I'm not arguing with Alex. I'm saying that there have been a number of monohull designs that take advantage of what you describe. It is unfortunate that I can't find an example. But it has been done before.Hi wooki
Your example makes my point. The outriggers are amidships not aft and you have a similar balance of bouyance foreard and aft. This vessel is more akin the the MV Triton the the indonesian example. Teh yacht is still pretty light construction and I would expect it to have operating restrictions.
The design proposed in the thread has long thin bow all forward of the outriggers and has diminsihishing bow height,
In slight seas will will cut trough the waves (piecing) but as soon as the swell gets up (and if it is a short swell) it will start to bury the bow and then resistance will actully reduce speed.
Even in long swells of moderate or greater size long thin hulls will tend to bury the bow and the stern when the vessel is in a trough as there is limted bouyance aft.
Its pretty simple to do, as it really is along the lines of the original torpedo boats before they made them submarines.
The only real issue is increased maintenance, as the engines don't like being starved of air as the platform punches through the swell. Essentially you need schnorkel tech. The other issue is that you need to spend more money on the superstructure, armored glass and what not, but that is not as big a deal as the increased maintenance of the power plant.
As to the LCF, the little pontoons aft are at the exit of the monohull. So it's six of one and half dozen of the other. If you are worried about it, you just make the monohull sleeker.
So, my assessment is that I can see what the designers are trying to do, but there are better ways to do it. I just don't have the time to do a patent search and find the flared chines I was speaking of so you can get rid of the pontoons.
cheers
w
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w
ps: and we must have posted at the same time, as I missed your points on following seas and talking about pontoon position. A semi submersible like this design is fast. If it stops or slows down enough that a following sea can catch up to it it becomes a vomit rocket.
Maybe that is what the pontoons aft are for (to provide stability when she is stopped).Who knows?
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