> If you want a super light PSRU you will have scrap Tracy's housings
> and to do something like this with a Ross style tubing prop shaft.
>
> --
> Paul Lamar ...No rotor no motor.

Would this arrangement of a redrive support a constant speed hydraulic
actuated prop?

Doc Custer
Retired software engineer and sometime Audiologist
Building RV9-A. Fuselage

No you would need something like this.

-
Paul Lamar ...No rotor no motor.

Paul,
 How would you build the pink shaft? Start with a tube, weld on
flanges, anneal, machine the flanges/bearing surfaces, heat treat and
polish the bearing surfaces?
 Do we use a two piece seal on the front?
 Shaft and flanges are 4330, 4130, ...?
What kind of casting would be affordable but strong enough for the case?
I would like to work on the tooling of this product. An old crank and a
case would be nice to have. This is a 360? Should we use the 540 to
handle 300 hp motors?

Blake

Contact a Lycoming overhaul shop and ask to buy a crank
that is not cracked in the area you need. Machine off most of
the counter weight by grinding or perhaps with a carbide
cutting tool.

Yes you could also do the same thing with the case. They have
plenty of cracked cases unless they are welding them up
and reselling them :)

From the looks of it this git sew could be using the Ford
C6 auto tranny planet set :)

Paul Lamar ...No rotor no motor.

Paul,
Where do they adjust for end play and thrust in this set up. If you end up
cutting/grinding that part off you might end up with problems ?

John

Not completely. I should have said grind down as the
thrust bearing is in there someplace. I don't think You
adjust for end play in a Lycoming engine. It is what it
is I think. I overhauled an O-540 in A&P school and I don't
recall it had any adjustment for end play. I am not an A&P. I
just took some classes for the heck of it. I was curious
about this class as we were to disassembled and reassembled
an O-540 and then ran it on a test stand.