2. Brief history Archimede VI Past events Budget 2012 - 2013 Team members & competition crews Design Hydrodynamic Fins Mechanical Conclusion & Questions International Submarine Races # 12 – Team Archimede 2/20 Presentation overview

3. Founded in 2001 Category EventsMax speed Archimede I2 people propHPS 2002 2.9 knots Archimede II2 people propISR 2003, HPS 2004 n/a Archimede III2 people propISR 2005 5.225 knots Archimede IV1 person propHPS 2006, ISR 2007, 20096.473 knots Archimede V1 person propISR 2011, EISR 20126.298 knots International Submarine Races # 12 – Team Archimede 3/20 Brief history Archimede VI1 person propISR 2013? ? ?

4. International Submarine Races # 12 – Team Archimede 4/20 Archimede VI (1/3)

5. Main innovations New infusion-composite hull Smaller, less surface/friction drags, faster Polycarbonate window Polyurethane fins by liquid plastic molding Sonar Higher construction efficiency Low cost processes Investments in tools Looking for speed ! International Submarine Races # 12 – Team Archimede 5/20 Archimede VI (2/3)

6. International Submarine Races # 12 – Team Archimede 6/20 Archimede VI (3/3) General Overall Length131,5 in / 3340 mm Hull max diameter28,5 / 723 mm Inside Volume20,34 ft 3 / 0,576 m 3 Dry weight (including air tank)200 lbs / 90,72 kg Propulsion TechnologySingle-propeller Propeller optimal speed950 rpm Number of blades2 Performance Design speed7,1 kts / 3,65 m/s Fins Profile ReferenceNACA0010 Number of fins4 Reference Area75,95 in² / 0,049 m² Gearbox Design Cadence80 rpm Maximum Speed ratio13 Steering systemMechanical

7. 2 co-events VP Communication New & updated website (www.polyarchimede.com) Use of social media (facebook) Past events since ISR 2011 Montreal Polytechnique visibility and recruiting activities Montreal Eureka 2012 & 2013 science festival Montreal Classic Boat Festival 2012 European International Submarine Races in Gosport, UK (with Archimede V) International Submarine Races # 12 – Team Archimede 7/20 Past events

8. Total budget : $ 16,000 International Submarine Races # 12 – Team Archimede 8/20 Budget 2012 - 2013 Travelling expenses : $ 6,000 Scuba diving equipment : $ 5,000 Power tools : $ 2,000 Submarine materials : $ 3,000

9. Archimede members International Submarine Races # 12 – Team Archimede 9/20 Team members & competition crews Competition crews Dry crew Preparation Divers assistance Reparations Sub towing Wet crew Dive leader Pilot “Balancers” Communication with dive & race supervisors

10. Hull - Hydrodynamic design Optimisation from Archimede V Based on NACA profile Enough volume for systems Minimum frontal and hull areas Smaller cross section Reduced chord line by accentuating the profile curvature after transmission Successive Ansys Fluent analysis Propeller, shroud and pre-swirl stators Same from Archimede V Better fixation to hull for changes & repairs International Submarine Races # 12 – Team Archimede 10/20 Design – Hydrodynamic (1/3) Length3302 mm / 130 in Height723 mm / 28,5 in

11. International Submarine Races # 12 – Team Archimede 11/20 Design – Hydrodynamic (2/3) Hull – Sandwich composite construction Wax finish 2 x paint 2 x primer Putty surface corrections 1 mat fiberglass fabric 1 bidirectional fiberglass fabric 1 mat fiberglass fabric Corecell with epoxy resin, light weighted 2 coats of mat fiberglass fabric Epoxy resin paste with glass microspheres 2 x primer OUTSIDE LAYERS INSIDE LAYERS

12. Hull – Composition Sandwich composite : increased bending strength Corecell A-foam (closed-cell nautical foam) for buoyancy Additional materials to the hull Polycarbonate for the window Plastic, steel and polyurethane for the fins Steel, corecell and epoxy fitting for the rear shaft Polycarbonate “pucks” for crewing fixation Hull – fabrication Counter-mold (plug) Mold 2 x infusion hull halves with vacuum Assembly of the halves with 2 additional vacuum infusions International Submarine Races # 12 – Team Archimede 12/20 Design – Hydrodynamic (3/3)

13. Fins – design Removable 2 sets of fins A – Control designed B – Speed designed International Submarine Races # 12 – Team Archimede 13/20 Design – Fins (1/2)

14. Fins – fabrication Model -> Silicone rubber mold -> Polyurethane parts Stronger top fin vs 3 other fins (less fragile) 2-3 hours to get a new fin from scratch ! Huge advantages over “traditional” composite fins Faster Cheaper Higher surface quality International Submarine Races # 12 – Team Archimede 14/20 Design – Fins (2/2)

15. Direction One hand pilot control Bike cables tightly linked to the fins Better precision Remember Archimede 5… loosely cables on big pulleys ! Referencing system – during construction Laser Precise positions of inner systems Referencing system – in competition Visual control through 360 window Sonar aid International Submarine Races # 12 – Team Archimede 15/20 Design – Mechanical (1/2)

16. Drivetrain Removable cassette New cassette holder New first stage shaft Same ratio as Archimede V Pop-up buoy and propeller nozzle International Submarine Races # 12 – Team Archimede 16/20 Design – Mechanical (2/2)

17. International Submarine Races # 12 – Team Archimede 17/20 Design – Mechanical (2/2)

18. We had some issues: International Submarine Races # 12 – Team Archimede 18/20 Conclusion Sorry for the presentation delay yesterday… Pilot not coming due to medical surgery Dive master burn out VP-logistic cancelled 10 min before departure 2 other members cancellation in the past two weeks Team leader in civil engineering! And last but not least…

19. So… International Submarine Races # 12 – Team Archimede 19/20 Conclusion We continued our work on evenings at the hotel in order to finish the submarine !

20. Any questions ?