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Dimension for carbon fiber bar

Old 10-27-2018, 07:01 PM
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Default Dimension for carbon fiber bar


I am considering using 1mm x 4mm x 1000mm carbon fiber bars/ strips for wings up to around 60”. The wing could be single layer DTf or double layered with one sheet above the other. I would place the bar vertically into the planar surface of the wing.

The question is would this 4mm depth be enough for a good stiff wing or do I need to go up to 6mm?
Can I go thinner than 1mm thickness?

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Old 10-27-2018, 08:26 PM
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Its not only the 1mm x 4mm to think about - but also the 60" span vs the 1m strip length.

Depending on how the wing is mounted - that centre joint could be the killer ...

As to the 1 x 4 ... I do not use anything less than 4mm square or round section in models from 25" and up. But that's me - I tend to subject my models to loads no self-respecting pilot would !!

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Old 05-26-2019, 03:24 AM
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Default Dimension for carbon fiber bar

Does anyone have a set of Fzr cowlings that I can use to make a mold from? Going to fab some carbon fiber fzr cowlings.
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