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  #1  
Old 07-17-2007, 04:34 PM
malibuskiboats malibuskiboats is offline
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Location: Jessup, MD
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Default Main gear streamlining

I stumbled on a builder’s page a few weeks back that had info on shaping the main gear on a cozy (mkiv?) as to correct for incidence of the slipstream and thus reduce drag. I wanted to incorporate theses change in our bird, but I can’t find that link. Does anyone out there have an idea of what I’m talking about and where I might be able to find this page again?

Thanks,

-MalibuSkiBoats
aka Richard
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  #2  
Old 07-17-2007, 04:48 PM
Jason Heath Jason Heath is offline
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Default Re: Main gear streamlining

Richard, that was probably Wayne Hicks Site: http://www.maddyhome.com/canardpages...apter_09_6.htm
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  #3  
Old 07-17-2007, 07:51 PM
Ron Springer Ron Springer is offline
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Default Re: Main gear streamlining

I have some photos of how I did it here:

http://new.photos.yahoo.com/crxbird/...60762316826000
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Cozy Mk IV #1334
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  #4  
Old 07-18-2007, 08:07 AM
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neverquit neverquit is offline
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Default Re: Main gear streamlining

Great photos Ron! You're going to make Wayne jealous. I looked for a website but you don't have one yet?

Anyway, I Googled for info and found this: http://ttcse.com/cozylinks/index.jsp?t1=3&t2=0

Nice database by Tom Tugan.
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  #5  
Old 07-18-2007, 12:07 PM
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Default Re: Main gear streamlining

Ron - love what you did, the stock gear breaks the 8 degree rule for air leaving the plane, may do a similar treatment to mine
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Enjoy the build,njut av byggandet, godere il costruire, nyd bygningen, geniesse den Bau, apolafse tin kataskevi, disfrute la construcción, curta a construção, Pidä hauskaa rakentamisen parissa, bouw lekker,uživaj grade?inaslajdaites postroikoi, geniet die bou
dust

maker of wood, fiberglass, foam dust, metal bits and one day a Cozy will pop out and swiftly whisk me from meeting old friends and family to adventures throughout the world
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  #6  
Old 07-18-2007, 01:39 PM
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Default Re: Main gear streamlining

8 degree rule?
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  #7  
Old 07-18-2007, 01:48 PM
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Default Re: Main gear streamlining

Quote:
Originally Posted by neverquit View Post
8 degree rule?
Yeah - i made it up from my research on drag reduction, if the air leaving a surface is asked to make more than about an 8 degree change in course to follow that surface, it will not and it will go turbulent.

Also, two intersecting surfaces seem to have an additive effect, 8 degrees in one direction and 8 degrees in another direction add up to drag, just like we have at the vert stab root.

FOR ME it is like a 3,4,5 triangle and getting a right angle. I see more than 7 -10 degrees, i see drag a happening.
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Enjoy the build,njut av byggandet, godere il costruire, nyd bygningen, geniesse den Bau, apolafse tin kataskevi, disfrute la construcción, curta a construção, Pidä hauskaa rakentamisen parissa, bouw lekker,uživaj grade?inaslajdaites postroikoi, geniet die bou
dust

maker of wood, fiberglass, foam dust, metal bits and one day a Cozy will pop out and swiftly whisk me from meeting old friends and family to adventures throughout the world
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  #8  
Old 07-19-2007, 12:20 AM
Ron Springer Ron Springer is offline
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Default Re: Main gear streamlining

Quote:
Originally Posted by neverquit View Post
Great photos Ron! You're going to make Wayne jealous. I looked for a website but you don't have one yet?

Anyway, I Googled for info and found this: http://ttcse.com/cozylinks/index.jsp?t1=3&t2=0

Nice database by Tom Tugan.
Sorry, no website ... just lots of pictures. I have a hard enough time keeping those up to date. I am a couple months behind in uploading pictures at this very moment.

But, I figure most of the pictures are self-explanatory if you have a set of plans. If not, just ask.
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