I am looking at using an Aeromatic wood prop. I know a guy that
makes these propellers and he has a lot of the original hubs to build
props from. He tells me that the 8 bolt pattern is not used much (I
think they were used on the Franklin engines) and he will let me come
in and build my own prop with one of these 8-bolt hubs. Will the
Ross copy PSRU's be built so that flange could be drilled to
accommodate the hub?

BTW. this guy has been experimenting with the original Aeromatic
design and he claims to have made some improvements that I think are
fairly significant. He claims that IF, IF the prop is adjusted
correctly and IF the engine is turbo normalized, he can make the
prop work exactly like a CS with the exception of no cockpit
controller. For non turbo normalized engines he has an altitude
compensating adjuster device that will automatically correct the
propeller adjustment to compensate for power loss at altitude. The
altitude compensating device has not yet been flight tested though.
If all this is true it might be worth looking at. No hollow
crankshaft, no prop governor, no electric controlling system. I don't
know the weight but he claims it is about half the weight of a CS. he
sells them installed for $5350. Not sure how this measures up to the
electric composite propellers.

Paul Shamlian


Yes I can do that as in the Ross design the prop flange is a
separate part.

Paul Lamar



Mr. Shamlian,

I would be very interested in contact information for this
individual who is improving the Aeromatic design.   Thanks.

Gene Kahn



His name is Kent Tarver. Click here http://www.aeromatic.com/ for his
web site. Try email, he is a little hard of hearing and has problems
with the phone.

Paul Shamlian



Thanks, Paul.

G Kahn