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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

Sail Away

Crew:

Mike Lanteigne

Wallace Barkhouse

Scott Donahoe

Blair MacKay

Captain:

Dr. Jimmy Chuang

Final Presentation

April 4th 2012

outline

2

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

4

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

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
pontoon supports

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
pontoons

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

slide9

9

Keel

Preliminary Design

Final Design

  • Bolts directly to existing mounts
  • No chance of leaks
  • Does not impede users legs
rudder

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
sail design

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.
final design

12

Final Design
  • Hinging mast bracket
  • Box tubing supports
  • Side mounted keel
  • Oversized pontoons
  • Removable boom
  • Rear mounted rudder
slide14

14

Level

  • Structural Putty
  • Wood Core
  • Molds

Sea Kayak

  • 16 feet long
  • Handle modifications

Pins

Rear Support Plate

Front Mast Plate

16 feet

mast bracket1

15

Mast Bracket

Mast Bracket

  • Welded by tech
  • Finished by group

Lowering

Raised

Pivot Pin

Remove Pin

Front Mast Plate

Rear Support Plate

slide16

16

Supports

  • 1o foot box tubing
  • Pin holes at ends and middle

Rudder

Keel

Pin Holes

keel and rudder

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

slide18

18

Collar

Sail

  • Custom made
  • 4 x 8 feet

Boom

  • ABS pipe
  • Friction fits

PVC “T”

pontoons1

19

Pontoons

Pontoons

  • Foam core
  • 3 layers matting
  • Attachments fiber glassed into pontoons
final design1

20

Final Design

Final Design

Challenges

  • Leveling kayak hull
  • Fiber glassing pontoons
assembly test

22

Assembly Test

1min

2min

3 min

4 min

5 min

Time Elapsed:

wave test

24

Wave Test

Wave Direction:

Avg. Wave Height = 0.75 m

wind test

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
performance

27

Performance

Max Wind Speed = 12 knots

Max Vessel Speed = 5.2 knots

improvements

29

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

30

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

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