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BPA pattern hinges?

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Old 01-22-2008 | 12:37 PM
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Default BPA pattern hinges?

What hinges are people using mostly? CA? Robart, or the old fashioned pin hinges? I think Goldberg still makes the pins, but I have not used them in a while. Wings are foam core, and do not want to risk CA-ing the foam away.
I also want minimal gap to seal.

I was toying with making the leading edge of say the rudder round, and making a concave post. Keeping turbulence out of the hinge joint. Thoughts? or just go with the 45 Bevel?

Thanks!
Old 01-22-2008 | 05:47 PM
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Default RE: BPA pattern hinges?

Full size DuBro pin hinges and hinges countersunk for zero gap fit.
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Old 01-23-2008 | 12:43 PM
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Default RE: BPA pattern hinges?


ORIGINAL: 8178

Full size DuBro pin hinges and hinges countersunk for zero gap fit.
Sounds like a winner to me, Thanks!
Old 01-23-2008 | 02:03 PM
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Default RE: BPA pattern hinges?

I used to be a fan of Kraft nylon hinges (no pins). I still would be, if someone made them available. I haven't checked lately.

I have nothing against CA hingest for .60 sized models of the SPA type that we are flying. Yes, you have to keep a careful eye on them, but I haven't had one fail as yet. Were this question directed at BPA type models, which it turns out to have been , I would probably not recommend CA hinges. Just me, I suppose.


Ed Cregger
Old 01-23-2008 | 03:48 PM
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Default RE: BPA pattern hinges?

I like pinned hinges, recessed for zero gap.
Old 01-23-2008 | 04:04 PM
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Default RE: BPA pattern hinges?

I would too if I could build a straight wing that never warps, but all of my wings eventually warp, making a bind when pinned hinges are used.


Ed Cregger

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