Flotation foam for Boats. There are 2 ways to put foam flotation in the boat. The outside edges of the pods are angled to match the angle of most jon boat gunnel walls. However, it is possible to add some additional, low-cost buoyancy to the hull and greatly improve your chances of surviving a flip with almost no water ending up inside the boat. Fb = Amount of Flotation need to support the swamped boat Fp = Flotation needed to support propulsion equipment They’re a staple on duck hunting boats and common on many other aluminum boats including catfish boats. NOODLE FACTS It is a 15 foot aluminum jon boat with plenty of open space in the front and on the sides to add foam. (or kg per cubic meter) G = A percentage of the weight of Machinery (engines, sterndrives, outboards, etc., usually 75%) For Outboards See Appendix A at the end of this lesson. Use ONLY marine foam. CTMD Posts: 276 Top. The choice was easy. Pods are to be welded or bolted to stern of the boat. This is on a used boat that has bin in salt water, not new aluminum. The slip can be entirely enclosed, or space can be left—as a 45-degree “V” or square end—in the fill-in for smaller watercraft docking. Pod width: 15-1/2" Made out of 0.100 inch thick 5052 marine grade aluminum Each small pod is 11 inches wide at the bottom. I need all the feedback I can get from you guys!!! Copy from a new boat that has VERY same layout as yours.----- If at all possible. I'm tempted to have a couple of flotation pods welded onto the back, but have reservations of how that affects handling, speed, and ride. This customer in Buford, GA purchased 4 blocks of 1 lb density EPS 6” x 24” x 72” and cut them to fit in the hull of his row boat. Johnson outboard). If I add styrofoam in the middle under the floor it will only add 300 lb of floatation. I've got a 20' aluminum with a 115 hp 4 stroke on the back that just makes it seem a bit back heavy. In the spring and early summer, we receive a volume of inquiries from folks with older boats wanting to install or replace foam for flotation. B = Buoyancy of flotation material in pounds per cubic foot. My only option is to use the spray in foam, it has the lining inside of the the cross bars and the floor is covered with the checked plate aluminum. Small – Fits 12 to 16ft boats with boat width 48" or less. NOTHING in the bottom 1/2. In most cases, the hull will stay afloat due to the presence of some floatation material in the forward bow section of the boat. Anyone have any good/bad experience with flotation pods added to the rear of an aluminum boat? I am replacing floors in 1973 16 foot aliminum starcraft (70 h.p. Flotation styrofoam for starcraft. Keep all the foam block or spray in place in the TOP HALF of hull. I shopped around at three different places and checked out what they had to offer. Boat weight in the water is 600 lb. I was wondering about how to prep a aluminum boat that was to be foamed to insulate/sound deaden/add floatation so as to not create the same problems the gas tanks in sea rays had? I am thoroughly pleased with my boat and Bobby and Lynn are really nice people. I am not being a smart as_. Floatation pods are common on aluminum boats if the owner plans to frequent shallow water. Right and wrong places. If one were to add enough flotation material to do the job, there could be a substantial loss of accommodation and storage space, perhaps even making the boat impractical to use. I was looking to get a 20 foot skiff built. I found one other place that had the same quality to offer but for $2,000 more for the same boat. There is no other room for styrofoam. So don’t trust me. I have a boat that does not have enough foam to suit me in case it gets swamped. 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