KR> Prop Spinner attaching screws ?

2009-06-09 Thread Jeff Scott 
I see how the forward bulkhead is screwed to the prop hub
but not to the Spinner.
So the forward bulkhead exists only for internal support
of the spinner but is not attached to the spinner directly?

I thought perhaps there would be screws through the spinner
into the forward bulkhead much like the rear one.
Scott


Take a look at the top two pictures at 
,  You'll see the screws 
through my spinner into the front bulkhead.  I used to use the same model 
spinner with it only screwed to the rear bulkhead and a tight friction fit over 
the front bulkhead, but after roughly 300 hours, the spinner started developing 
cracks due to the spinner and the front bulkhead wearing on each other.

-Jeff Scott
Los Alamos, NM 



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KR> Prop Spinner attaching screws ?

2009-06-09 Thread Scott Perkins 
My favorite spinner was a 14 inch fiberglass unit sold by 
Loehle Aviation for use on his P-40 and P-51 replicas.
I wonder if they still have them for sale?

A prominent aerodynamicist told me that a spinner up
to one third of prop diameter was the last way to
squeeze a few more percentage points of efficiency
out of a perfect prop.
Scott


Dana Overall wrote:
> 
> > From: 2sc...@bellsouth.net
> 
> > I see how the forward bulkhead is screwed to the prop hub
> > but not to the Spinner.
> 
> >
> > I thought perhaps there would be screws through the spinner
> > into the forward bulkhead much like the rear one.
> > Scott
> 
> Scott, look at the third picture up from the bottom, it says:  "OH, I am 
> finished.  I still have to put the screws in the front bulkhead, but I ran 
> out of anchor  nuts."
> 
> Dana Overall
> 
> 1999 & 2000 National KR Gathering host
> Richmond, KY i39
> 
> RV-7 slider "Black Magic"
> Flying..well sorta, useta, kinda
> Barrett Precision O 360 A1A
> Hartzell C2YR-1BFP/F7497-2
> http://rvflying.tripod.com/blackmagic.jpg
> http://www.youtube.com/watch?v=MMi05-WU2D0#GU5U2spHI_4
> http://rvflying.tripod.com
> 
> do not archive
> 
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KR> Prop Spinner attaching screws ?

2009-06-09 Thread Dana Overall 

> From: 2sc...@bellsouth.net

> I see how the forward bulkhead is screwed to the prop hub
> but not to the Spinner.

> 
> I thought perhaps there would be screws through the spinner
> into the forward bulkhead much like the rear one.
> Scott


Scott, look at the third picture up from the bottom, it says:  "OH, I am 
finished.  I still have to put the screws in the front bulkhead, but I ran out 
of anchor  nuts."

Dana Overall 

1999 & 2000 National KR Gathering host
Richmond, KY i39

RV-7 slider "Black Magic" 
Flying..well sorta, useta, kinda
Barrett Precision O 360 A1A
Hartzell C2YR-1BFP/F7497-2 
http://rvflying.tripod.com/blackmagic.jpg
http://www.youtube.com/watch?v=MMi05-WU2D0#GU5U2spHI_4
http://rvflying.tripod.com

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KR> Prop Spinner attaching screws ?

2009-06-09 Thread Scott Perkins 
I see how the forward bulkhead is screwed to the prop hub
but not to the Spinner.
So the forward bulkhead exists only for internal support
of the spinner but is not attached to the spinner directly?

I thought perhaps there would be screws through the spinner
into the forward bulkhead much like the rear one.
Scott


Dan Heath wrote:
> 
> Sure, if you look at the 6th pic down the thumbnails, you will see the back
> plate, the front bulkhead plate, and the crush plate with bolts in them.
> Look at the prop in the pic below that.  The large back plate goes behind
> the prop, the bulkhead plate goes on top of the prop, and the crush plate on
> top of that and it all gets bolted to the prop hub with those bolts, except
> the one in then center.
> 
> Then the spinner goes on over all that and gets screwed to the plates.
> 
> See N64KR at http://KRBuilder.org - Then click on the pics
> See you at the 2009 - KR Gathering in Mt. Vernon, Ill
> There is a time for building and a time for FLYING and the time for Flying
> has begun.
> Daniel R. Heath - Lexington, SC
> 
> -Original Message-
> From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf
> Of Scott Perkins
> Sent: Tuesday, June 09, 2009 4:02 AM
> To: KRnet
> Subject: Re: KR> Prop Spinners
> 
> That is some nice spinner work but even in the finished
> and mounted spinner photo I do not see bolts through the
> spinner into the Front bulkhead.  Were they ever placed ?
> Scott
> 
> Dan Heath wrote:
> >
> > This might answer your questions about the spinner and the front bulkhead.
> >
> > http://krbuilder.org/Spinner/index.html
> >
> > See N64KR at http://KRBuilder.org - Then click on the pics
> > See you at the 2009 - KR Gathering in Mt. Vernon, Ill
> > There is a time for building and a time for FLYING and the time for Flying
> > has begun.
> > Daniel R. Heath - Lexington, SC
> >
> > -Original Message-
> >
> > There was earlier mention of needing to put or
> > use a front bulkhead on a spinner.  What is that ?
> >
> > ___
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> >
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> > Version: 7.5.516 / Virus Database: 269.19.18/1254 - Release Date: 1/31/08
> 8:30 PM
> 
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> 
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> 8:30 PM