Turtle

turtle - A bag in which a spinnaker or other large sail can be stowed with the lines attached so that it can be rapidly raised.
twine - Small line used for whipping other light duties.

Turn turtle: To capsize.
Turn-buckle: A metal appliance consisting of a thread and screw capable of being set up or slacked back and used for setting up on rigging.

If a boat turns 'turtle' this means the entire boat has turned upside down. If this happens, you should grab the daggerboard and lean back until the sails and board are parallel to the water. Then follow the procedures above.

DECK, TURTLE A term applied to a weather deck that is rounded over from the shell of the ship so that it has a shape similar to the back of a turtle. Used on ships of the whaleback type and on the forward weather deck of torpedo boats.

Like the symmetric, the asymmetric is often stored in a turtle, with the corners on top for easy access. While a symmetric spinnaker is flown with a "guy" and a "sheet", an asymmetric spinnaker is flown with a "tackline" and a "sheet.

If only a short portion is so covered in, the covering is often rounded off along its sides and is then termed a turtle back, ormonkeyforecastle,when fitted forward, and a turtle back, or hood, when fitted aft; ...

Righting the capsized boat, especially if it has 'turtled,' or gone 180-degrees from upright, is often very difficult.

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They were afraid she would turn turtle. A surveyor from the Trinity House was sent aboard, and he made a report which was submitted to her designer, ...

When any object turns over. When a sailboat capsizes all the way, turning upside down, she turns turtle. The capsize screening test is a mathematical formula that estimates a boat's likelihood of capsizing and remaining upside down.
captain ...

Capsizing is when your boat turns keel uppermost, but a capsized dinghy may be either floating with the mast and sail lying on the water, or may have turned turtle lying with the mast pointing downwards.

Several times we gained momentum and steered hopefully toward the dogleg pass through the reef only to feel the dull thud of my seven-foot keel mating with thin sand and turtle grass.