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Wet field

Sat Nov 11, 2017 9:08 pm by Gary M Jones

Went to the field in the forlorn hope of someone being there.. not to be.

FIELD SECURITY .... The gate padlock issue seems to have been resolved with 'farmers' twine' !! This is now the only security & whoever has done the job has been to …

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Wing attatchment mod

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Wing attatchment mod

Post by Stubbsy on Sun Jan 09, 2011 9:26 am

Okay, might be a stupid question for some - but if you dont ask, you dont know!
Is there any way of modifying a wing so it doesnt need to attatch to the fuse with rubber bands?
Im looking for a secure way to do it but still need the wings detachable for transportation!
Only thing I could come up with was some sort of bolt and bracket assembly with a fuselage access panel cut into the bottom of the model!
Looking to try to mod a heavy Wot 4 type model!
Cheers for any suggestions!
Ben...........
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Re: Wing attatchment mod

Post by Rich on Sun Jan 09, 2011 9:53 am

two dowels glued into the front leading edge with holes in the former to accept, then a plate glued at the trailing edge inside the fuz with a blind nut & bolt. reinforcment is required at both points

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Re: Wing attatchment mod

Post by Guest on Sun Jan 09, 2011 2:33 pm

Whats wrong with rubber bands! If you catch a wing tip on landing they will provide a degree of shock absorbtion and give thus avoiding a damaged fuselage/wing. A rigid mount is not as forgiving. But, if that's what you want then as Rich says.

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Re: Wing attatchment mod

Post by Stubbsy on Sun Jan 09, 2011 3:53 pm

Just got something about rubber bands Allan - nothing wrong with them, but Iv always thought they make the plane look like the wing attatchment was an after thought! Neutral
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Re: Wing attatchment mod

Post by Andy Sayle on Sun Jan 09, 2011 7:45 pm

If you use a nylon bolt on the wing retaining contraption, and size it correctly, it should shear in a wingtip arrival...

Andy

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Re: Wing attatchment mod

Post by Rich on Sun Jan 09, 2011 7:49 pm

lots of flyers actually cut through the bolt slighty to make it shear easier

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Re: Wing attatchment mod

Post by Andy Sayle on Sun Jan 09, 2011 7:56 pm

Might as well use a smaller bolt then though, it would be more consistent too Smile

The other thing I have seen, is the leading edge dowels fitted into thinwall steel tubes, but not glued. They can then shear if needed too, and are dead easy to drill out and replace if needed....

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Re: Wing attatchment mod

Post by Rich on Sun Jan 09, 2011 7:59 pm

No because you cut the bolt above where it goes into the blind nut this gives something to grip so you can get the blighter out with pair of pliers.

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Re: Wing attatchment mod

Post by Allan Patrick on Sun Jan 09, 2011 10:11 pm

To remove sheared off nylon bolts a) Find an old small flatblade screwdriver that will fit inside the blindnut. Heat gently and force it into the bolt. Then turn. Be careful not to use too much heat or you weld the bolt to the blind nut. Too little heat - just try again a bit hotter b) Drill it out and retap or prise out the remaining plastic with something small and pointy

But, yes, its better to have the bolt shear off with something to grip
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