Sonar (keelboat)

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Sonar
Sonar red.svg
Sonar (keelboat).svg
Development
DesignerBruce Kirby
LocationCanada United States
Year1980
No. built860
Builder(s)Seidelmann Yachts
Ontario Yachts
C. E. Ryder
Rondar Raceboats
DS Yachts
Shumway Marine
Boat
Boat weight2,100 lb (953 kg)
Draft3.92 ft (1.19 m)
Hull
Typemonohull
Constructionfibreglass
LOA23.00 ft (7.01 m)
LWL19.92 ft (6.07 m)
Beam7.83 ft (2.39 m)
Hull appendages
Keel/board typefin keel
Ballast930 lb (422 kg)
Rudder(s)internally-mounted spade-type rudder
Rig
Rig typeBermuda rig
I foretriangle height25.00 ft (7.62 m)
J foretriangle base8.90 ft (2.71 m)
P mainsail luff27.50 ft (8.38 m)
E mainsail foot11.20 ft (3.41 m)
Sails
Sailplanfractional rigged sloop
Mainsail area154.00 sq ft (14.307 m2)
Jib/genoa area111.25 sq ft (10.335 m2)
Total sail area265.25 sq ft (24.643 m2)
Racing
D-PN82.5
Paralympics class

The Sonar is a one design trailerable racing sailboat that was designed by Canadian naval architect Bruce Kirby and first built in 1980.[1][2][3]

The design was initiated as a commission from the members of the Noroton Yacht Club of Darien, Connecticut, United States.[1]

The Sonar was inducted into the American Sailboat Hall of Fame in 2004.[4]

The design was developed into the more cruising-oriented Blazer 23, using the same hull, but a larger cabin.[5]

Production[edit]

The design was first built by Seidelmann Yachts in Berlin, New Jersey, although the company went out of business in 1986. Other companies that have previously produced the boat include C. E. Ryder and Shumway Marine in the US, as well as Ontario Yachts and DS Yachts in Canada, with a few built by Carbon Index in the United Kingdom. Since 2015 the boat has been built by Rondar Raceboats in the UK and distributed in North America by Shumway Marine. A total of 860 boats have been built.[1][3][6][7][8][9]

Design[edit]

Sonar

The Sonar is a recreational keelboat, built predominantly of fibreglass, with wood trim. It has a fractional sloop rig with aluminum spars, including a tapered boom, a raked stem, a reverse transom, an internally mounted spade-type rudder controlled by a tiller with an extension and a fixed fin keel. It displaces 2,100 lb (953 kg) and carries 930 lb (422 kg) of lead ballast.[1][3]

The boat has a draft of 3.92 ft (1.19 m) with the standard keel.[1]

The design has a cockpit 11.50 ft (3.51 m) long, with space for eight people. It has a small cuddy cabin that is used for stowage and can also house a portable head. The cuddy can also be fitted with two berths for sleeping accommodation.[3][8]

The boat can plane downwind. For sailing the design is equipped with internal boom slab reefing, a 4;1 mechanical advantage mainsheet block, a backstay and a boom vang. Hiking is not permitted under the class sailing rules.[3][8]

The design has a Portsmouth Yardstick DP-N racing average handicap of 82.5 and is normally raced with a crew of two to three sailors.[3]

Operational history[edit]

Sonar showing cockpit size
Sonar on its road trailer showing the keel and rudder shape

The Sonar is used for sail training as well as racing.[7]

The Sonar is an accepted World Sailing international class and was selected for Paralympic sailing at the 1996 Paralympic Games and has remained a Paralympic class since then.[7][10]

The boat is supported by an active class club that organizes racing events, the Sonar Class Association.[11]

In a 1994 review Richard Sherwood wrote, "the Sonar was designed for the same market as the Etchells 22, Soling, Tempest, and Ensign. The basic concept was generated by a committee of the Noroton Yacht Club (Connecticut), then designed by Bruce Kirby. The cockpit is huge ... Only three sails are allowed — main, jib, and spinnaker."[3]

The boat was inducted into the American Sailboat Hall of Fame in 2004. The citation noted, "the brainchild of Bruce Kirby (who also designed the Laser, which was inducted into the American Sailboat Hall of Fame in 1997), the Sonar was designed to a specific set of parameters determined through a survey of club sailors. All were looking for the same thing—a boat that was exciting to race, easy to handle by sailors of varying ages and abilities, trailerable, self-bailing and reasonably comfortable. Basically, Kirby said, "we wanted a boat that could be sailed without breaking your neck." "I think it’s the best boat I ever designed in that it met all the criteria," Kirby said."[4]

Events[edit]

Open Worlds Championships[edit]

