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Old 03-21-2007, 04:46 PM   #1
agnew airway
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Small scale Spitfire ailerons:

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I am at the point of hooking up the ailerons on a 29" Guillows Spitfire and am thinking about using torsion rods, bamboo spits, that will pass from the outer wings through the ribs to a servo in the fuse. The wings will be permanently stuck into the fuse. The bamboo spit will also act as the hinge by passing longitudinally through the aileron into the bracketing ribs.
Any thoughts, ideas or advice? :
"Poor bloke didn't even look around"
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Old 03-21-2007, 06:16 PM   #2
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Why bamboo?

I have little experience with small scale rc but too much experience with torque tubes (not a fan). I bamboo a good material for resisting "wind up" or is it just a convenient material/shape?
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Old 03-21-2007, 09:13 PM   #3
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One of the great things about bamboo is that it will take torque better than wire, yet still resist a crash nearly as well. I suggest zigzag hinges (ripstop nylon) and install the bamboo into the aileron, rather than go through the bearing routine.

I go through a lot of bamboo; I use it as a joiner between elevators, leading edge reinforcement, anywhere that I need stiffness, toughness, yet a bit of flexibility. It is tough, light, and cheap; not much else to recommend it...
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Old 03-22-2007, 08:43 PM   #4
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Ya, I think the bamboo spits that you can buy at the grocery store or dollar store are cheap as hell and sadly underrated. And you're absolutely right; they are flexible along the length but stiff torsionally. They are great for pegging firewalls and engine mounts and 1/4" stock or peg inserts for hatches and canopies. The sharp ends are also useful for dabbing paint onto little parts that may otherwise jiggle loose. Just wipe clean and use again. They are much stronger than toothpicks. Make sure you put it where you won't have to remove it since they are tough to sever with an x-acto blade or razor, (from experience). And I'm thinking about your hinge suggestion, thanks.
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Old 03-22-2007, 11:39 PM   #5
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Bamboo skewers fit very nicely through coroplast as well.

I watched a coroplast spitfire cartwheel across the field and fly again ten minutes later. (36" span? maybe 40")
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Old 03-25-2007, 06:48 AM   #6
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They make great pushrods too.
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