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Sail Away

Sail Away. Crew: Mike Lanteigne Wallace Barkhouse Scott Donahoe Blair MacKay Captain: Dr. Jimmy Chuang. Final Presentation. April 4 th 2012. 2. Outline. Criteria and Constraints Changes to Preliminary Design Building/Challenges Final Design Testing Performance Improvements.

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Sail Away

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  1. Sail Away Crew: Mike Lanteigne Wallace Barkhouse Scott Donahoe Blair MacKay Captain: Dr. Jimmy Chuang Final Presentation April 4th 2012

  2. 2 Outline • Criteria and Constraints • Changes to Preliminary Design • Building/Challenges • Final Design • Testing • Performance • Improvements

  3. 3 Criteria and Constraints

  4. 4 Preliminary Design • Aluminum Components • Mounting Mast Bracket • Internally Mounted Keel • Rear Mounted Rudder • Curved Sail • Pontoon System

  5. 5 Design Changes

  6. 6 Mast Bracket Preliminary Design Final Design 10 in 10 in 15 in • Enlarged mast plate • Incorporates forward pontoon support tubing • Angle aluminum welded directly to plate

  7. 7 Pontoon Supports Preliminary Design Final Design 10 feet • Straight lengths of box tubing used • Run through larger box tubing sections mounted on kayak • Entire assembly can be pinned together

  8. 8 Pontoons Final Design • The pontoon design did not change • Pontoons are six feet long • Box tubing fiber glassed into pontoons • Fits together with pins 6 feet

  9. 9 Keel Preliminary Design Final Design • Bolts directly to existing mounts • No chance of leaks • Does not impede users legs

  10. 10 Rudder Final Design Preliminary Design Top View To Foot Pedals Side View • Hands free operation • Uses existing hardware for mounting • Good range of motion • Can be raised and lowered

  11. 11 Sail Design Previous Design Final Design • No boom 50 inches • More sail control • Made from abs plastic, lightweight and strong • Well above the operators head for safe operation • Is easily removable from mast.

  12. 12 Final Design • Hinging mast bracket • Box tubing supports • Side mounted keel • Oversized pontoons • Removable boom • Rear mounted rudder

  13. 13 Building Outline

  14. 14 Level • Structural Putty • Wood Core • Molds Sea Kayak • 16 feet long • Handle modifications Pins Rear Support Plate Front Mast Plate 16 feet

  15. 15 Mast Bracket Mast Bracket • Welded by tech • Finished by group Lowering Raised Pivot Pin Remove Pin Front Mast Plate Rear Support Plate

  16. 16 Supports • 1o foot box tubing • Pin holes at ends and middle Rudder Keel Pin Holes

  17. 17 Keel and Rudder Rudder • Aluminum assembly • Pin holes at ends and middle Keel • Plywood construction • Fiber glassed for water proofing ` Pivot Point for Steering Pivot Point for low water

  18. 18 Collar Sail • Custom made • 4 x 8 feet Boom • ABS pipe • Friction fits PVC “T”

  19. 19 Pontoons Pontoons • Foam core • 3 layers matting • Attachments fiber glassed into pontoons

  20. 20 Final Design Final Design Challenges • Leveling kayak hull • Fiber glassing pontoons

  21. 21 Testing Outline

  22. 22 Assembly Test 1min 2min 3 min 4 min 5 min Time Elapsed:

  23. 23 Raising / Lowering Mast

  24. 24 Wave Test Wave Direction: Avg. Wave Height = 0.75 m

  25. 25 Wind Test Wind Direction: • Design must operate in 20 knot winds • Design competently handled 12 knot winds • Team is confident that vessel could handle 20+ knot wind speeds

  26. 26 Buoyancy Test

  27. 27 Performance Max Wind Speed = 12 knots Max Vessel Speed = 5.2 knots

  28. 28 Performance

  29. 29 Improvements • Lighter material and construction for pontoons • Increase spacing between pontoon supports • Design hull to accommodate mast

  30. 30 Conclusions • Design worked as expected • Building was a challenge • Design could be improved • Mass added = 105 lbs • Increase in draft = 1.4”

  31. 31 Budget

  32. 32 Thanks • Shell • Fiberglass Marine Supply • Halifax Yacht Shop • Dr. Jimmy Chuang • Rob Warner • Dr. Julio Militzer • Technicians Albert, Mark and Angus • Albert’s friend Bill for helping with testing and safety

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