Year
Gold Silver Bronze
2001  United States
Noroton, CT
37 Boats [12][13]
 Mark Ploch (USA)

 Paul Beaudin (USA)
 Tac Boston (USA)
 Mark Weber (USA)

 Craig Sinclair (USA)  Steve Shepstone (USA)
2004  United States
St. Petersburg, FL
25 Boats[14][15]
 Steve Shepstone (USA)

 Melissa Shepstone (USA)
 Thomas Kinney (USA)
 Michael Loeb (USA)

 Peter Galloway (USA)  John Ross-Duggan (USA)
2005  Great Britain
Cowes, UK[16][17]
 Steve Shepstone (USA)  Paul Bowen (GBR)  Peter Galloway (USA)
2007  United States
Marblehead, MA[18]
 Bill Lynn (USA)

 Chris HufStader (USA)
 Ed Keller (USA)
 Doug Sabin (USA)

 Greg Anthony (USA)  Rick Dominique (USA)
2009  United States
Noroton, CT[19]
 Dave Franzel (USA)
 Todd Cooper (USA)
 Greg Anthony (USA)
 Conor Hayes (USA)
 Jud Smith (USA)  Karl Ziegler (USA)
2011  Great Britain
Rhu, Scotland[20]
 Steve Shepstone (USA)9381  Simon Barter (GBR)  Scott McLeod (USA)
2013  United States
Rochester, NY[21][22]
 Eric Voss (USA)

 Kurt Voss (USA)
 Terry Shannon (USA)
 Jud Smith (USA)

 Colin Gordon (USA)  Peter Galloway (USA)
2015  United States
Falmouth, MA
27 Boats[23][24]
 Karl Ziegler (USA)  Dave Franzel (USA)  Bella Rena (CAN)
2017  United States
Lunenburg, NS
25 Boats[25][26]
 Peter Galloway (USA)  Karl Ziegler (USA)  Eric Voss (USA)[27]
2019  United States
Rochester, NY[28][29]
 Michael Wilde (USA)  Brian Doyle (USA)  Eric Voss (USA)[30]

Disabled World Championships[edit]

The Sonar has also been used extensively for disabled sailing. The boat specifications are exactly the same for open and disabled sailing events, but additional adaptations are allowed to be fitted to the boat to aid the crew who are not permitted to hike or use a spinnaker. The World Championships is recognised by World Sailing.

