dolphin striker(redirected from martingale boom)
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A small vertical spar under the bowsprit of a sailboat that extends and helps support the martingale.
(Nautical Terms) nautical a short vertical strut between the bowsprit and a rope or cable (martingale) from the end of the jib boom to the stem or bows, used for maintaining tension and preventing upward movement of the jib boom. Also called: martingale boom or martingale