Also I'd like to point out that this guy seems to think that Carbon is the end-all-be-all of construction materials. He seems to know enough about it to be dangerous...
Both of rudder heads show voids in the aluminum castings, so still looking at what to do. Something carbon though. The rudders and daggers seem quite good, if only I can get my rudders to stop leaking.
Really, I'm not familiar with the design or construction of the F18HT boats, but making things out of carbon, that are not suited for that material, can cause failure.
(Reminding the readers that this is coming from a guy thats intending on purchasing an all-carbon tornado..heh)