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True, carbon fiber composites nearly always have greater stiffness and ultimate strength vs fiberglass

However, carbon fiber is also electrically conductive, vs fiberglass which is insulating, so that might be just a bit of a problem for a circuit board base... (perhaps solvable, but not the usual near-drop-in upgrade)

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Yes carbon fiber its an amazing material for lightness and robustness, but we cannot see a way to innovate there with the usual separate parts and its needed cables. ArduBee its without a single wire, ready to fly, apart the motors wires. This in particular for micro drone is really a weakness in terms of flight time and aerodynamics.

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