1. University of Bath - Sulis

2. Design Concept Hull Transmission Propulsion – Propeller Propulsion – Non Propeller Safety Control Ergonomics Buoyancy Introduction

3. Dual propulsion Evolution from Seabomb Advantages: Reduced friction Improved visibility Stroke length increased Reduced inertial losses Disadvantages: Increased complexity Increased cost Design Concept

4. Hull Revolved NACA 0012

5. Dual output Double scotch yoke Transmission Bevel Gearbox Chain between gearbox and Scotch Yoke Aerofoil support rails Scotch yoke sprocket Bicycle pedals and chain drive Linear Bearings

6. Propulsion - Propeller Design point of 5.0knts Speed estimated with different propellers Probable 4.5knts maximum speed Final propeller provided by Duncan Propellers Ltd. [Picture of propeller]

7. Propulsion – Non Propeller Variable passive pitch limiter Vary fin flexibility Vary aspect ratio

8. Safety Safety buoy Escape hatch Strobe Viewports Antibiomimetic colour scheme

9. Control Foreplanes – evolution from Seabomb

10. Ergonomics Test rig CAD model

11. Buoyancy Removal of variable buoyancy Closed cell high density styrofoam

12. Questions Thanks very much for listening, any questions?