Year
Gold Silver Bronze
Sonar Para World Championship medallists
1999 Cadiz[31]  Germany
Jens Kroker[citation needed]
Peter Muenter[citation needed]
Peter Reichl[citation needed]
 Great Britain
Andy Cassell[citation needed]
Andrew Millband[citation needed]
Brian Harding[citation needed]
 Netherlands
Udo Hessels[citation needed]
Marcel van de Veen[citation needed]
Mischa Rossen[citation needed]
2001 Florida[32]  Canada
Brian Mackie[citation needed]
Brian MacDonald[citation needed]
Paul Tingley[citation needed]
 Great Britain
Andrew Cassell[citation needed]
Brian Harding[citation needed]
Edward Suckling[citation needed]
 Germany
Jens Kroker[citation needed]
Dietmar Steigel[citation needed]
Peter Reichl[citation needed]
2002 Medemblik[33]  Germany
Jens Kroker[citation needed]
Dietmar Steigel[citation needed]
Peter Reichl[citation needed]
 Great Britain
Andrew Cassell[citation needed]
Brian Harding[citation needed]
Edward Suckling[citation needed]
 Canada
Brian Mackie[citation needed]
Brian MacDonald[citation needed]
Paul Tingley[citation needed]
2003 Athens[34]  Netherlands
Udo Hessels[citation needed]
Marcel van de Veen[citation needed]
Mischa Rossen[citation needed]
 Israel
Dror Cohen[citation needed]
Benny Vaxler[citation needed]
Michael Levy[citation needed]
 Great Britain
John Robertson[citation needed]
Stephen Thomas[citation needed]
Hannah Stodel[citation needed]
2005 Sonderborg[35]  Great Britain
John Robertson[citation needed]
Stephen Thomas[citation needed]
Hannah Stodel[citation needed]
 Norway
Jostein Stordahl[citation needed]
Aleksander Wang-Hansen[citation needed]
Per Eugen Kristiansen[citation needed]
 Germany
Jens Kroker[citation needed]
Holger Schonenberg[citation needed]
Tobias Schuetz[citation needed]
2006 Perth[36][37]  Great Britain
John Robertson[citation needed]
Stephen Thomas[citation needed]
Hannah Stodel[citation needed]
 Germany
Jens Kroker[citation needed]
Sigi Mainka[citation needed]
Tobias Schuetz[citation needed]
 Norway
Jostein Stordahl[citation needed]
Aleksander Wang-Hansen[citation needed]
Per Eugen Kristiansen[citation needed]
2007 Rochester, NY[citation needed][38]  United States
Rick Doerr[citation needed]
Tim Angle[citation needed]
Bill Donahue[citation needed]
 United States
Paul Callahan[citation needed]
Tom Brown[citation needed]
Roger Cleworth[citation needed]
 Germany
Jens Kroker[citation needed]
Tobias Schuetz[citation needed]
Sigi Mainka[citation needed]
2009 Athens[39][40][41]  Germany
Jens Kroker[citation needed]
Robert Prem[citation needed]
Siggy Mainka[citation needed]
 Israel
Dror Cohen[citation needed]
Arnon Efrati[citation needed]
Ben Vexler[citation needed]
 Greece
Christoforou Vasilis[citation needed]
Notaroglou Argiris[citation needed]
Aleksas Thodoris[citation needed]
2010 Medemblik[42][43]  Netherlands
Udo Hessels[citation needed]
Marcel van de Veen[citation needed]
Mischa Rossen[citation needed]
 Great Britain
John Robertson[citation needed]
Hannah Stodel[citation needed]
Stephen Thomas[citation needed]
 Germany
Jens Kroker[citation needed]
Robert Prem[citation needed]
Siegmund Mainka[citation needed]
2011 Weymouth[44][45]  Israel
Dror Cohen[citation needed]
Benni Vexler[citation needed]
Arnon Efrati[citation needed]
 Great Britain
John Robertson[citation needed]
Hannah Stodel[citation needed]
Stephen Thomas[citation needed]
 Norway
Aleksander Wang-Hansen[citation needed]
Per Eugen Kristiansen[citation needed]
Marie Solberg[citation needed]
2012 Charlotte Harbor[46][47]  Norway
Aleksander Wang-Hansen[citation needed]
Per Eugen Kristiansen[citation needed]
Marie Solberg[citation needed]
 France
Bruno Jourdren[citation needed]
Eric Flageul[citation needed]
Nicolas Vimont-Vicary[citation needed]
 Great Britain
John Robertson[citation needed]
Hannah Stodel[citation needed]
Stephen Thomas[citation needed]
2013 Kinsale[48][49]  France
Bruno Jourdren[citation needed]
Eric Flageul[citation needed]
Nicolas Vimont-Vicary[citation needed]
 Netherlands
Udo Hessels[citation needed]
Marcel van de Veen[citation needed]
Mischa Rossen[citation needed]
 Australia
Colin Harrison[citation needed]
Jonathan Harris[citation needed]
Russell Boaden[citation needed]
2014 Halifax[50]  France
Bruno Jourdren[citation needed]
Eric Flageul[citation needed]
Nicolas Vimont-Vicary[citation needed]
 Canada
Paul Tingley[citation needed]
Logan Campbell[citation needed]
Scott Lutes[citation needed]
 Australia
Colin Harrison[citation needed]
Jonathan Harris[citation needed]
Russell Boaden[citation needed]
2015 Melbourne AUS[51][52]  Great Britain
John Robertson[citation needed]
Hannah Stodel[citation needed]
Stephen Thomas[citation needed]
 Australia
Colin Harrison[citation needed]
Jonathan Harris[citation needed]
Russell Boaden[citation needed]
 Norway
Aleksander Wang-Hansen
Per Eugen Kristiansen
Marie Solberg

Paralympics[edit]

The Sonar has been the equipment used for the three person keelboat discipline at every Paralympic Sailing Competition.

Event Gold Silver Bronze
2000 Sydney  Australia
Noel Robins
Jamie Dunross
Graeme Martinl
 Germany
Jens Kroker
Peter Muenter
Peter Reichl
 Canada
Davis Williams
Paul Tingley
Brian MacDonald
2004 Athens  Israel
Dror Cohen
Arnon Efrati
Benni Vexler
 Netherlands
Udo Hessels
Marcel van de Veen
Mischa Rossen
 United States
John Ross-Dugan
Jean Paul Creignou
Bradley Johnson
2008 Beijing  Germany
Jens Kroker
Siegmund Mainka
Robert Prem
 France
Bruno Jourdren
Eric Flageul
Nicolas Vimont-Vicary
 Australia
Colin Harrison
Russel Boaden
Rodney Angwin
2012 London  Netherlands
Udo Hessels
Marcel van de Veen
Mischa Rossen
 Germany
Jens Kroker
Siegmund Mainka
Robert Prem
 Norway
Aleksander Wang-Hansen
Marie Solberg
Per Eugen Kristiansen
2016 Rio  Colin Harrison
Russell Boaden
Jonathan Harris (AUS)
 Alphonsus Doerr
Hugh Freund
Bradley Kendell (USA)
 Paul Tingley
Logan Campbell
Scott Lutes (CAN)

