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Building Tips and technical articles. => Building techniques => Topic started by: Geoff Goodworth on November 20, 2011, 05:26:41 PM

Title: How do you fit your wings into fuselages?
Post by: Geoff Goodworth on November 20, 2011, 05:26:41 PM

G'day!

There are numerous ways of fitting wings into fuselages—both profile and built-up—and the different wing types. How do you do it when the wing has flaps and the flap horn is located with brass horn retainers/bearings?

I have to say that I am a bit reluctant to cut the bottom out of the fuselage like the ARC/ARF models are done and I have never seen a drawings of an I-beam wing that shows how it's done with the TE.

Title: Re: How do you fit your wings into fuselages?
Post by: Wynn Robins on November 20, 2011, 08:20:59 PM

not many options once the control horns are in place - most people (as far as I know) do the cutout in the bottom of the fuse - it is the easiest way to ge it all in there and very simple to complete.

I-beam wings are built IN the fuse  - so the wing spar, LE, TE and controls are built before the ribs go on

Title: Re: How do you fit your wings into fuselages?
Post by: Tim Wescott on November 20, 2011, 09:21:25 PM

I suppose you could cut straight back from the wing to make room for the horn, but I imagine most designers want to put a bulkhead right behind the TE, so you'd have to dodge that.

Title: Re: How do you fit your wings into fuselages?
Post by: Avaiojet on November 21, 2011, 09:30:42 AM

Put the loose horn rod in place in the airfoil opening on the fuse, slide in the wing then attach the flaps after to the rod and wing.

CB

Title: Re: How do you fit your wings into fuselages?
Post by: Bob Reeves on November 21, 2011, 05:43:24 PM

Cutting the bottom is the easiest and in my opinion the best way to do it. I use 1/32 ply doublers when I put the side pieces back in but that's probably overkill. Bob Hunt has a video that shows how he does it. He puts a couple formers in to hold the cut sides in alignment, pretty neat and if it's good enough for a world champ it's durn shure good enough for me.