[gurps] Ultra-Ships according to Vehicles

[alaconius at roadrunner.com]

> Any ship that goes much faster than its hull speed (which is about 1.3
> times the square root of the length in feet at water line, answer in
> knots) is going to be planing, even it's not a hull that's well suited
> for it.  In a non-planing hull, it's a lot more expensive to go a bit
> faster than in a planning hull, and it can be terrifyingly dangerous.
> 
> 
> 
> -- 
> David Scheidt
> dmscheidt at gmail.com

I'd always wondered how that worked.  :)  I had problems trying to match the speeds given in GURPS with speeds for age of sail warships...