Aluvan is responsible for one of the most revolutionary designs to be used into the plate boat industry. with over 30 years in the marine industry and hours of careful design and rendering, designer terry allen developed the sponsitrak hull.. I was recently given an alumacraft 14' all weld boat, and am interested in putting sponsons on it. i put a 25 hp short shaft yamaha 4 stroke, and have a friend who is a machinist/fabricator that could build the sponsons if he knew dimensions, etc.. Years of testing dictate that for a high speed rigger type model boat hull, the best tuning situation for a sponson's top surfaces, is to have them neither angled upward or downward at the hulls maximum running speed & without any dihedral on the top surface..
My design/cat using angled sponson design with strakes my cat runs fast,stable and turns on a dime even in windy conditions and through wakes of other boats also to deep of steps in can cause issues with stability so its a fine line sometimes maiden run look how it turns,was windy and abit choppy aswell and running small prop. Laker 14 recreational tunnel boat plans construction notes. previous page-- index-- next page. laker 14 tunnel boat plans page four sponson stringers. most of the boat is straight and (relatively) stiff at this point. the exception is the sponson tips. these temporary braces take care of that.. The protector center console 25 is an open console design with a center steering position and a large, dry storage area below the console. the center console 25 model offers comfortable seating for 4-6 people and an optional canvas t-top..
