I guess I'll useHeath Robinson'sHS93 Hypothesis, stick it in the bath, load up all the gubbins and see if it floats!
Er, you could also try Simpsons Rule. Which is definately beyond Martin and my ability.Simpsons Rules are basically quite simple....but long winded. They involve you in (mathematically) slicing up a hull and then aggregate out the volume of the slice. The more slices you have, the more accurate the result. And the more slices you have, then the more sums you have to do. No matter what "deck level" you wish to stop and calculate the end result is a measure of volume. For model making ....forget it. But also forget stuff like buoyancy. Archimedes got it right a few years ago, and his idea hasn't been bettered or proven wrong since he shouted out "Eureka" to a startled populace. BY.