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4*60 Major Boo Boo

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Old 07-23-2003, 01:04 AM
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*Crash*Johnson*
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Default 4*60 Major Boo Boo

Sure enough, after reading as many posts as I did about the 4* and building tips in general... I did something stupid.

Ya think a 4*60 will fly with 2 right wings?

Anyone out there happen to have templates of the ribs so I can build a new left half? I was thinking about photocopying the ribs before I built it for reasons similar to this but got too Gung-Ho in building.

Any help would be most appreciated!
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Old 07-23-2003, 01:45 AM
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Oregon Craig
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Default 4*60 Major Boo Boo

Can you use the part that you "punched" them out of as a kind of stencil? I did that once to repair a wing.
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Old 07-23-2003, 01:49 AM
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Default 4*60 Major Boo Boo

Originally posted by N7OR
Can you use the part that you "punched" them out of as a kind of stencil? I did that once to repair a wing.
Dude... That was GENIUS!!!!

Why in the world didnt I think of that??????
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Old 07-23-2003, 01:54 AM
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Default 4*60 Major Boo Boo

My 4*40 plans show the rib profiles (though the center one is with aileron cut-out). Are these not on the 60's plans?
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Old 07-23-2003, 01:57 AM
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Default 4*60 Major Boo Boo

Mine does as well, but I assumed they were 5 different sizes. I cannot match em up as they are glued together

Are all the ribs the same size (minus the W5 as they get sheeting over them...)
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Old 07-23-2003, 02:16 AM
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flianbrian
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Default 4*60 Major Boo Boo

4*40 wing half has:
3 center ribs (W1) sheeted
the rest (W2) unsheeted
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Old 07-23-2003, 02:25 AM
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*Crash*Johnson*
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Default 4*60 Major Boo Boo

The 4*60 has W1 - W5. I was wrong before, the W1, W2, and W3 are sheeted.

I did (luckily) save the outside scrap from the ribs, and tomorrow I plan to photocopy the outline for a template.

Thanks to everyone for the help!!!!!
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Old 07-23-2003, 02:28 AM
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Default 4*60 Major Boo Boo

if you used CA then CA debonder, it is not just for separting fingers from each other(I do that a lot), acetone will work also.
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Old 07-23-2003, 02:31 AM
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Default 4*60 Major Boo Boo

Crash: You have the right idea. Good Luck! I've almost been there and will be some day.
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Old 07-23-2003, 02:42 AM
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Default 4*60 Major Boo Boo

Originally posted by Cobra78
if you used CA then CA debonder, it is not just for separting fingers from each other(I do that a lot), acetone will work also.
I asked my older (and way more experienced) brother what to do and he mentioned that. I didnt know how it effects balsa.

I figured I would keep the 2 right ones and build two lefts.

Then....clip a pair and have both clipped and regular...

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Old 07-23-2003, 02:52 AM
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Default 4*60 Major Boo Boo

Hmmmm. I seem to recall someone making a 4* biplane
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Old 07-23-2003, 04:02 AM
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Default 4*60 Major Boo Boo

Just go ahead and buy another kit. You know you want to.
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Old 07-23-2003, 05:32 AM
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Default 4*60 Major Boo Boo

You can build two wings, it's true and maybe from a kit. Perhaps someone needs a fuselage and you can split a kit economically. Come to think of it perhaps someone needs a wing, partly built already.
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Old 07-23-2003, 11:43 AM
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Default 4*60 Major Boo Boo

Another solution: call SIG, have them send you another slab of ribs. Shouldn't cost that much.

Do you have the laser-cut x-braces taht fit between the ribs?

But tracing new ribs from the outside scrap is do-able.

--Bill
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Old 07-23-2003, 11:55 AM
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Default 4*60 Major Boo Boo

Originally posted by BillHarris
Shouldn't cost that much.

--Bill
When I first realized my error, I went to the SIG website, and found out it would be 60 bucks for a wing kit.
Then I realized that Tower sold the whole dam kit for 89. Would be cheaper to buy a whole kit, and build two left wings, giving me two complete airplanes.

I have the outlines of the ribs, and just photocopied them at work. The X braces I have, but the spar (I think thats the name of it) that runs interlocking thru the ribs I dont have, and the wood it comes from I dont know if I can make a new one from. I'm gonna try though. Worst case scenerio, I get some debonder and tear the wing apart to use the pieces as stencils....
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Old 07-23-2003, 03:19 PM
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Default 4*60 Major Boo Boo

For CA debonder I don't know how it effects balsa, maybe more experienced buliders can help us here,

Does CA debonder weaken balsa?

After seperating parts I generally dry them with the heat gun before using CA again.
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Old 07-23-2003, 03:29 PM
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Default 4*60 Major Boo Boo

60 bucks?!!! _Used_ to didn't cost that much....

The spar is spruce or basswood, a decent hobby shop ought to carry it.

CA debonder does "dissolve" CA, but you end up with a less-strong joint re-gluing it. CA does penetrate the wood on the initial application and this adds to the joint strength. I doubt that debonder would remove the penetrated CA.

Better safe than sorry, a folded wing is not a pretty sight...
Don't feel bad... everyone builds two left or right at one time or another.
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Old 07-23-2003, 09:59 PM
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Default wing kit

Hi Sig charges us mer mortals more to order direct from them. ask your LHS to price a wing kit for you.


Or get the second kit for the parts you need, and have a pair!

Regards
Mark
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Old 07-23-2003, 11:19 PM
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Default 4*60 Major Boo Boo

"I have the outlines of the ribs, and just photocopied them at work."

Crash,

Be careful about photocopying.....99 out of 100 copiers will either reduce or enlarge the copy. Measure the original against the copy and reduce or enlarge on the copier to get the original and the copy the exact same size.

Good luck!!
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Old 07-24-2003, 04:34 AM
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Default 4*60 Major Boo Boo

If it were me (and someday it probably will be me), I would buy another kit.

The RC gods do not like it when you try to outsmart them, they will get their revenge. You made a mistake, and the RC gods know it, so its time to pay the piper.

This way, you end up with two planes. The RC gods are happy, you are happyx2, and your wife doesn't have to know (wink wink, grin).
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Old 07-24-2003, 06:21 AM
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Default 4*60 Major Boo Boo

The 4*60 is one plane that you can experiment a lot with - clipped wings, enlarged 3D control surfaces, sheeted wings and turtle deck, etc, etc. You could build two kits with different mods on each. In that case, your wing-half is not wasted. Or you could sell the second plane Just make sure you don't repeat the same mistake, or you'll have to buy a third kit, heh ! heh !
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Old 07-29-2003, 03:02 PM
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Default 4*60 Major Boo Boo

how about a 4* bipe Agwagon??? that would look cool
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