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  #11  
Old 03-11-2012, 05:19 PM
g zero g zero is offline
 
Join Date: Jun 2007
Location: palm coast fl.
Posts: 997
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You would be amazed at what you can form over wood blocks and other objects in the shop or the wife's kitchen. I have a small lathe and machined some plastic tips that I use with a rivet gun. Shirnkers and Strechers are great if you have them . We have and English wheel at work , I don't use it much as most projects are too small to work.
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  #12  
Old 03-11-2012, 06:08 PM
paul mosher
 
Posts: n/a
Default Pattern

What are you using for a pattern or did you make your own?
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  #13  
Old 03-11-2012, 06:15 PM
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hydroguy2 hydroguy2 is offline
 
Join Date: Sep 2006
Location: Townsend, Montana
Posts: 3,179
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Good job, Dan. Glad someone was able to get to the shop this weekend. I just got home from crappy day at work, so don't think I should taking out frustration on Aurora.
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  #14  
Old 03-11-2012, 06:23 PM
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frazitl frazitl is offline
 
Join Date: Jan 2005
Location: Las Vegas, NV
Posts: 488
Default welding

in case you end up wanting to weld to help create compound curves I suggest staying away from 2024. 6061, 5052, and 3000 series weld easily with the right equipment and skill (which I've observed, but have not yet developed BTW).

Still on my list.
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RV 7A N457RV
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  #15  
Old 03-11-2012, 08:38 PM
gereed75 gereed75 is offline
 
Join Date: Sep 2007
Location: pittsburgh pa
Posts: 554
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Dan Brian and Bob, Glad you guys are interested. I think that you will be pleased with the results.

I made my prototype set out of aluminum - I think 5052 1/4 hard (not sure what heat treat it was). It was soft enough to be hand formed. I made it in three sections - a left curved piece, a right curved piece and a center section. That way you could fit the two curved sides and make the center section as long as necessary to get the sides expanded and alined into a snug fit inside the stock cowl.

That looks like a pretty good effort Dan, and will certainly serve to check it out.

Sent my prototype out to Bob Mills. I guess he didn't know what a valuable piece he now owns!!

Good luck with it men and I'll help out if I can.
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RV-6 IO-360
WW 200 RV now an Al Hartzell for improved CG

Last edited by gereed75 : 03-11-2012 at 08:44 PM.
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  #16  
Old 03-11-2012, 09:06 PM
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hydroguy2 hydroguy2 is offline
 
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Location: Townsend, Montana
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I managed to get to the hangar after all and started roughing out the AL prototype. Should have a flyable version on Tuesday. I have a 4 pipe exhaust so will be different than others. Also looking up the lower cowl, I have a very restricted and cluttered outlet. 4 pipes, engine breather tube, exhaust hangars and heat muff in a opening smaller than factory cowl....I've got work to do.

Sorry about the lousy cell pic.
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  #17  
Old 03-11-2012, 09:36 PM
gereed75 gereed75 is offline
 
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Location: pittsburgh pa
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Brian, also a good looking start. My first one fit inside the cowl, but for a prototype, you could use duct tape to seal the bottom and hold it in place for a try.

The only other drawback to an aluminum one is that, in my case, my transponder antenna is near the fairing. I flew with the aluminum fairing for about two months and did have one instance of "not receiving your transponder". I was at low altitude when it happened and suspect my antenna was blanked by the aluminum fairing.
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  #18  
Old 03-11-2012, 10:46 PM
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Omega232Devils Omega232Devils is offline
 
Join Date: Jun 2011
Location: Catawba, NC
Posts: 319
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Thanks guys. Can't wait to test the fairing. I have a lot of CHT data as I have been working on my baffling to lower my CHTs. I think this fairing was originally a 'speed' mod, but I am doing it to lower CHTs by smoothing exit air. Any speed increase is BONUS!

Hopefully get some test data next week!

Dan
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  #19  
Old 03-12-2012, 07:18 AM
6 Gun 6 Gun is offline
 
Join Date: Jun 2005
Posts: 846
Default metal tools

Lots of cheap metal working tools at Harbour Freight english wheel and air hammer banshing tool and shrinkers and strechers.
Bob
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  #20  
Old 03-12-2012, 11:12 PM
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rvmills rvmills is offline
 
Join Date: Nov 2007
Location: Georgetown, TX
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Quote:
Originally Posted by gereed75 View Post
<snip> Sent my prototype out to Bob Mills. I guess he didn't know what a valuable piece he now owns!!

Good luck with it men and I'll help out if I can.
Been focused FWF (a bit further fwd anyway) so far this winter, but will take some pics of Gary's proto-parts and post them when I get home from this trip.

Happy to share them as well!

Cheers,
Bob
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RV-S6 "Rocket Six" N49VM
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