DrWatson
16.06.2021 0:27:10
New sailboats that utilize swing keels usually do so for increasing hydrodynamic performance at high speeds and for reducing the draft of an otherwise deep keel.
See full version: What Is a Swing Keel
New sailboats that utilize swing keels usually do so for increasing hydrodynamic performance at high speeds and for reducing the draft of an otherwise deep keel.
The weight of the keel keeps it in the lowered position, but some vessels have a simple locking device to keep the keel in the down position. When raised, the keel or the raising mechanism is locked securely into place.
So then, how are they different from centerboards? Unlike centerboards, which must be lifted vertically out of the centerboard trunk, swing keels hang on a hinge and fold into the hull. Hence, they ‘swing’ instead of raise.
The Catalina 22 is an example of a sailboat with a semi-hidden swing keel. The trunk only partially covers the keel, as the boat is designed for trailering—beaching abilities were not considered key in its development. [links]
Swing keels and centerboards are not the same, but they share some characteristics.
Most swing keels swing down to the front, meaning their hinge is mounted forward. This is advantageous in shallow water, as it allows the keel to swing up into the boat instead of snapping off should the boat run aground. It’s like an automatic failsafe. here
If the weather turns, and you find yourself in a storm, simply lower it and be on your way. here
Centerboard keels are unweighted lifting keels while swing keels generally refer to the weighted lifting keels.
The most important liabilities are your cable, pivot bolts, and eye bolt on the keel. Swing keel cables can simply break off, and with a weighted keel, this can result in you leaving your keel at the bottom of the ocean.
Centerboards will reduce slippage greatly but won't have a large effect on reducing heel. They are faster than fin keels when retracted. Even when lowered, the wetted surface is pretty small, so it will be faster and more maneuverable. more
Swing keels have a couple of moving parts and are one of the more intricate keel designs out there. But this complexity provides you with a major upside. You get one of the most versatile keel types available. here
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Category Daysailer Sailboats
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Category Daysailer Sailboats