Jacket and case manufacture. 1  3 The jackets of the 8-inch and 5 1/4-inch disks are cut out of polyvinyl chloride (PVC) stock to appropriate size, and the fabric liners laminated to them. 2  4 The case or shell of 3 1/2-inch disks is molded out of hard plastic.
Aft: generally anything astern of the z-axis mid-line of a vessel; diminutive of the word after. Bow: the forward section (or fore) of a ship. Stern: the rear section (or aft) of a ship. Port (side): the left side of a ship from the perspective of a person standing on board and facing the bow of the ship on the bridge. Starboard: the right side of a ship from the perspective of a person standing on board and facing the bow of the ship on the bridge.
somewhere on or in the ship. outboard attached outside the ship. port the left side of the ship, when facing forward (opposite of starboard). starboard the right side of the ship, when facing forward (opposite of port). stern the rear of a ship (opposite of bow). topside on the ship's main weather deck. underdeck