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08-08-2012, 11:19 AM
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Join Date: Feb 2011
Location: USA
Posts: 3,179
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Now that Paul Dye has found a source for undersized hings wires, I'd probably go with the original hinge design and use one of the undersized wires. As Paul suggested, get the range so you start with one of the smaller sizes, adn once it get too easy, move up a size. etc.
As for my airplane, I have fasteners (across the back of the top cowl) ... which look surprisingly like the ones on a Corsair II 
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08-08-2012, 11:23 AM
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Join Date: Mar 2011
Location: Cape Town , South Africa
Posts: 35
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Hi all
I am at the same point i.e. skybolts or the horizontal long hinge pins thingys. Does anyone have a picture of any of the examples - Looks like I may settle on skybolts but not 100% sure. Lot of the local guys moaning about the long hing pins thouogh. Any help on this would be greatly appreciated
__________________
Paul
RV7 kit ordered and delivered - should be ready April 2013   :
Cape Town, South Africa
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08-08-2012, 01:33 PM
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Join Date: Jan 2006
Location: New Smyrna Beach, FL
Posts: 1,339
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Quote:
Originally Posted by rwhittier
Can't comment on Mil Spec other than I think the fasteners themselves are equal. Check what other parts of the system are available though. With SB's they have the interlocking tabs and an alignment jig (guide) to drill the holes that are extremely useful (even very small hole errors can cause the heads to do weird things). Both add up to make the job much easier. I don't know if MS has those. If they do I guess you can use price to guide you. Good luck.
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Milspec also have the alignment jig. I don't know what the interlocking tabs are, so can't say if Milspec has them or not.
__________________
David Maib
RV-10 N380DM
New Smyrna Beach, FL
VAF Paid 1/21/2020
"In '69 I was 21, and I called the road my own"
Jackson Browne
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08-08-2012, 01:35 PM
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Join Date: Jan 2010
Location: Tyler, Texas
Posts: 350
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can someone provide a link for the Milspec's
__________________
RV 7
391RK Reserved
IO360 9:5:1 AFP
Slow Build
Last 90%
Tyler, Texas
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08-08-2012, 01:51 PM
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Join Date: Jul 2010
Location: Sunriver, Oregon/Surprise, Arizona
Posts: 128
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Hate the Hinge
I currently have a RV-9A with only 1/4 turn fasteners for both the top and bottom cowl. Love it and to me it looks good. both cowls on or off in less than three minutes.
My previous plane was a GlaStar and it had 1/4 turns across the back of the top cowl but also had two hinges on the side of the cowl. I absolutely hated trying to get the hinge pins in. It was tough no matter how you did it. Yep, tried graphite, tried tapering the pins and nothing I did worked. It sucked. In fact it was a significant reason not to pull the top or bottom cowl.
It is obvious some people have no problems with hinges and some are more caring about the visual impact of the 1/4 turns but give me 1/4 turns any day.
__________________
Fly safe,
Ken Day
Independence, OR
RV-9A O-360/CS - SOLD
RV-12 SOLD
AA1C 150HP - FLYING
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08-08-2012, 02:35 PM
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Join Date: Oct 2006
Location: Garden City, Tx
Posts: 5,145
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Quote:
Originally Posted by Sunriver Ken
I currently have a RV-9A with only 1/4 turn fasteners for both the top and bottom cowl. Love it and to me it looks good. both cowls on or off in less than three minutes.
My previous plane was a GlaStar and it had 1/4 turns across the back of the top cowl but also had two hinges on the side of the cowl. I absolutely hated trying to get the hinge pins in. It was tough no matter how you did it. Yep, tried graphite, tried tapering the pins and nothing I did worked. It sucked. In fact it was a significant reason not to pull the top or bottom cowl.
It is obvious some people have no problems with hinges and some are more caring about the visual impact of the 1/4 turns but give me 1/4 turns any day.
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Agreed. I've got Milspec 1/4-turn fasteners on my 172 cowl and love it, they will be on my 9A.
__________________
Greg Niehues - SEL, IFR, Repairman Cert.
Garden City, TX VAF 2020 dues paid 
N16GN flying 700 hrs and counting; IO360, SDS, WWRV200, Dynon HDX, 430W
Built an off-plan RV9A with too much fuel and too much HP. Should drop dead any minute now.
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08-08-2012, 06:13 PM
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Join Date: Jan 2006
Location: New Smyrna Beach, FL
Posts: 1,339
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Quote:
Originally Posted by randyintejas
can someone provide a link for the Milspec's
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http://www.milspecproducts.com/
__________________
David Maib
RV-10 N380DM
New Smyrna Beach, FL
VAF Paid 1/21/2020
"In '69 I was 21, and I called the road my own"
Jackson Browne
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08-08-2012, 06:33 PM
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Join Date: Oct 2009
Location: lena, il.
Posts: 305
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skybolts
I only have 5 hrs. of flying but have removed cowl for inspection several times and several times before flight. I really like my skybolts. We built a 3 piece cowl so cooling and intake boots, and close fit behind spinner do not need to be messed with when removing top half. Spacing was kept at about 3 inches for good fit. It is a very task removing cowl. Ron
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08-09-2012, 08:43 AM
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Join Date: Oct 2006
Location: SC
Posts: 156
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Thanks for the replies. I guess the two fasteners look very similar on the airplane, both are adjustable, etc. So with the Skybolts including the tabs premade, it looks like they have the advantage right now...
Any more thoughts and/or comments?
__________________
Melinda Harrill
Flying my RV-7!
Barrett Precision Engine - Superior IO-360 with AFP FI
Garmin Panel - All touchscreens
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08-09-2012, 09:18 AM
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Join Date: Oct 2008
Location: Hales Corners, WI
Posts: 981
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Milspec for sale?
Don't mean to hijack the thread, but Jim Wright, if you're not using the ones you have, I'd be interested in 17 of them. 
__________________
Jesse Bentley
N229Z - RV-8 - Flying - Livin' the dream!
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