The A2 has a mesh tramp with tubes on each side that are attached fore and aft, but not to the hulls (along the sides). Nobody complained after sailing in a good breeze at the North Americans- so it seems to work.
Dacarls:
A-class USA 196, USA 21, H18, H16
"Nothing that's any good works by itself. You got to make the damn thing work"- Thomas Edison
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