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Cwehner
Joined: 15 Jan 2009
Posts: 17
Location: Tulsa, OK
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 Posted: Mon May 31, 2010 9:05 pm Post subject: prop hub questoin |
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We're about ready to install the GSC 3-bladed prop on our 912 on a KFIV. Is the aluminum backing plate (in the center of the attached photo) used in this installation?
thanks
CHris
KF-IV
Oklahoma
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Chris Wehner
Tulsa, Oklahoma
Kitfox IV, 912, Final push for completion! |
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Dick Maddux
Joined: 24 Jun 2008
Posts: 516
Location: Milton, Fl
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| Posted: Tue Jun 01, 2010 4:53 am Post subject: prop hub questoin |
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Chris,
I have a Warp Drive propeller with the same plate you have pictured. I attached the plate over the fiberglass "back plate" of my fiberglass spinner. As you look at the propeller standing in front of the plane, the prop goes on the engine propeller flange, the spinner back plate goes on the prop, then the aluminum plate goes on. Bolts are then slid in place torqued then saftied at the head (if yours is set up that way). Even with the aluminum spinner I used to have, it was done that way.
This is the way my setup is done. Yours might be different (i.e.: spinner backplate behind the prop hub)
I called Warp and they told me to definitely used that thick 3/8 inch (?) plate.
Dick Maddux
Fox 4
Milton,Fl
[quote][b]
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dwight purdy
Joined: 10 Feb 2006
Posts: 85
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| Posted: Wed Jun 02, 2010 12:48 pm Post subject: prop hub questoin |
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Dick
I am a little confused. I thought that is a crush plate, only for the front of all wood props. Never seen it used as a back plate.
Dwight Purdy
Model ll 503
[quote] ---
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dwight
model II |
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Dick Maddux
Joined: 24 Jun 2008
Posts: 516
Location: Milton, Fl
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| Posted: Thu Jun 03, 2010 5:10 am Post subject: prop hub questoin |
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Dick
I am a little confused. I thought that is a crush plate, only for the
front of all wood props. Never seen it used as a back plate.
Dwight Purdy
Model ll 503
Dwight,
I too was a little confused about this when I bought a larger spinner to replace my small 7inch aluminum spinner. I called Warp and they told me that yes indeed that plate needs to be on top of the spinner backplate. My new spinner was fiberglass so I can understand why the aluminum plate needs to be on there (the spinner instructions also said to use it) I guess it acts like a giant "fender washer' holding everything in place. Warp did say to use it on an aluminum one also (as mine had when I bought the aircraft)
Dick
[quote][b]
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Dick Maddux
Joined: 24 Jun 2008
Posts: 516
Location: Milton, Fl
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| Posted: Fri Jun 04, 2010 4:57 am Post subject: prop hub questoin |
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Dick
I am a little confused. I thought that is a crush plate, only for the
front of all wood props. Never seen it used as a back plate.
Dwight Purdy
Model ll 503
Dwight,
I too was a little confused about this when I bought a larger spinner to
replace my small 7inch aluminum spinner. I called Warp and they told me that
yes indeed that plate needs to be on top of the spinner backplate. My new
spinner was fiberglass so I can understand why the aluminum plate needs to be
on there (the spinner instructions also said to use it) I guess it acts like
a giant "fender washer' holding everything in place. Warp did say to use it
on an aluminum one also (as mine had when I bought the aircraft)
Dick
Dewight ,
Let me clarify this a bit. The back plate of my spinner goes on the front of the prop after the prop is mounted to the engine prop flange,then the flat crush plate,then the bolts are slid in place,saftied,spinner then attached. Some spinner back plates go behind the prop.
Dick Maddux
Milton,Fl
Do not archive
[quote][b]
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