I am dreaming of putting a turbo 20B on a Barracuda for high altitude
cross-country trips.  What options are available for an in-flight
adjustable pitch prop that will attach to the PSRU of a 20B that will
reliably handle 300 -350 HP?

Bst rgds,
   Scott Carroll

Hoffman and MT electrical props are about the only options until somebody
builds a PSRU that will handle the hydraulic constant speed props.

I have a design for such an animal and I might build one as soon
as I get my NC Mill working. My project for this spring.
It will use Ford A4OD planet gear parts. The last picture is
the Lycoming version it was patterned on.

BTW does anybody have a junk (cracked or broken) Lycoming O-540 crank
lying around they can ship to me? I'll pay shipping.

Paul Lamar

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