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Scratch and Kit Built Aircraft Discuss and share your scratch built or kit built aircraft as well as building techniques, methods, mediums and resources.

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Old 10-19-2011, 05:01 PM   #1
Wildflyer
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Default Super strong corner construction

I am building an old Astro Challenger kit, I have had since the mid 80's. It will be modernized as far as motor, battery and ESC goes, but otherwise stock. I am starting into ALeS competition.

I reinforced the corners of the elevator and rudder with CA hinges, some of you may do this, but some of you may not have thought of it,
Basically it is simply cutting a slot into the joint after it is glued together and inserting a CA hinge or a cut piece of one as I did.

I think the pictures will show it better. I believe this way is stronger and lighter than putting a gusset in the corner.


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Dave R, Proud PGR rider.
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Old 10-19-2011, 05:41 PM   #2
kyleservicetech
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Default

Originally Posted by Wildflyer View Post
I am building an old Astro Challenger kit, I have had since the mid 80's. It will be modernized as far as motor, battery and ESC goes, but otherwise stock. I am starting into ALeS competition.

I reinforced the corners of the elevator and rudder with CA hinges, some of you may do this, but some of you may not have thought of it,
Basically it is simply cutting a slot into the joint after it is glued together and inserting a CA hinge or a cut piece of one as I did.

I think the pictures will show it better. I believe this way is stronger and lighter than putting a gusset in the corner.
Now that is a very clever idea that would add little weight to a model. And if you've got a Great Planes Slot Machine, that would make the required slot even easier to do!

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Old 10-19-2011, 06:41 PM   #3
Wildflyer
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Default

HI Denny

I have the slot machine, but I think I need to get new blades. When I tried it, the blades spread apart as they went in, so the micro saw worked much better and is not much slower than a slot machine.

10 of my full size CA hinges weigh 1.2 grams, I cut most of them in half, so each joint is 0.06 grams, plus the CA clue it self, I don't know how much that would weigh but not much.

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