"Darrel Toepfer" wrote in message
...
Mike Rapoport wrote:

They become worthless. The problem isn't just octane it is also vapor
pressure. The octane problem can be solved but there doesn't seem to be
an economical solution to the vapor pressure problem. The pressurized
piston twins are probably toast if TEL becomes unavailible.

There is a guy (in NC I believe) cutting the engines off (3' on each wing)
the Barons and sticking a turboprop on the nose. Working on his second
conversion now...

Higher fuel per hour burn, but flys faster and higher so it actually burns
less...

And the engine is worth more than the airplane. Sure you can do this but
the airframe isn't going to be worth anything before you put the new engine
on (ie pressurized piston twins are toast). They arn't going to be flying
higher than pressurized twins so I doubt that you are going to be able to
save fuel in the real world.

Mike
MU-2