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Old 10-09-2011, 08:52 PM   #1
Monterey10
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Question Alpha 450 landing gear

I scrounged up a used Alpha 450. On my 4th landing, the plywood block that holds the rear landing gear fell out. (on a fairly smooth landing I might say) Looking at it, it appears that there was just a tiny amount of CA (?) holding the balsa block into the airframe. Because of this, there was no damage to the block or airframe.

I am inclined to use epoxy on the block back to attach it to the air frame. This would give it more strength. Is this the correct idea, or, shall I use a minimal amount of CA, to allow the landing gear to break away again ?

I suppose the best idea would be to have it rubber mounted so it gave on harder impacts and still held the plane on normal landings. I don't see how I could do this on the bottom of the plane.

Thanks in advance.
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Old 10-11-2011, 07:32 PM   #2
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Originally Posted by Monterey10 View Post
I scrounged up a used Alpha 450. On my 4th landing, the plywood block that holds the rear landing gear fell out. (on a fairly smooth landing I might say) Looking at it, it appears that there was just a tiny amount of CA (?) holding the balsa block into the airframe. Because of this, there was no damage to the block or airframe.

I am inclined to use epoxy on the block back to attach it to the air frame. This would give it more strength. Is this the correct idea, or, shall I use a minimal amount of CA, to allow the landing gear to break away again ?

I suppose the best idea would be to have it rubber mounted so it gave on harder impacts and still held the plane on normal landings. I don't see how I could do this on the bottom of the plane.

Thanks in advance.
That's exactly what I would do M-10. Not a whole lot, but at least 2 or 3 drops on every mating surface.

The front gear is pretty sturdy on mine, so I believe if something bad enough happens to rip the rear landing gear off- you're going to be doing some pretty serious fuselage repairs any how!

Please Keep us posted on how it goes!

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Old 10-11-2011, 08:06 PM   #3
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Use epoxy and some triangle stock to increase the glue area.... That tri stock has a huge glue area on the block and transfers the load to the sides...
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Old 10-11-2011, 09:43 PM   #4
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f you can use nylon bolts to hold the gear in place, use them! They shear off easily and save the fuse from damage most every time. I would rather do that and securely glue in the wood block.
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