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Old 11-17-2018 | 02:39 PM
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invertmast
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Originally Posted by speedracerntrixie




My Divergent fuselage is a single layer of 1.4 oz plain weave, 1 layer of 3.6 oz crowfoot, 1/32" contest balsa and another layer of 3.6 crowfoot. Following the layup I sealed the glass with some 1 mil painters plastic tarp and bagged. The complete fuselage with formers and gear plate came out at 39 oz. I could easily drop 4oz on the next one by adding some peel ply before the 1 mil plastic. I don't think the balsa soaked up much resin at all.

the inner layer of 3.6oz is really overkill in a sandwich layup like that. The inner layer could be the same 1.4oz fabric as the outer layer and i bet you wouldnt even be able to tell a difference strength wise.

Even better would be to replace the center 3.6oz with 2 layers of the 1.4oz with them on the bias so you have a “balanced” layup. Strength would be increased and you’d shave off even more weight.
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