Re: Looking for information on a 1957 Cruisers Inc., 16 foot
It will be plywood lapstrake construction - it will not swell up as much as a dimensionally planked lapstrake boat. Plywood lapstrake needs to be pretty much tight when it goes in the water. If there has been epoxy applied to the hull that would make me tend to walk away from it.
As has been said, check below the floor boards (not "floor" this boat has no "floors"), the keel batten, ribs (usually crack at the turn of the bilge), bottom of the transom, and sight along the bottom of the keel on the outside to see that she hasn't hogged (the keel should be nice and straight as you look along the bottom of the boat. If the keel goes up a bit as it moves forward from the transom, and then back down again a couple of feet forward (sort of concave), - probably at a trailer roller- that is "hogging" and it could / would cause a performance problem at higher speeds. It will tend to push the stem down and can make for squirrely handling.) Also check the hood ends of the planks where they fasten to the stem and transom. At the stem the planks should be seated nicely in the rabbet and not raised or sticking up. At the transom the plank ends should end nice and cleanly, there should be no 'goo' or sealent showing or sticking out of any seams. When looking her over look for discoloration under any varnish (darkening indicates water staining under the varnish and should be checked out), and lifting paint similarly can indicate water got under there and should be checked out.)
"Cruisers" and "Thompson" were two separate companies (added) they were closely related by family, but they were separate.