Fellow sailors, Please give me some advice on this topic. I have a 1972 Ericson 32. Her dimensions are LOA: 31'7", Beam 9'8", Weight 8,800lbs. We like to take guests out on San Francisco Bay for viewing of the Blue Angels flight team during Fleet Week in Octobers and are looking forward to taking guest out to see the America's Cup races. I feel very capable single handling Zealous, both the genoa and mainsail, with guests onboard. If it get's a little hairy and I have to drop a sail or otherwise, rev up the iron genoa and all is fine. My question involves what is a safe load for a craft such as mine. I prefer four aboard. For special events, as I have mentioned above I will take responsibility for three couples, six passengers on board. The forward section of the cockpit can squeeze five and I'll take the aft portion and by myself handle the jib sheets off the aft winches to no one is disturbed in the forward part of the cockpit by the sheets. Guests have a good time. I've noticed in these situations that the stern rides rather low and if I run the engine the exhaust is always underwater but have had no problems. When it's not too choppy, this all works out. What I'm wondering is if I am overloading Zealous. My lovely mate has asked to bring a seventh onboard, saying there's room if someone wants to hangout on the ladder in the companionway or get out on the bow in the sun. So far I have refused on skipper's authority, but I'd rather be able to say "Zealous can only handle X number of pounds of cargo". I've added up the average weight of us six baby boomers and it's 1,100 pounds. My fuel and water tanks are usually only half full and I'm not carrying any cruising gear. Can anyone tell me what a safe "cargo and passenger" weight is for my boat in the relative calm of San Francisco Bay?