Bill,
You can get hybrid at US composites (link on the site). You definitely want
to use hybrid or kevlar under your carbon on blades. Don't use it on outer
layers because it will turn into a mess. Straight carbon over foam will lead
to failure at the bottom of the trunk. Carbon hates side loading and
fractures easily. Kevlar's strong suit is side loading (they use it on bullet
proof vests) and it will disburse the load at the bottom of the trunk and
cassette and keep the carbon from fracturing. It will also keep your trailing
edge
from fracturing.
I always lay up the entire blade in one process. Just did one today (see
PDF that I'll send tomorrow--got to work on a list for Greg first).
Best regards,
Bram
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