Without looking at the drawings I remember it at 18 1/2" from the water line to the crossbeam at rest. The beams de-mount by sliding in a sleeve so right now the plan is to have them straight. The shape is elliptical to help reduce windage and wave slap. Another thing I was looking for was the beams to mount flush on the ama and not Hobie 16 style.

Both ama's touch the water but they have rocker in the design so it does not tip to the side at rest. The ama’s are canted 15 degrees, when sailing the main hull is just breaking the surface of the water and the ama is at the proper angle the windward ama will be lifted so it will have more clearance to the waterline. Also the boards and rudders are in the ama's not the main hull.

As for slow tacking I'll have to see how it does compared to other 17' wide multihulls. Multihulls are not the fastest tackers to begin with.