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  #11  
Old 07-26-2010, 12:54 PM
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Default Backplate from Vans

For future reference... you can buy just the backplate for the spinner assembly from Vans separately, and use it per the above posts and/or Van's suggested directions.

Don't know why I didn't think of that myself...

Dwight
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  #12  
Old 08-05-2010, 01:13 PM
Strasnuts Strasnuts is offline
 
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Default spacer distance

Anyone come up with a definite spacer distance for the simulated spinner plate? I am looking for a 3/16 gap from the spinner to the cowl. I saw on the earlier posts 1.57 and 2.25. I am at this junction and would rather wait to buy the prop.
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  #13  
Old 08-05-2010, 07:18 PM
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Default might have the answer...

Not definitive, but when I spoke to the guy at LessDrag.com who has a good reputation on this forum he said it's 2.25, but there's a lip on the back plate, so if you're using a flat-plate as a simulator the space is actually 1.5"... that's 2.25 - 5/8" lip - 1/8" gap per Vans instruction. I bought the back-plate from Vans and confirmed it is a 5/8" lip. The 1.5" is close to the other posting's measurement too.

Hope that helps.
Dwight
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  #14  
Old 08-06-2010, 09:20 AM
Strasnuts Strasnuts is offline
 
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Default

Thanks Dwight. I was following Van's Construction FAQ's on the prop sim and wanted to make sure after hearing different measurements. It states 2.125 for a constant speed and 2.25 for a fixed with the spinner backlplate. I will verify with my other plate for the 1.5 without the lip.

Sean
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  #15  
Old 08-06-2010, 01:12 PM
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Sean-

Hmm, now I'm wondering again too, and just about to cut my cowl. Think it's still safest to use the larger space (2.25" here), then trim back if it really is supposed to be 2.125.

Dwight
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  #16  
Old 08-06-2010, 04:31 PM
Strasnuts Strasnuts is offline
 
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Default cut mine

Dwight

I called Vans. They told me that 2.125 is the spacer length for the constant speed prop and using the spinner backplate per the construction FAQ's on Van's website. This is where the hub sets the backplate and then you space off of it like it is the actual hub. I put 3/16 spacers and my top cowl is done so I hope it mates up well when I get my prop in.
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  #17  
Old 11-28-2010, 06:20 AM
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Default

Gents,

??? how did your Proppelor backplate Simulator SPACING work out ???

I had the prop on the bench with the backplate attached and tripple measure it. I got a spacing of 2" for a standard hartzel 2 blade [C2YR-1BFP/F8068D. 80” diameter, “blended airfoil “] between the back of the prop backplate and the flywheel.

Maybe the 2.125 spacers is to give you some extra cowl clearance? Maybe 2.125 is the actual thickness of the prop hub, so one have to deduct the thickness of the back plate. Comments and confirmations appreciated.

As you can see I have fitted the actual prop back plate, so remember the flange than turns back


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Last edited by RudiGreyling : 11-28-2010 at 06:23 AM.
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  #18  
Old 11-30-2010, 03:40 AM
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Anyone
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  #19  
Old 11-30-2010, 10:12 AM
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Default Not there yet Rudi

Sorry, haven't got my prop yet Rudi.

Dwight
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  #20  
Old 11-30-2010, 11:10 AM
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Quote:
Originally Posted by Space Cadet View Post
Sorry, haven't got my prop yet Rudi.

Dwight
Thanx I'll send an email to hartsel they should know
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