Finding righting moment in the field.

[mariner2k]

Hi Brian and thanks for taking time to answer my other questions. This question regards finding the righting moment at the dock. My boat is a 1988, 45' wooden ketch. Somewhat neglected before I got her. Both box masts were in rough shape. I've since rebuilt the mizzen, so I'm good there. The old one fell in two pieces while lowering it. Makes it easy to transport. She's one of a kind, and the builder has since passed away, so I cannot get any of the original engineering on her.
In your book you describe a way to find the righting moment at a dock. The thing is, I'm not sure I can get enough heel by placing people on the gunwale.
My question is: if I use the boom as leverage ( essentially moving the weight outboard) does that change the equation as far as using the weight of my friends in the formula to find the righting moment?
It seems I would be incorporating the mast for leverage. Unfortunately I don't know what the ballast weight is. The only thing I have been told, and this was a rough guess from the original boatyard, is that the fixed ballast is around 6,000 lbs and the internal ballast is somewhere around 4000 lbs. But they were guessing from memory so it could be off.

Note: The boat was built by Muller Boatworks in Brooklyn, NY. Mr. Muller had been a wooden boat builder his whole life. From what I've read and heard, mostly commercial fishing boats. However they were the builders of the original "American Pride" schooner.
This was a boat that Mr. Muller had built for himself while he was in his 70's. The story goes, someone had given him a ballast and he designed the boat to fit that. hence the internals ballasts. She's a beautiful double planked hull and is the first wooden boat I've ever owned that absolutely does not leak. Mr. Muller became ill before she was totally done, but from what I understand he dragged himself out to see her launched and did get to sail her a few times .
Thanks, Kevin

[Brion Toss]

Hello,
You don't have to use people for an incline test, it is just usually the easiest and most fun way to do it. Large vessels use concrete-filled barrels, set aboard with cranes. You should be able to heel your boat at least 10 degrees with humans, but a smaller weight at the end of the boom will work just fine.
Note that the weight of the ballast is not a consideration here; it is the length of the righting moment lever arm (center of gravity to center of buoyancy) that matters.
Fair leads,
Brion Toss