"Can anyone name the oldest liferaft mentioned in literature? The design parameters issued 'from above' must have been pretty good, one of our first modern battleships, BB-3 USS Oregon's architect using those exact measurements in it's design."

Noah's Ark? But the measurements are off.
And God said unto Noah, . . . Make thee an ark of gopher wood; rooms shalt thou make in the ark, and shalt pitch it within and without with pitch. And this [is the fashion] which thou shalt make it [of]: The length of the ark [shall be] three hundred cubits, the breadth of it fifty cubits, and the height of it thirty cubits. A window shalt thou make to the ark, and in a cubit shalt thou finish it above; and the door of the ark shalt thou set in the side thereof; [with] lower, second, and third [stories] shalt thou make it. " (Gen. 6:13-16)

A cubit is the distance between an adult's elbow and tip of the finger, generally 18-inches. Most Hebrew scholars believe the cubit to have been between 17½ -21½ inches long. This means that the ark would have been 450 feet long, 75 feet wide and 45 feet high if the 18 inch cubit was used. If a larger cubit was used it would have been proportionately longer.

USS Oregon Length: 348 feet Beam: 69 feet 3 nches Mean draft: 24 feet