On Tuesday, April 3, 2018 at 8:27:17 AM UTC-7, Jonathan St. Cloud wrote:

I know the Schleicher booms are strong, they are laid up with carbon and two layers of Kevlar.

Meh. Kevlar has a modulus so low that when it's combined with carbon it contributes absolutely no strength or stiffness until after the carbon breaks. When used as the inner ply, it's great for post-crash retrieves and repairs since the parts self-realign when the Kevlar snaps back to its original length.

--Bob K.