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>
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> And of course the Sport Cruiser is a conventional aluminum construction, FAR more labor intensive than say the very similar
> Stingsport, a composite "spray into a mold" that should be far cheaper, but it isn't.
> >
"Spray into a mold" WOULD be cheep!
But we don't build airplanes with chop-guns like we used to do with boats. Thay are all laid-up by hand, paying close attention to the orientation of the plys, the number of layers, type of resins used, and frequently autclaves are needed to get that nice strong-yet-lightweight structure that composites promise.
I've had quite a bit of experience doing composite repairs on a LARGE Carbon-fibre airplane. They are terribly time consuming, extremely precise in their execution, and required ultrasound equipment to verify that the repair was done properly. I wouldn't want to do it "in the field".
I like the IDEA of composite airplanes, but they haven't proven to be as practical in real-life.
Rick
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