Paul or anyone,
Does anyone know about a PSRU provided by John Vlake - Mission B.C.
42 lbs, back to back shaft thrust bearings, planetary, 18" long.
I would like to understand the internals - supposedly good for 600hp

I noticed a couple of planetaries have double leading shaft bearings

and

it's been suggested

that I do the same. Apparently this is the new standard in the

application of independent

suspension in automobiles.
I don't quite understand the benefits (if any) and I am concerned

about

the extra weight if it's

unnecessary.
Any suggestions - most welcome.

BTW has anyone looked at (considered) the Allison gears over there ?
That's about the only light weight planetary I know that can provide

600hp.

George (down under)

What is a "double leading shaft bearing"?

Paul Lamar

Paul,
Double roller shaft bearing, which I've seen or double taper roller

bearing

at the prop end of the PSRU shaft.
The same as you put in your design of the PSRU, except you put it on the

Sun

gear shaft (forward of the sun gear). These designs put a double bearing

on

the prop shaft (front end). I'm not sure whey!
George

Looks kind of scary to me. Perhaps they are unaware of the high prop shaft
bending loads due to gyroscopic forces. What OD and ID are they using?

Paul Lamar

Paul,
I've asked - and am awaiting further info. I will pass on any further info.
George (down under)

 
The AirCraft Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2002 All world wide rights reserved.