Le Roux,
                  The pins that hold the prop flange on, are they a press fit?  What holds them in?
Next I cannot see what takes the negative thrust?  The prop pull is taken by the bearings at the base od the shaft, but then there should be also a thrust "taker"  when you cut engine power and shaft  takes negative forces??  Any needle thrust bearings at prop end?
Then how do you take movement out of prop shaft?  
Is the 6 pin planetry the same dimensions?  Same size sun gear?
All interesting.  I wish you the best.
Neil.
  

-----Original Message-----
From: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Thursday, March 18, 2021 9:23 PM
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: [FlyRotary] Ross Redrive Dimensions

Neil: I got it wrong the propellor flange and ringgear flange is not the same.
Can’t figure it out ? how the ringgear side flange is stuck to the hollow shaft.Seems to me it has thread that screw in. Somehow it must be locked. I did not removed the pilot bearing as there is no need to do so as it is still brandnew never been used.
The propellor flange has 3 pins that holds it in place after the pressfit.
The hollow shafts needle bearings ,run over the oil holes in the shaft, and there is some holes between them too.


This psru is counter rotating and a 2,17 : 1 ratio.Therefor needs an anti - clockwise prop pilotside view. I am planning to put in just a 6 pinion planet steel casing planetary No other modifications to be done.There is a  6 pin planetary with 12 lug available to drop into the housing.
I believe with the 2  - 44 mm p ports @ 6500 rpm will have sufficient Hp for take off and climb turning the prop at 2900 rpm.
The at “top of climb “ level out and cruise at 2300 prop rpm.