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-   -   Which ¼ turn fasteners to use on the cowl? (https://vansairforce.net/community/showthread.php?t=89521)

humptybump 08-08-2012 11:19 AM

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 :cool:

paulincapetown 08-08-2012 11:23 AM

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

dmaib 08-08-2012 01:33 PM

Quote:

Originally Posted by rwhittier (Post 687384)
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.

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.

randyintejas 08-08-2012 01:35 PM

can someone provide a link for the Milspec's

Sunriver Ken 08-08-2012 01:51 PM

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.

airguy 08-08-2012 02:35 PM

Quote:

Originally Posted by Sunriver Ken (Post 687459)
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.

Agreed. I've got Milspec 1/4-turn fasteners on my 172 cowl and love it, they will be on my 9A.

dmaib 08-08-2012 06:13 PM

Quote:

Originally Posted by randyintejas (Post 687453)
can someone provide a link for the Milspec's

http://www.milspecproducts.com/

868RM 08-08-2012 06:33 PM

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

airmel 08-09-2012 08:43 AM

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?

Veetail88 08-09-2012 09:18 AM

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.:D


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