Type S Motor Surfboat
Self-bailing/non self-righting, 25ft. 10in. LOA, 7ft. 4in. beam, 2ft. 0in. draft, 3000lbs. displacement, single 20HP Kermath 4-cylinder/4-cycle gasoline engine with single propeller, maximum speed 8.5 statute MPH, 45nm. range, clinker built hull of cedar planks over oak frames, self-bailing scupper port and starboard, no sailing rig, three thwarts for a total of six oars rowed in double-banked configuration, no water ballast system, multiple air cases below watertight deck