80 knot yacht?

Wow thats going to be something very fast .I am sure it can be done light building technics and lots of horses

Francois

Tan, can you please allude to what 'Twine' is...what does she look like?...never heard of her..

TWINE is an acronym for "The World Is Not Enough".

Speaking of TWINE, I was just watching a re-run of her on the travel channel. one of our members has his advatar a pic of her bow high . IIRC I think someone explained that might have launched off a wave.But watching her run on the TC she was running that high at 61 knots with 90% turbine power. They did admit some control problems.

My question,as I remember she was being lengthened,I am correct this was done to move the CG to lower the bow so full power could be applied? Will Twine be faster even with the longer hull under full power with the correct posture? Or do you think she will be just a longer yacht still able be maintain the 61 knots?

I don't follow that closely,maybe the refit is done and the answers are known,but any how,would someone like to take a jab at my questions ,whether the answer is based on known fact or your informed opinion.

Oh My goodness....i didnt know that...it seems so far from it...i guess i should have known that....i feel so embarrassed now.

Yes I am aware of that but if stabilty is lost you must slow down. While most strive to reduce water line friction,I assume there must be enough so the yacht maintains longitudinal stability, so stern doesn't want to pass the bow. Hmmm....... with that much hp and pushing the speed and design,Would it be possible for a yacht that size to swap ends in a high speed turn? ......wouldn't that be a sight !!!!!
With the Bow that high I would suspect that the pump inlet problem may also be True. The inlets could be digesting some air. Another reason for the extra length.

I'm sure Carl has some input on this if he can share.

A little late to respond. Sorry guys, on the road and in meetings for the past 48. On TWINE... I'm not really at liberty to discuss.

Anyhow, Michael Bach from Rybo would be best to inform on the outcome and performance on TWINE's refit because I haven't seen the boat since. Unfortunately, Mike's still in Monaco, but he should be back tomorrow. Might be awhile before he logs-on because he's got some catching up to do... you know, learning to speak English again, drink cold beer, etc.

BTW... the hull WAS NOT extended, just the upper aft decks. And YES... adding weight aft could present a CG problem.

Regarding WDRZL's questions... could the M-140 swap ends? Absolutely! "IF" the M-140 had sufficient thrust deflection, YES, this is entirely possibly.

With regards to TWINE launching off a wave... let me pose this question... you have a 28 million dollar yacht with an interior designed by Evin K. Marshall. Would you go wave jumping? I think Knot!

Could it be done? I honestly don't know. I never had the opp to take 140 feet of luxury yacht and hit a 10 foot swell at 70 knots. Don't expect I ever will. But I will tell you this... the picture you're seeing in Kevin's avatar is something the M-140 can do at will. With 280 square feet of trim tabs, Staluppi can look at the moon, or stare into the abyss. Dealer's choice.

70 knot yacht gets an extra 700 square feet. Here's a pic of the extensions. The skylounge level is draped in Eisenglass, giving a large air-conditioned aft deck. This is an idea that may catch on...

I do not like it...honestly...i think it ruined her looks...at least from that angle...she looked so nice and fast before (sleek)..well still is but just different and i am not so sure if different for the better or worse.

I wonder if the "cool deck space" could be maintained with a air curtain ??? ,instead of all the enclosure. I'm sure it could be maintained when at dock but studies of turbulence would have to be done when she's underway or to see if the curtain can be maintained. I even thought of curtains starting from the radar arch, keeping the fly deck cool being completly open. The main problem would being able to maintain enough cfm & velocity and still maintain acceptable noise levels out of the diffusers.
Has anyone every done this ?

That's a very interesting thought, wdrzal! Like you pointed out, I'm not sure how realistic it is while underway, but even so, it'd be great at the dock (noise permitting). I don't really see it working that well on the flybridge, but on the lower decks I think there's potential. Neat idea.

Hi,

That would have to be Project 305 a multi Gas Turbine boat that has been under construction for at least 5 yrs, there have been many engine and engineering problems and the last thing read about it was a month or so back when an Engine Room fire on yet another Sea Trial forced it to be towed back to DML.

I just saw your second post, from what I hear it won't be ready for delivery any time soon.

Hi,

I am not involved in Project 305.

Read all about it: http://www.thisisplymouth.co.uk/dis...uleName=InternalSearch&formname=sidebarsearch

It will probably be a while yet before she emerges from her engine room refit.

Are they looking for a record in 'Longest Build' for Project 305?
Will try to coach some friends at DML to have a peak.

Talon