TEAM 6: JAWSS TEAM 6: JAWSS A Design Project Presentation Team 6 members: Louise McGowan Ken Millard Daniel Rice Kevin Pearce Joint-service Active Watch Surveillance Submersible “JAWSS HAS BITE”

OVERVIEW What is JAWSS? Features of the Design Testing, Trials & Tribulations Future Improvements Budget Closing Remarks Questions

What is JAWSS?

Current Sub JAWSS 2: Highly Visible Hull Sturdy Aluminum Frame Remote Operation Colour Video Four Thrusters Water Resistant

Comparison to Objectives CRITERIADESIREDACHEIVED Horizontal Speed1 knot~0.3 knot Vertical Speed0.1 knot~0.16 knot Turning Radius3ft DOF34 Depth10ft19ft Weight30 lbs13.8 lbs Visibility2ft>5ft Water IntegrityYes~Yes StabilityYes

Tow Tank Tests Water Integrity Buoyancy Drag More Water Integrity Camera Maneuverability Inspection

Tow Tank Results - Good Found True Drag Verified Required Ballast Controls and Camera Work Passed Inspection Leak Light Works!

Tow Tank Results - Bad Gaskets Thrusters End Cap Seal Tether Connectors Dome!

Tow Tank Solutions Modified Horizontal Thrusters Sealed End Cap and Thrusters Achieved Desired Buoyancy New Tether Connectors Replaced Dome – New Seal

HMCS ATHABASKAN Test

HMCS ATHABASKAN Results - Good Proved Test Depth of 10 ft Conducted Hull Inspection All Warning Lights Work Confirmed Visibility in Harbour Water

HMCS ATHABASKAN Results - Bad 19ft failure (2 x design) Water on the inside Team 6 mourns their loss

HMCS ATHABASKAN Solutions JAWSS 2: Externally Mounted Thrusters Epoxyed Previous Mounting Holes Cleaned Electronics

DalPlex Test

DalPlex Results - Good It’s Alive!!! Proved Concept Ease of Use Maneuverability Tests Speed Tests

DalPlex Results - Bad Still Small Leak – Bad Data Plug Thrusters Not Enclosed Tether Impedes Motion

Lessons Learned DOME: Machining acrylic creates micro- fractures  purchase a dome that requires no machining/modification. PACKAGING: Some packaging does not clearly indicated all properties of a marine sealant  find larger contained and read all warnings.

Lessons Learned SHIPPING: Just because you pay for overnight delivery does not mean you’ll get overnight delivery  Use pack mules. SEALS: Using machine bolts in PVC does not allow enough force to compress gasket  Use alternative seals

If We Had to Do It Again… Next generation electronics External thrusters Improved seals Hull clamped to frame Neutrally buoyant tether Bigger motors

BUDGET TOTAL COST ActionTotal Main Hull Construction Thrust Unit Construction (4) Controls & Imaging System Construction Circuit Boards Power and Tether Construction Protective Cage Construction Power and Tether Construction Connectors, Fittings, Wire Excess Material Purchase Additional Supplies Admin/Logistics Costs Tax TOTAL TOTAL RECOVERY ActionTotal Financial Donation (Dalhousie) Borrowed Equipment DIGI-Key Donation AP Circuits Donation Member Contributions TOTAL

BUDGET TOTAL COST ActionTotal Main Hull Construction Thrust Unit Construction (4) Controls & Imaging System Construction Circuit Boards Power and Tether Construction Protective Cage Construction Tax TOTAL

The Last Word Many setbacks Learned a lot Low cost submersible achieved Use O-rings to seal data plug leakage It’s never too late to try again:  JAWSS 1 = 6 months  JAWSS 2 = 36 hrs

BIG THANKS TO ALL  Sponsors: Alberta Printed Circuits Delphinus Marine Technologies Ancaster, ON, Canada DRDC Atlantic HMCS ATHABASKAN

BIG THANKS TO ALL  Techs:  Angus Macpherson,  Greg Jollimore,  Albert Murphy  Profs:  Anastasis Vyron Georgiades  Mae Seto  Ted Hubbard  Others:  Winston Churchill: “ Never, never, never, never give up. ”

¿Questions ? JAWSS 3 Shark Fishing