Thank you, David, for sharing your opinion. It's better as I, as the designer, can do it.
By the way, we also used the Yamaha 9.9 on our Pelican, which is, as you will know, a 10 m catamaran.? The same engine on the KD 860 gives you between 7 and 8 knots. speed.? It would be stupid to build the boat in a foam carbon sandwich. By the way, I would never re-design the boat. The result would be not a better boat but a boat that costs 5 times as much as the original design. And as David mentioned, the skill to build in carbon fiber is on a different level. Hydraulic steering for this boat is like a bad joke. I already find wheel steering unnecessary. Domenico in Italy changed consequently back to tiller steering.? You can order the plans directly from me. If you want to order, email me, and I will instruct you on how to do so.
Bernd Kohler