I suggest that you bone up on Archimedes' law by following to this link http://www.walter-fendt.de/ph14e/buoyforce.htm
where you will find Archimede's law stated as Follows:
Law of Archimedes:The buoyant force is equal to the weight of the replaced liquid or gas.
Or to this site http://www.phy.cmich.edu/people/osbo...Chapter8.htm#F
where they also define Archimedes' law as follows:
A body partially or wholly immersed in a fluid is buoyed up by a force equal to the weight of the fluid it displaces.
The Ranger 22 is a pretty nice little boat, albeit a little more squirely in higher winds (winds over about 12 knots) than non-IOR derived designs from the same era. They make a reasonably good first boat, but are not the easiest boats to sail in gusty conditions.