couple of years.
Sure doies seem like a hard sell - the principal attractiveness of a KingAir
is the performance and reliability of a pair of PT6A's - then to go and put
recuiprocating engines in it . . .