No, it's a hobie 18 minus the hulls and crossbeams
You can check out the build of Gary Dierking's Tamanu hulls here
http://wikiproa.pbworks.com/w/page/1459 ... anu-Canoesand
http://wikiproa.pbworks.com/w/page/3210 ... -cat-ideasI might go with a hard deck aft and a front tramp like the H21SC has for my own version of a costal cruiser. As you see it in the pic above, it's all H18 except the hulls. I cracked the main beam in the tramp groove and had to limp the last couple days of the texas 200. That precipitated big box beams as version 2.0.
Not as speedy as the 18 since the max hull beam is 16" and the sections are flat, but it's a great load carrier for costal cruising & camping. My thought for this boat is to share the H18 gear and swap rig & rudders for the sportier ride of the 18. When cruising, go with the Tamanu hulls and the H18 rig. Either way it been fun so far!