Originally launched in 1977 by Australian builder Jarkan Yachts, this compact fractional sloop represents a thoughtful approach to small boat design from the Adams drawing board. With its fiberglass construction and keel-centerboard configuration, the design offers versatility for both shallow water exploration and deeper water sailing performance. The boat's moderate displacement of 1,964 pounds combined with 220 square feet of sail area creates a responsive sailing character well-suited to day sailing and weekend coastal cruising. The fractional rig provides excellent sail shape control and reduces weather helm, making it manageable for smaller crews. At just over 21 feet overall, the design maximizes its waterline length of 17.49 feet, contributing to a respectable hull speed of 5.6 knots. The comfort ratio of 10.38 indicates this is definitely a performance-oriented design rather than a heavy cruiser, while the capsize screening formula of 2.53 suggests reasonable stability for coastal waters. The keel-centerboard arrangement allows access to shallow anchorages while maintaining good windward ability when the board is deployed. This Adams 21 would appeal to sailors seeking an affordable entry into keelboat sailing or those wanting a spirited day sailor with trailering capability.
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