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Streamlined Gear Legs

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Dennis.Kirby(at)kirtland.
Guest

Posted: Mon May 05, 2008 7:27 am Post subject: Streamlined Gear Legs

Larry -



Congrats on getting your bird back together and flying so quickly!



The streamlining on your gear legs appears to be the same plastic

slip-on streamlining used for our Kolb wing struts.  How did you secure

it to you gear legs?  (Is it even secured at all?)



I ask, because I have some extra streamlining that I want to install on

my OWN gear legs.  Hopin' to pick up a knot or two in cruise if I do

this.



Dennis Kirby

Mark-3, 912ul, in

Cedar Crest, NM

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lcottrell

Joined: 29 May 2006
Posts: 1494
Location: Jordan Valley, Or

Posted: Mon May 05, 2008 8:06 am Post subject: Streamlined Gear Legs

---

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airspeedx3(at)yahoo.com
Guest

Posted: Mon May 05, 2008 8:29 am Post subject: Streamlined Gear Legs

Dennis,

   

    How's the airplane repairs coming along?  I understand you're going to MV, but I thought I read somewqhere Dave is picking you up in his C-175.

   

    Regarding the attachment of the steamline shaped fairing, if I were to attach mine, I would most likely use that insulation foam called "Great Stuff".  $5 at Home Depot.  Just a little shot at each end of the opening, around the gear leg, and after a few hours it is STUCK!!

   

    If you aren't very familiar with the product, I'd recommend a couple of practice projects, to find out how much is expands. (which is quite a bit)  You would only want a shot of it in front and behind the gear leg.  Not too much, tho!  (You would want to duct tape the fairing in position, so that the foam doesn't alter the fairing, during the expanding stage).  Once it is firm, carve and shape the  excess that bulged out the fairing.  You could even fill, sand and paint the ends.

   

    One thing to note is that once you spray the stuff, LEAVE IT ALONE!  If you screw with it, it sort of collapses, and doesn't "re-expand."

   

    It weighs virtually nothing, is easy to shape if excess bulges out, and is cheap.  And holds on better than King Kong's grip!

   

    BTW, if you are really serious about streamlining your MkIII, the best place to start is where the windscreen intersects below the leading edge of the wing.  That is where Barnaby 

  Wainfan began his design changes, and came up with the "Xtra".  Consider making your own fiberglass fairing to smooth the airflow over the wing gap.  

   

    Just my thoughts.......

   

  Mike Welch



[b][i]"Kirby, Dennis CTR        Be a better friend, newshound, and   [quote][b]

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Dennis.Kirby(at)kirtland.
Guest

Posted: Tue May 06, 2008 8:43 am Post subject: Streamlined Gear Legs

Mike Welch wrote:  

<< Dennis, How's the airplane repairs coming along?  I understand you're

going to MV, but I thought I read somewhere Dave is picking you up in

his C-175. >>

   

Hi, Mike - 



My Mark-3 is back together (with upgrades) and I'm finally doing engine

test runs.  But I still need to do a pneumatic synch of the carbs before

it flies.  Probably won't happen before next week, which is why I begged

a ride to MV from Dave Rains.  Dave's "Cessna Air Taxi Service to

Monument Valley" is great!  Dave graciously flew me up to MV in his 175

four years ago.  When Dave and Will pick me up in Cedar Crest, they'll

probably have a sandwich and a cold soda waiting for me, for the flight

up.  Those guys will do all the complicated and important stuff up

front, while I just sit in the back seat and enjoy the scenery!  (and my

sandwich)



<<  Regarding the attachment of the steamline shaped fairing, if I were

to attach

mine, I would most likely use that insulation foam called "Great Stuff".

$5

at Home Depot.  Just a little shot at each end of the opening, around

the gear

leg, and after a few hours it is STUCK!! >>



Thanks for the tip - I've never used the expanding foam goop before.

Might just give it a try.  Looking forward to meeting you at Monument

Valley ...



Dennis Kirby

Cedar Crest, NM

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