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General control line discussion => Open Forum => Topic started by: James Mills on December 04, 2009, 06:31:30 PM

Title: Removable wing for an I-Beam
Post by: James Mills on December 04, 2009, 06:31:30 PM

I'm planning to build a Colossus from an Umland kit and would like to build it so the wing is removable.  Does anyone have any suggestions and or pictures to help?

Thanks,

James

Title: Re: Removable wing for an I-Beam
Post by: Wynn Robins on December 06, 2009, 01:32:19 PM

the Cobra 60 by Henk De Jong also has a removable wing - it is I-beam also.  The main wing comes off in once piece, much like the Impact

Title: Re: Removable wing for an I-Beam
Post by: Randy Powell on December 06, 2009, 09:38:38 PM

I've got plans for an I-beam that will have plug in wings. That should be fun.

Title: Re: Removable wing for an I-Beam
Post by: Dennis Adamisin on December 07, 2009, 06:43:59 AM

I think an I-Beam is a natural for plug in wings, less so for a 1-piece bolt-on wing - hoping to start one in a week or two...

Title: Re: Removable wing for an I-Beam
Post by: Claudio Chacon on December 07, 2009, 07:28:22 AM

James,
Here you have some larger pics:

Title: Re: Removable wing for an I-Beam
Post by: Claudio Chacon on December 07, 2009, 07:30:12 AM

...

Title: Re: Removable wing for an I-Beam
Post by: Claudio Chacon on December 07, 2009, 07:31:29 AM

...

Title: Re: Removable wing for an I-Beam
Post by: Claudio Chacon on December 07, 2009, 07:36:06 AM

Something I forgot to comment: The beam is sheeted with .007" unidirectional carbon fiber on both sides.

Title: Re: Removable wing for an I-Beam
Post by: Neville Legg on December 07, 2009, 09:59:00 AM

Would it not be easier to make the wing in two halves, and slide them on to a carbon fibre joiner. The I beam would make an ideal receptacle for the joiner, probably lighter than all the plywood and bolts needed for a bolt on one piece wing? The fuselage would be stronger at that point too!

Cheers      Neville

Title: Re: Removable wing for an I-Beam
Post by: Rian Hogsett on December 07, 2009, 09:03:31 PM

A yet unproven "take appart"  that I have been looking at. the Alum. bar would be heavy, thinking carbon fiber or phenoic could be used in place of Alum. This could probably be adapted to an I-beam wing--- Any thoughts?