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The boat has a draft of 5.67 ft (1.73 m) with the lifting extended and 2.00 ft (0.61 m) with it retracted, allowing operation in shallow water or ground transportation on a trailer. [1] [2] [3] The boat is normally fitted with a small 3 to 6 hp (2 to 4 kW) outboard motor for docking and maneuvering. [2]
Among mechanical problems, boats with swing keels tended to require more than average maintenance." [3] A 2016 review by Darrell Nicholson of Practical Sailor, concluded, "new or unseasoned sailors making their first or second foray into the boat-buying game may find that the Catalina 25 is an attractive choice. The boat is relatively easy to ...
To reduce the energy required to propel the boat, windmill ships are often equipped with low-friction hull designs, such as multihulls, or they are hydrofoils. Boats without low-friction hulls or hydrofoils can be equipped with wind turbines, but often the force generated by the turbines alone is not sufficient to propel the craft.
The boat has a draft of 4.00 ft (1.22 m) with the keel extended and 1.00 ft (0.30 m) with it retracted, allowing operation in shallow water, beaching or ground transportation on a trailer. [1] [3] The boat is normally fitted with a small 3 to 6 hp (2 to 4 kW) outboard motor for docking and maneuvering. [1] [3]
The apparent wind on the sail creates a total aerodynamic force, which may be resolved into drag—the force component in the direction of the apparent wind—and lift—the force component normal (90°) to the apparent wind. Depending on the alignment of the sail with the apparent wind, lift or drag may be the predominant propulsive component.
They describe the boats as, "a solidly built 25-foot sloop that seats five comfortably in a self-draining cockpit. Despite relatively simple control systems, the Merit has the durability and flexibility for comfortable, all-season sailing in the Bay Area, where typical wind speeds can range from near zero to above 25 knots." [7]
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The apparent wind on the sail creates a total aerodynamic force, which may be resolved into drag—the force component in the direction of the apparent wind—and lift—the force component normal (90°) to the apparent wind. Depending on the alignment of the sail with the apparent wind, lift or drag may be the predominant propulsive component.
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