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prop clearance

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williamtsullivan(at)att.n
Guest

Posted: Mon Mar 31, 2008 3:34 am Post subject: prop clearance

Ellery- I have a 2 blade Warp Drive prop bolted directly to the "B" box shaft. Engine off clearance to the torque tube is about 1 3/4". By pushing hard on the prop, I can get the blade to about 1/4" from the aileron. I will do a full power run-up later today. Remember- my wings are mounted 2 1/2" to the rear of where the original wings were. Where can I get a spacer, if necessary?

    I will check with a local airport to see if their mogas has alcohol. I suspect the former owner just ran pump high test, probably with alcohol. He was very casual about maintenance. He was very specific about using Pennzoil, and an MR funnel. 

                                   

   do not archive

                                                          Bill Sullivan

                                                         FS/KX

                                                          Windsor Locks, Ct.

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ElleryWeld(at)aol.com
Guest

Posted: Mon Mar 31, 2008 4:46 am Post subject: prop clearance

Bill you can probably get a local machine shop to make  you a spacer just give them something  to go by for the bolt  pattern and tell them how thick you need it , I could make you one if  you was a bit closer  a warp is a lot stiffer than an IVO Prop  but I  would move the prop back anyway to help reduce noise 

  

 Ellery in Maine

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  In a message dated 3/31/2008 6:35:17 A.M. Eastern Standard Time,  williamtsullivan(at)att.net writes:

  	  Quote: 	
		     Ellery- I have a 2 blade Warp Drive prop bolted directly to the    "B" box shaft. Engine off clearance to the torque tube is about 1 3/4". By    pushing hard on the prop, I can get the blade to about 1/4" from the aileron.    I will do a full power run-up later today. Remember- my wings are mounted 2    1/2" to the rear of where the original wings were. Where can I get a spacer,    if necessary?

     I will check with a local airport to see if their mogas has    alcohol. I suspect the former owner just ran pump high test, probably with    alcohol. He was very casual about maintenance. He was very specific about    using Pennzoil, and an MR funnel. 

                                       

    do not archive

                                                             Bill Sullivan

                                                             FS/KX

                                                             Windsor Locks, Ct.

 	  Quote: 	
		  



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jlsk1(at)frontiernet.net
Guest

Posted: Mon Mar 31, 2008 5:42 am Post subject: prop clearance

I just Bought a 2 & 1/2 inch prop Extension from Lockwood  for my Warp Drive on a B-box, About $100 bucks, included bolts, & made  things much quieter.

 Jim Kmet, TN, MK-3C

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Dana

Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA

Posted: Mon Mar 31, 2008 8:36 am Post subject: prop clearance

At 07:30 AM 3/31/2008, william sullivan wrote:

 	  Quote: 	
		  Ellery- I have a 2 blade Warp Drive prop bolted directly to the "B" box 

shaft. Engine off clearance to the torque tube is about 1 3/4". By pushing 

hard on the prop, I can get the blade to about 1/4" from the aileron. I 

will do a full power run-up later today.


	


If you can push it to within 1/4", I'd wait on the full power 

runup.  Things can move around an awful lot under dynamic loading, and 1/4" 

is REAL close!



 	  Quote: 	
		      I will check with a local airport to see if their mogas has alcohol. I 

 suspect the former owner just ran pump high test, probably with alcohol. 

 He was very casual about maintenance. He was very specific about using 

 Pennzoil, and an MR funnel.


	


If an airport sells mogas, it's probably alcohol free, since alcohol isn't 

allowed for the aircraft that have an STC for mogas.



-Dana

--

  Hit any key. With what?

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Dennis.Kirby(at)kirtland.
Guest

Posted: Tue Apr 01, 2008 7:39 am Post subject: prop clearance

Bill Sullivan wrote: << ... Remember- my wings are mounted 2 1/2" to the

rear of where the original wings were. >>



Bill -



I saw previously where you mentioned this.



Why do you think your wings mounted in a different-than-stock position?

This could seriously affect your longitudinal stability (pitch).  Seems

like a fairly major structural modification to the cage to have moved

the wings back two-1/2 inches.



Just wondering.  You might want to investigate this further, if only to

satisfy yourself that your center of lift is where it's SUPPOSED to be!



Dennis Kirby

Mark-III, 912ul

Cedar Crest, NM

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