USS Hawaii, CB-3 Alaska class large cruiser, launched 3 Nov 1945, never completed. 29779 Tons, 809' LOA, 91' Beam, 35 knots, 9x 12" guns, 4 shafts, 1 rudder Treaty Stats: Classified as a battlecruiser Allowed 3 side mounts, two on one side if in separate turrets, all quadrants can be covered Speed: 25 seconds/100' Units: 4.5 Displacement: 22.34 - 25.70 pounds Rudder: 3.75 sqin Pump: 0.75 or 1.0 gallons / minute Units as configured: 1.5 unit (75 rounds) side mount in A Turret 1.5 unit side mount in B Turret 1.0 unit side mount in C Turret 0.5 unit 0.75 gpm pump Hull The Hawaii is made from a fiberglass hull, originally cut for fast gun. I'm at least the fourth owner of the hull. The hull is set up with 1/4" ribs, 2" bow hard area and a 1" stern hard area. One of the main differences of Treaty is that is requires lower powered guns. Each gun is tested against 2" foam. To pass the test, the BB must not penetrate through the foam. This allows Treaty ships to be built with lighter structures and no rib reinforcement is necessary. However, without rib reinforcements, the internal armor tends to lay right against the balsa side, which is a problem. So I printed some standoffs with my 3D printer to keep the armor a reasonable distance from the sides. In this picture you can also see the 4-40 bolts with two nuts on the ribs to hold the armor in place. While I did not put these in myself, I have found they work very well, allowing the armor to be secured in place but also removed easily. The internal armor is made from shower plan liner. It is very durable and stops all the BBs easily. If you look closely at the picture, you can see the bolts sticking through that are used to align and hold the armor in place. I like to remove the armor after each weekend of battling, remove all the BBs behind it, and allow the balsa to dry before I put the ship away. One of the things I do with most of my ships is to use 1/4" diameter by 1/16" thick neodymium magnets to hold the decks on. Fortunately when I got this ship, the decks were pretty rotten. So when I replaced the decks I put in the magnets. In this picture you can see the magnets for the bow deck. Magnets are also used in the center section under the main superstructure. I do have two thumb screws in each of the deck sections with guns - that way firing the guns will never displace the decks. To keep a good seal with magnets you do need to seal the decks very well so they will not warp. I use West Systems Epoxy and always seal both sides at the same time. The deck still sits flush and gives a good seal after two years of battling.