CIRCUMNAVIGATION PROPOSAL

 

  THE SOLAR POWERED AUTONOMOUS ENDURANCE WATER SPEED RECORD AROUND THE WORLD

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Early development model 1:200 scale illustrating the vast solar array, as compared to the Swann's small frontal area, making her an ocean greyhound.

 

 

Once a record is set across the English Channel, backed up by the proposed experiments across the Atlantic from Las Palmas, Gran Canaria, Spain, to Marigot, St Martin, in the French West Indies (to compare with PlanetSolar) using the trades (easterlies), and return runs from the US east coast (New York) to Ireland, using the westerlies. A circumnavigation may be seen by many as just a technicality - except perhaps for the east coast of Africa along Somali to the Gulf of Aden - in the Indian Ocean. This being a difficult leg.

 

When planning the route for a solar/wind powered vessel, it helps to understand the convection currents and coriolis effect from the earth's rotation, without dwelling on this for too long. We must just accept the geographical seacape and play by these rules.

 

 

 

 

Thus, for the sake of completeness, we have included a world itinerary as the final gloss to add an international flavour - anticipating that the yachting world may demand closure. The problem with mounting such a journey is more likely to be funding, followed by crewing, rather than the ability of the Elizabeth Swann to complete such a journey in record time, as the table below indicates.

 

Such a challenge may not be supported by research grants, the experiments having been concluded in the earlier development phases. Funding may only be achieved via philanthropic contribution and/or corporate partnerships. Crowdfunding is not an option at this level.

  

 

 

LEG

NAUTICAL MILES

TIME IN PORT

WAYPOINT

SUNSHINE DAYS

-

-

-

-

-

START

-

-

Monaco

0.00

1

784

2

Gibraltar

4.67

2

729

2

Tenerife, Canary Islands

4.34

3

3,154

2

Trinidad, Port of Spain

18.77

4

1,182

2

Panama City

7.04

5

970

2

Galapagos

5.77

6

3,640

2

Tahiti

21.67

7

1,423

2

Tonga, Nukualofa

8.47

8

410

2

Fiji, Suva

2.44

9

1,886

2

Port Moresby PNG

11.23

10

340

2

Thursday Island, Cape York

2.02

11

724

2

Darwin

4.31

12

1,572

2

Jakarta, Indonesia

9.36

13

1,881

2

Colombo, Sri Lanka

11.20

14

2,109

2

Aden, Yemen

12.55

15

698

2

Jeddah, Saudi Arabia

4.15

16

670

2

Port Said, Egypt

3.99

17

1,111

2

Palermo, Sicily

6.61

18

170

2

Naples, Italy

1.01

19

393

FINISH

Monaco

2.34

-

-

-

-

-

-

23,846

36

RUNTIME DAYS @ 7kts

141.94

-

-

-

-

-

+ 10% service

= 156.13 Days

-

7 KNOTS AVE INC PORT & %

192.13

-& maintenance

-

-

AT 6 KNOTS AVE

224.16

 -

-

-

AT 5 KNOTS AVE

268.99

 

TRANSIT EXAMPLES - The above table illustrates one of the most likely ocean awareness expedition routes that could be undertaken by the Elizabeth Swan, showing the time elapsed in days for 7 knots average cruising speed, including times for 5 and 6 knot averages - allowing for 10% downtime and 36 days in ports. Hence, although the objective is to reduce the current solar circumnavigation record from 584 days, the event in not an outright non-stop yacht competition in the offshore racing sense. It remains to be seen how accurate such a prediction might be.

 

The Elizabeth Swann is capable of speeds above 15 knots in the right conditions.

 

The Clean Queen of the Seas, Elizabeth Swann

 

CAD DIAGRAM: The Elizabeth Swann is shown here with a wave piercing hull. She is of trimaran configuration with active outrigger hulls (or sponsons) that allow the vessel to trim for very efficient running. She has solar wings that fold for storms and track the sun, and a wind turbine on a mast, that can be raised and lowered and furled in high winds. For a record attempt we need a sunny day and high winds.

 

With only one moving part per electric drive, the system is only requires the maintenance of the wind turbine and solar tracking hydraulics. Compared to any conventional fossil fuel powered motor, we don't need to worry about servicing of engines or dirty oils, or fuel costs, resulting in a substantial amount of money saved every year.

The total cost of ownership of such solar electric boats is approximately 30% of what a conventionally powered vessel costs over the years for operational costs (fuel), maintenance costs (consumables, service parts, etc.) and rebuild costs (investment for new engine after several hours of operation).

   

 

 

    

 

PIONEERS - Wilbur and Orville Wright proved all the skeptics wrong with their Flyer I in 1903, with stunning originality. Louis Bleriot crossed the channel in 1909 from Calais to Dover the basics of aerodynamics having been established. Charles Lindbergh completed the first non-stop flight across the Atlantic in 1927 by fitting huge fuel tanks to extend range, Charles Kingsford-Smith flew across the Pacific in 1928, and Amy Johnson completed her solo flight, London to Darwin in 1930 - True Grit! More than ever we need innovation and adventurers like these in the fight against climate warming.

 

 

 

 

 

 

 

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