See also[edit]

References[edit]

  1. ^ a b c d e McArthur, Bruce (2020). "Sonar sailboat". sailboatdata.com. Archived from the original on 18 November 2020. Retrieved 18 November 2020.
  2. ^ McArthur, Bruce (2020). "Bruce Kirby". sailboatdata.com. Archived from the original on 25 August 2020. Retrieved 18 November 2020.
  3. ^ a b c d e f g Sherwood, Richard M.: A Field Guide to Sailboats of North America, Second Edition, pages 120-121. Houghton Mifflin Company, 1994. ISBN 0-395-65239-1
  4. ^ a b Schanen, Erin L. (2004). "Sonar". American Sailboat Hall of Fame. Archived from the original on 8 May 2004. Retrieved 18 November 2020.
  5. ^ McArthur, Bruce (2020). "Blazer 23 (Kirby) sailboat". sailboatdata.com. Archived from the original on 13 January 2021. Retrieved 13 January 2021.
  6. ^ McArthur, Bruce (2020). "Seidelmann Yachts". sailboatdata.com. Archived from the original on 18 November 2020. Retrieved 18 November 2020.
  7. ^ a b c Rondar Raceboats (2020). "Rondar Sonar - About". rondarboats.com. Archived from the original on 15 November 2020. Retrieved 15 November 2020.
  8. ^ a b c Shumway Marine (2020). "The Sonar — Something for Everybody". shumwaymarine.com. Archived from the original on 15 November 2020. Retrieved 15 November 2020.
  9. ^ Shumway, Skip (15 February 2015). "To all members of the Sonar Class" (PDF). shumwaymarine.com. Archived (PDF) from the original on 13 June 2018. Retrieved 19 November 2020.
  10. ^ World Sailing (2020). "Sonar". sailing.org. Archived from the original on 15 April 2013. Retrieved 18 November 2020.
  11. ^ McArthur, Bruce (2020). "Sonar Class Association". sailboatdata.com. Archived from the original on 18 November 2020. Retrieved 18 November 2020.
  12. ^ http://www.norotonyc.org/swc/site/pages/head.php3
  13. ^ Sonar at World Sailing
  14. ^ http://www.sonar.org/site/files/Library/Results/Sonar%20Worlds%20Final%20Results.html
  15. ^ Sonar at World Sailing
  16. ^ http://www.yachtsandyachting.com/class/Sonar
  17. ^ Sonar at World Sailing
  18. ^ Sonar at World Sailing
  19. ^ Sonar at World Sailing
  20. ^ Sonar at World Sailing
  21. ^ Sonar at World Sailing
  22. ^ http://www.rochesteryc.com/files/Sonar%20Worlds%20Series%20after%20%2010%20races.pdf
  23. ^ http://www.regattanetwork.com/event/9300
  24. ^ Sonar at World Sailing
  25. ^ https://www.yachtscoring.com/event_results_cumulative.cfm?eID=2760
  26. ^ Sonar at World Sailing
  27. ^ https://yachtscoring.com/event_results_cumulative.cfm?eid=2760
  28. ^ https://www.rochesteryc.com/2019SonarWorlds
  29. ^ https://yachtscoring.com/event_results_cumulative.cfm?eID=6051
  30. ^ https://yachtscoring.com/event_results_cumulative.cfm?eID=6051
  31. ^ Sonar at World Sailing
  32. ^ Sonar at World Sailing
  33. ^ Sonar at World Sailing
  34. ^ Sonar at World Sailing
  35. ^ Sonar at World Sailing
  36. ^ Sonar at World Sailing
  37. ^ www.2006ifdsworlds.com.au
  38. ^ Sonar at World Sailing
  39. ^ Sonar at World Sailing
  40. ^ https://www.sailing.org/ifds-worlds-2009.php
  41. ^ www.disabledworlds09.gr
  42. ^ Sonar at World Sailing
  43. ^ www.ifdsworlds2010.com/
  44. ^ Sonar at World Sailing
  45. ^ www.ifdsworlds2011.com
  46. ^ Sonar at World Sailing
  47. ^ www.IFDSWorlds2012.com
  48. ^ Sonar at World Sailing
  49. ^ www.ifdsworlds2013.com
  50. ^ Sonar at World Sailing
  51. ^ Sonar at World Sailing
  52. ^ http://www.ifdsworlds2015.com

External links[edit]