Hi Brian,
 Something didn't sound right about sandwiching ANYTHING between the
 prop flange and the drive flange, so I went out to my workshop and
 looked at my Hartzel props. Sure enough the spinner bulkhead is
attached
 to the OD (outside diameter) of the prop flange. Its an elaborate setup
 but, the bottom line is there is DIRECT CONTACT of the prop flange and
 the drive flange, no bulkhead, no RTV, no aluminum disks, no carbon
 fiber or fiberglass. I have 2 props --a 2 blade & a 3 blade-- both are
 done the same. Hope this helps. Dave M


>Dave,

>Would it be possible to send a photo?


>Thanks,

>Brian Trubee

Hi Brian,
Photo would not show much. Take a look at the attached sketch. It's not
to scale but all the parts are there. If you need sizes or more info
just shout. Dave M


My Spitfire came with the Spinner and a front and rear flange. Showing
the rear flange between the prop and prop hub, the front on front of the
prop. Prop bolts holding all this together. Is this an improper
installation?

Bob Mears

The smaller three rotor torque pulse is a positive while the additional
average torque is a negative. What is the back plate made out of? If aluminum
you will probably be OK.

Paul Lamar ...No rotor no motor.

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