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Ziroli Stuka Flap question

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Ziroli Stuka Flap question

Old 03-16-2007, 03:02 PM
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Default Ziroli Stuka Flap question

Hey guys, i bought a stuka the other day and as i am looking over it and replacing things i noticed on the split flaps there is some slop, which looks like could lead to some fluttering issues.

This pic shows where it's at, that dowel isn't quite big enough for the hole in the other part of the flap. Any suggestions on how to fix that? Throw some epoxy in there?

Old 03-17-2007, 06:32 AM
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Default RE: Ziroli Stuka Flap question

I don't have anything like that on my Stuka and I've not had any flutter issues. I just have the hinge which is a rod that passes all the way through the LE of the flap and through the mounts on the wing. Remember that this plane is not a rocket and isn't meant to be flown like that. Even if I crank my Stuka up to full power in a dive I don't get any flutter. This is the best pic I can find of the flaps on mine right now. If you just try to fill that hole with epoxy your going to glue that dowel solid, then your flaps won't drop. The way the flaps work on this model is, the gap between the two flaps opens up as they drop. The best way to fix that I think would be to remove the flaps, fill the hole solid and redrill it to the size of the dowel. When I got my Stuka I ended up doing a lot of repairs and making new flaps and ailerons was one of those repairs.
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Old 03-17-2007, 10:52 PM
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Default RE: Ziroli Stuka Flap question

I have working flaps with now slop.
I know some boby that let his just hang freely, I seen it fly no flutter at all.

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