----- Original Message ---- From: Peter Pisciotta <peter@seaskills.com> To: Passagemaking Under Power List <passagemaking-under-power@lists.samurai.com> Sent: Sunday, July 29, 2007 5:56:54 AM Subject: [PUP] Fuel Tanks and trim - trade-offs >Willard took a >different approach: two thwartship tanks located >midship, more or less beneath the pilothouse area (or >lower helm on the sedan models). This greatly lessened >the trim issues, either P/S or fore/aft. The Naval Architect for the Willard 40 (Hale Field, deceased in 1990) located the fuel tanks at the CG. Therefore burning fuel does not affect trim, fore or aft, port or starboard. The hull just gets lighter in the water, all the way around, as fuel is burned. The amount of fuel on board does not affect the ride to any great extent since there is 7000 pounds of ballast deep in the keel which draws 4'-3". I do notice that if the fresh water tank, located just forward of the fuel tanks, is full (300 g.) I am bow down about an inch or two when at rest. However that is good because it self corrects when I am under power so the the hull rides on her lines as the stern squats a bit. Hale Field, although not a household name, was a designer with great vision and ingenuity. The trade off is that the interior accomodations on the Willard 40 are not as generous as many other trawlers in this size range. However the accomodations are more than adequate for 3 full time crew or 2 crew and 2 guests for a period of time. I have had 6 people, all sitting on benches, in my engine room at one time though. Patrick Willard 40PH ALOHA La Paz, MX