Theoretically there may be a drag disadvantage, however the hulls are pure aeofiol shapes so they should have lower drag than a normal catamaran hull. Also they should not need a keel which creates drag and may not need a rudder. Also with four hulls there is an opportunity for wave cancellation, which I have not yet investigated.



As for the articulation it is all in my original patent, I have not shown it on any of the pubished concepts as I think it may be a bit much to take in. Though it does mean that the front hulls can pivot to avoid pitchpolling and the rear hulls could possibly be to steer the boat.



All of these will add cost and complexity but I intend to try out all the possibilities over the coming months.