<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px"><div id="yui_3_16_0_1_1497488281118_2683">Hi All,</div><div id="yui_3_16_0_1_1497488281118_2683">Got a problem to solve, my sub barge has a 30 hp outboard motor. When I try to cruise fast it cavitates real bad. When I push something that won't move like a dock, I can push at full throttle no problem. I am planning to build a landing craft 36 feet long using the steel hull from my paddle wheeler. I am building it to carry and launch Elementary. My concern is, because it is a displacement hull and it will be slow, will I have the same problem with cavitation that the barge has. Do I need to use a jet instead? I can't work on it for a year, but I want to source all the parts, engine, drive etc etc.</div><div id="yui_3_16_0_1_1497488281118_2683">Hank</div></div></body></html>