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To bind together to increase tension or to prevent from blowing loose, Thus shrouds, if they have worked loose, are frapped together to increase their tension; a sail is frapped with turns of rope round it to prevent it from flapping in the wind. Frapping lines are passed across the tops of awnings to hold them secure in a high wind. In the days of sail, ships' hulls were sometimes frapped by passing four or five turns of cable-laid rope round them when it was thought that they might not otherwise be strong enough to resist rough weather.

Subjects: Maritime History.

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