Arneson Rocker Plates & Arneson Surface Drives. Arneson Surface Drives are available in ten different model sizes to accommodate different power levels. Arneson Industries manufactures and sells the finest products in performance boating. The Arneson @ Twin Disc Surface Drives are among the most efficient marine propulsion systems in the world. Their surface-piercing propeller design reduces underwater drag by 50% compared to conventional submerged propeller drive systems. The only surfaces to contact the water are propeller blades and a protective skeg. This results in higher overall speed, quicker acceleration, and a better payload to power ratio… AND… 50% less drag significantly improves fuel economy while lowering operating costs. Fontana, California

Copperhead MFG is the first mud motor company to design and engineer a true surface drive mud motor available in 6.5, 10 and 12 hp. Light weight and powerful for those who love to hunt and fish the shallow back waters. Covington, Louisiana

Sea Rider is a motorboat drive that can be defined as a stern group with surface propeller. Sea Rider currently covers a 50 to 4,000 bhp power range. The project includes a particular propeller design with a concave area in the back of the blade. Based in Italy

Q-Marine are suppliers of highest quality, highly efficient marine power and propulsion solutions. As distributors for some of the worlds leading marine power and propulsion brands, Q-Marine can offer performance enhancing products and solutions for most marine and motorhome applications. These brands including: Bruntons, Conquest, Q-SPD, Revolution Power, Redarc. Q-Marine are also the parent company for Q-SPD Surface Propulsion Solutions. Q-Marine design and manufacturer the high quality propulsion solution. Q-SPD systems offer propulsion solutions for the Pleasure, Commercial, and Military sectors. Auckland, New Zealand

The SDS Surface Drive System, specifically designed for planning hulls over 45 knots, was created in 1993 by M. Paul Bezzi, founder of FRANCE HELICES. The Surface Drive System SDS has been specifically designed to deliver exceptional performance to fast planing yachts, sport fishing boats, racing boats and professional applications where acceleration, high speed and endurance are a necessity such as ambulance, pilot boat, patrol boat, high-speed interceptor, RIB, search and rescue vessel, coast guard. Cannes, France