The journey begins...

The team

Archimede IV2007 resultsSubmarine pros/consPotential amelioration projectsFabrication of the submarine

-Hull design-Propeller and shroud design

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2008 amelioration projectsNew reinforced noseNew fin design & fabrication

Future ameliorationsNew hull designNew propeller system

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Project director : Jonathan BeaulieuPilot & Treasurer: David Ponton-

FournierComposites director& Treasurer: Alexis

PaymentElectronics director : Frédéric BergeronMechanics director : Alexandre BrièreFinance & Marketing director : Maxime

MaillouxFabrication director : Nicolas Bezeau-

Gervais4

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Affiliation École Polytechique de Montréal

Submarine Name Archimede IV

Category 1 person, propeller drivenAcademic Support  École Polytechique de Montréal

Length Overall 9‘3/8’’ (2.84m)Maximum Diameter 28"

Displacement 18 ft3 Weight in Air 115 lbs

Color White and Blue

Propulsion System Propeller

Team Leader Jonathan Beaulieu

Team MembersMaxime Mailloux, Frédéric Bergeron, Alexis Paiement,

Nicolas Bezeau-Gervais, Alexandre Brière, David Ponton-Fournier

Team Sponsors 

École Polytechnique de Montréal, La Boutique du plongeur, Laval Emballages Creopack International Inc., Montreal Gurit, Les Industries H.L. Plasto Ltée., SKF, CFP Lachine, Rodrigo

Garcia de EDPS Constellation

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Innovative gearbox design

Propeller designed 900 rpm is reachable

Lower drag coefficient with the use of a shroud

Less power loss due to turbulence

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Unefficient fin designFins were too fragile

and broke easily

Hull design verified using finite element methods. The hull not being symmetrical ameliorations are possible.

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Fin designSubmarine overall shapeSubmarine total frontal area due to previous pilot size (6’2” – 100 kg)

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The teamArchimede IV

2007 resultsSubmarine pros/consPotential amelioration projects

2008 amelioration projectsNew fin design/fabricationNew fin installation

Amelioration projects

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Stronger fins, less breakable

Bigger bonding area to the submarine

Longer fins on submarine total length positively affecting submarine stability because of the fixed front part

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Smaller directional fins to increase control and steering of the submarine

More efficient movement of the fin directly affecting submarine stability in water

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2007 nose was entirely fiberglass and very fragile

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2009 nose design has not changed

Nose failure in previous competitions encouraged us to reinforce it

Kevlar coated for 2009 which increases total mechanical resistance

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Hull made out of a layer of corecell between two layers of fiberglass

Hull counterpart made out of foam

Mold then made out of that counterpart

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Shroud made of fiberglass

Designed in accordance with the propeller and submarine

Gives better and more concentrated flow of water

Propeller – Designed by specialists (Nautican) Machined at École Polytechnique de Montréal

Optimized for 900 rpm in accordance to 1:8 gearbox ratio

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Gearbox made out of aluminium plates

Gears from Boston gears made of steel

Ratio of 1:8 connected to bicycled pedals with clips

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Pop-up buoy with deadman switch

Orange stickers clearly indicate release procedures

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New and improved hull designSymmetrical with

reduced drag

Increased gearbox ratio for maximum output speed

New bi-propeller system

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