On Apr 6, 6:52 am, "Wayne Paul" wrote:

50 ply! How many layers of graphite are used in the construction of the
average sailplane?

Average, I couldn't say. But when we made Brad's carbon fiber HP-24
fuselage, we used the equivalent of about 5 plies at 0.010" (0.25mm)
per ply. In thickness, weight, and stiffness it came out to be about
like what the European factories do.

Thanks, Bob K.