Plan database information new plans search / categories top 50 random. go back model airplane plan details. slowboat. by scott swanson. video: ad.. A resource for the model boat builder and rc power boat model builder. free plans to build rc power boats with information on racing. My 38" foam floats will never crack & leak weigh only 1lb 4oz covered in fiberglass and epoxy! less if you use covering. most 40 size planes only need 34" floats, do.