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  #1  
Old 08-13-2020, 10:54 AM
Ramjet's Avatar
Ramjet Ramjet is offline
 
Join Date: Aug 2016
Location: Freeland Wa
Posts: 9
Default RV-6A to RV-6 Conversion

Does Vans offer a service bulletin describing how to convert a tri-gear to a tailwheel? I am less interested in directions as I am in a list of the needed parts. For instance, I found the tailwheel spring and tailwheel kit in the catalog, along with the 6" wheel and tire. But I could not find any line items for landing gear legs or engine mounts in the catalog. I wanted to calculate the parts cost.

How much value would the tri-gear gear engine mount and gear legs have on the used market?

Have any of you readers accomplished this conversion?

Thanks,
Rick
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  #2  
Old 08-13-2020, 11:11 AM
Ralph Inkster Ralph Inkster is offline
 
Join Date: Feb 2008
Location: Calgary, Alberta
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Do you have a copy of plans for your plane? You can build a parts list from there and the process would be described in the builders manual. If you don't have the plans/manual, are available from Vans for $10 on a USB stick.
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  #3  
Old 08-13-2020, 11:36 AM
fixnflyguy fixnflyguy is offline
 
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Location: Winston-Salem, N.C.
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Default VANS did it a while back with pictures.

Not that this answers your question, but I recall following an article long ago where VAN's took one of their -6A demonstrators and converted it to TW. Had pictures of it with 4 mains where they had installed the TW engine mount/gear and still had the 6A mains in place, which was likely handy for holding the fuselage..didn't seem that it took all that much to do it.
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  #4  
Old 08-13-2020, 11:44 AM
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Ramjet Ramjet is offline
 
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Location: Freeland Wa
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Quote:
Originally Posted by Ralph Inkster View Post
Do you have a copy of plans for your plane? You can build a parts list from there and the process would be described in the builders manual. If you don't have the plans/manual, are available from Vans for $10 on a USB stick.
I don't have a plane yet, am considering several -6A projects. I am curious, once I have a list of part numbers, how do I get prices? How do I order? Call Van's? It seems that Van's must not list all of their available parts in the catalog, Is that correct?

Thanks again,
Rick
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  #5  
Old 08-13-2020, 02:02 PM
Ralph Inkster Ralph Inkster is offline
 
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Correct, most things are priced on their web store by part#, items not listed might be offered as part groupings like the mount & gear legs as a package, which you can price by phoning Vans.
On a couple repair projects, I emailed them a list of #s I could find and a note explaining what I was doing, & they came back with itemized quotes.
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  #6  
Old 08-13-2020, 02:13 PM
mattsrv7 mattsrv7 is offline
 
Join Date: Jul 2008
Location: Seattle, WA
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Getting the WD-409 tailwheel spring weldment attached will be most of the work. I think you'll have to pull the aft bulkhead to get it in, assuming it isn't already there.

The main gear should be pretty easy if you leave the A main mounts in place.
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  #7  
Old 08-13-2020, 03:11 PM
Coaltowngarage Coaltowngarage is offline
 
Join Date: Aug 2019
Location: Altoona,AL
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Engine mount and gear leg kit is $1750 as of June this year, wd-409 $50. Bulkhead 611 and 612 are $52 and $19 respectively, the 611 and 12 bulkheads are doubled for the tailwheel and also the aluminum stock that the horizontal stab bolts to are done a little different. You might could get away without removing the empennage to get in there but I doubt it, its already a pain to get in there for riveting with it off.
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  #8  
Old 08-13-2020, 04:21 PM
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Ramjet Ramjet is offline
 
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Quote:
Originally Posted by Coaltowngarage View Post
Engine mount and gear leg kit is $1750 as of June this year, wd-409 $50. Bulkhead 611 and 612 are $52 and $19 respectively, the 611 and 12 bulkheads are doubled for the tailwheel and also the aluminum stock that the horizontal stab bolts to are done a little different. You might could get away without removing the empennage to get in there but I doubt it, its already a pain to get in there for riveting with it off.
The airplane project that I am most interested in has not assembled the tail yet. Access to the aft bulkhead has been described as good right now, I understand that I install a second aft bulkhead to double it. It sounds like you are describing a second bulkhead, in addition to the Aft also gets doubled?

Do both the RV-6 and the RV-6A get detailed on the same drawings? Or will I need to order a set specific tot he RV-6?
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  #9  
Old 08-13-2020, 05:11 PM
Coaltowngarage Coaltowngarage is offline
 
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The full plans will show both configurations. Technically the bulkhead is doubled in both models. They are just configured differently. Here is the drawing for the assembly of the 611 bulkhead.
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  #10  
Old 08-14-2020, 05:46 AM
Skysailor Skysailor is offline
 
Join Date: May 2011
Location: Atlanta, GA
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Default Tires are fine

You do not need to change the wheels/brakes unless you just want larger wheels. The 6and 6A share the same 500x5 wheels. A friend of mine did this very conversion and kept the same wheels/brakes. Saves a good bit of cash and lighter to boot.
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