SONAR

Main

Appendages
Fin w/spade rudder
Construction
FG
First built hull
1980
Hull type
Monohull
Model
SONAR
Sailboat builder
Seidelman
Sailboat designer
Bruce Kirby

Dimensions

Ballast Type
Lead
Ballast weight
422.0
Beam
2.39
Displacement
953.0
Draft
1.19
Max Draft
1.19
Overall length
7.01
Waterline length
6.07

Sails

E
3.41
Est. Forestay Length
8.09
Fore area
10.34
I
7.62
J
2.71
Mainsail area
14.31
P
8.38
Total area
24.62

Engine

Performance

Ballast ratio
44.29
Capsize Screening Formula
2.45
Comfort Ratio
10.04
Critical hull speed
5.98
Displacement-length ratio (DLR)
118.61
Upwind sail area to displacement
25.92

Accomodation

The SONAR is a type of sailing boat that was designed specifically for competitive racing. It was first introduced in 1979 and has since become a popular choice for sailors around the world.

The SONAR is a keelboat, meaning it has a heavy keel at the bottom of the hull to provide stability and prevent capsizing. It is a three-person boat, typically sailed with a crew of one or two people and a helmsman. The boat is designed to be easily handled by a small crew, making it accessible to sailors of varying skill levels.

One of the key features of the SONAR is its adaptability. It can be sailed in a variety of conditions, from light winds to heavy weather, making it suitable for both recreational sailing and competitive racing. The boat is known for its responsiveness and maneuverability, allowing sailors to quickly adjust to changing wind and water conditions.

In terms of performance, the SONAR is known for its speed and agility. It has a sleek hull design and a powerful sail plan, allowing it to reach high speeds and perform well in races. The boat is also equipped with a spinnaker, a large, lightweight sail that is used for downwind sailing, further enhancing its speed capabilities.

The SONAR class has a strong international following, with fleets located in many countries. It is recognized as a Paralympic class boat, making it popular among disabled sailors as well. The boat is often used for both fleet racing, where multiple boats compete against each other, and match racing, where two boats go head-to-head in a one-on-one competition.

Overall, the SONAR is a versatile and competitive sailing boat that offers a thrilling experience for sailors of all levels. Its combination of speed, maneuverability, and adaptability has made it a popular choice for both recreational and competitive sailors around the world.

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