Originally Posted by Dean Ferry
Doesn't look like they are disagreeing with me at all.
In fact everything I read is supporting what I have posted, including what you have in the links and the links to the PDF statistics of carbon fiber, they are stating that the carbon is used in a composite form for its "stiffness & strength" qualities.
I don't see where anyone has ever ever used it as a standalone laminate for an offshore hull.
As for Earth Race, and their propellors made of carbon? I have the video links listed on my website. They had a propellor failure which cost them alot of time during their race. I believe it splintered which is what carbon will do when pushed beyond its capabilitiies.
That is the scary part of carbon. You have no warning. Look at how many of those sailboat masts have snapped in half on those race boats. You have to finish to win, and it is always better to come back alive and win and not have a catastrophy of having a boat blow apart.
Earth Race's success has alot to do with the hull design as well. It is deigned to pierce through a wave with its high degree of a vee and not go over them resulting in not getting airborne and having to take that impact on a flat surface.
With a simple Google search I found this on Earthrace:
What is Earthrace made of?
The hull is made from sandwich composites. This involves 40mm of Diab foam core, sandwiched on the inside between three layers of carbon (which allows the boat to be strong and incredibly light), and on the outside between three layers of carbon, one of Kevlar (which gives the hull outstanding impact resistance, and one of e-glass (which is used as very thin fairing layer).
As far as the head in OL ?
I wouldn't think anyone is concerned about what the toilet is made out of. They are just looking for an end result of the boat's overall weight. That is one of the places you can save weight being as it really isn't a high impact area. Unless of course you plan on trying to take a dump while running in 8 to 10 footers !
Then again, I don't think anyone in their right mind would take a dump in one of those boats in the first place...