With limited specifications available, the Four 21 represents a compact sailing vessel that likely falls into the small cruiser or daysailer category based on its numerical designation. This boat appears to be designed for recreational sailing enthusiasts seeking an accessible entry point into the sport or experienced sailors wanting a manageable vessel for day trips and weekend adventures. Given its size class, the Four 21 would be well-suited for coastal sailing, protected waters, and daysailing activities. The boat's design likely emphasizes ease of handling and simplicity, making it an attractive option for single-handed sailing or small crew operations. Its compact dimensions would facilitate launching and retrieval at various boat ramps, while also keeping maintenance requirements relatively modest. While detailed historical context remains elusive due to limited documentation, boats in this size range typically feature practical layouts optimized for day use, with possible basic overnight accommodations. The Four 21 would appeal to sailors prioritizing affordability and simplicity over extensive cruising amenities, making it potentially suitable for sailing instruction, casual recreation, or as a stepping stone to larger vessels.
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What is the Four 21's comfort ratio?
The Four 21 has a Ted Brewer Comfort Ratio of 19.68. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.
Is the Four 21 safe for offshore sailing?
The Four 21 has a Capsize Screening Formula value of 1.9. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.
What is the hull speed of the Four 21?
The theoretical hull speed of the Four 21 is 5.92 knots, calculated from its waterline length.
How much does a Four 21 weigh?
The Four 21 has a displacement of 3,584.00 lb and a length overall (LOA) of 21.50 ft.
Who designed the Four 21?
The Four 21 was designed by John Powell, first built in 1964.