A cubic foot of solid steel weighs 490 pounds. The same volume of lead tips the scales at 707. Depleted uranium? Eleven eighty-six. Roofing pitch? Sixty. The fabulous void filling “ballast steel” we discovered? Three thirty. We know all this at Team Porcupine because all these things are sealed in the now completed and installed ballast keel. Why all these different things, you ask? Because the keel was a puzzle, and each of these materials was a piece. Ok, not the depleted uranium, but I wanted to make sure you were paying attention. With a calculated weight based on every
To determine the center of gravity, both fore and aft and vertically, of the Schooner Porcupine, we convened an accomplished team of friends. These locals included an engineer, shipwrights, boatbuilders, a sailmaker, a rigger, captains, carpenters, and sailors. Using highway scales, tape measures, plumb bobs, jacks, and trigonometry, this was accomplished. The current displacement of the Porcupine was also determined. These values give our naval architect an ‘as built’ starting point for calculations.