Find best value and selection for your tri hull boat and trailer search on ebay. world's leading marketplace.. These boat trailer plans cover the latest in axles, wheels, hubs, brakes, suspension systems, tires, couplers, welded steel frame details, hull support systems, jackstands, and more! all parts and materials specified are standard items readily available anywhere.. For sale is a 19 glencoe tri hull jet boat and a 21 dual axle trailer boat is complete and in solid shape. also has extra parts . the jet is good but engine needs to be replaced the trailer has been refurbished including new rollers and has permanent tag good till 2020..
Re: tri hull trailer it looks like the front keel rollers are more for centering the boat up front. they form a "v" to hold the keel from deflecting side to side as the boat comes up on the trailer.. T hese boat trailer plans cover the latest in axles, wheels, hubs, brakes, suspension systems, tires, couplers, welded steel frame details, hull support systems, jackstands, and more! all parts and materials specified are standard items readily available anywhere.. Tunnel hull/catamaran the proper way to haul a tunnel hull or catamaran boat is on a custom-built bunk style trailer that supports the craft’s unique configuration. our trailers offer the proper bunking system, which typically includes center supports down the middle of the frame, as well as outer bunking under the sponsons..