I'm building a boat model out of LEGO and I need to decide which boat hull to use. I need the smallest that can carry 485g of load. Where can I get information about water displacement of unitary LEGO boat hulls? I can compute upper bound based on the dimensions, but I'm afraid that will be a big overestimate.
It looks like the simpler problem would be to evaluate the boat hulls you could possibly find to see if any would displace 485 grams of water with enough free board to stay afloat.
Here is a list of all of the unique boat hulls I could find on bricklink that looked to me likely to hold water:
There are over 200 variations of these parts with colors and prints. Have fun!