The best flat bottom aluminum boat plans free download. our plans taken from past issues of our magazine include detailed instructions cut lists and illustrations – everything you need to help you build your next project… Flat bottom boat plans aluminum by jake several incidents of putting over 100 hp on a flat bottom 16-foot skiff station measurement can help in determining boat plans. below is the steps to quickly cut out sides. sheet #1 copies of the 14-foot guide and the original 16-foot brockway skiff plans are available from: susan weber. Welded aluminum boatbuilding the chine is the junction between the bottom and side on a v-bottom or flat bottom boat. on high-speed planing boats, this corner should be as crisp are possible, especially in the aft half of the hull. the reason is that water should break free from the hull to reduce frictional drag at speed, and not climb up the topsides. as shown before, fig. 1 includes.