SURFACE DRIVES THE MOST EFFICIENT MARINE PROPULSION SYSTEMS IN THE WORLD BUILT FOR PERFORMANCE 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. For work, pleasure, gas, diesel, or turbine power systems capable of torque outputs exceeding 30,000 ft. pounds, the Arneson @ Twin Disc Surface Drives come in ten model sizes and various configurations for each model. Available in, Aluminum or bronze castings, straight or drop-center models, 12 or 24 volt compatible systems, plus the new Arneson Dual-Fin surface drives available in the #8 and AI10 models. ADVANTAGES 15% to 30% speed increase over conventional systems. 15% to 30% increase in fuel efficiency. More efficient than I/O’s Corrosion resistant Size adaptability, from 100 hp to over 10,000 hp applications. Low maintenance requirements. Ability to adjust propeller submergence while underway. Ability to adjust submergence to match horsepower output permits conversion of more thrust as appropriately needed. Propellers ventilate to the surface rather than cavitate under the hull reducing noise and destructive hull and prop erosion. Flexibility in engine installation location. Less Vibration than Inboard or I/O applications Shallow water operation (elimination of underwater appendages). Accessible propeller servicing. Steerage by the positive thrust of the propeller and not by the propeller thrust to the rudder. This is equivalent to sports car rack-and-pinion steering performance. For all it’s sophisticated performance, it is a less mechanically complex and fragile design than other propulsion systems. Most models are available in Magnesium Bronze or Aluminum. No limitations to shaft angle, blade top clearance, draft to restrict selection of optimum diameter propeller. Adaptable to a wide range of engine applications, whether gas, diesel, or turbine. FEATURES AI is not affiliated with and is not an authorized Twin Disc distributor or service dealer. PRODUCTS Surface Drives Bravo Conversion Turbine Engines Performance Upgrades HELPFUL LINKS Performance Upgrades Drive Rating Chart Drive Identification TECHNICAL SPECIFICATIONS #6 Technical Spec’s #7M Kit Technical Spec’s #7M Technical Spec’s #8 Technical Spec’s #8-6 Technical Spec’s #8-10 Technical Spec’s #10 Technical Spec’s #11 Technical Spec’s #12 Technical Spec’s #14 Technical Spec’s #15 Technical Spec’s #16 Technical Spec’s © ARNESON INDUSTRIES, ALL RIGHTS RESERVED DISCLAIMER

CONTACT US WE WOULD LOVE TO HEAR FROM YOU Name * E-mail address * Your message * SEND MESSAGE PHONE & FAX Tel. (415)-485-0788 Fax. (415)-485-1293 SHIPPING ADDRESS Arneson Industries LLC 13052-B Dahlia St. Fontana, CA 92337 © ARNESON INDUSTRIES, ALL RIGHTS RESERVED DISCLAIMER