Private signal

A private signal is a custom-designed flag used to symbolize and identify the owner of a boat.^[1] They generally have a swallowtail shape but may instead be rectangular or sometimes triangular.^[2] Private signal tradition is drawn from heraldry but typically does not incorporate as intricate designs as a coat of arms.

^ Rousmaniere, J. (1989). The Annapolis Book of Seamanship (2nd rev. ed.). New York: Simon and Schuster. pp. 366–367. ISBN 978-0-671-67447-2. OCLC 19515016. OL 2187981M.
^ Maloney, E. S. (1999). Chapman Piloting: Seamanship and Boat Handling (63rd ed.). New York: Hearst Marine Books. pp. 584–585. ISBN 978-0-688-16890-2. OCLC 42282174. OL 7727401M.

[Rousmaniere1989-1] Rousmaniere, J. (1989). The Annapolis Book of Seamanship (2nd rev. ed.). New York: Simon and Schuster. pp. 366–367. ISBN 978-0-671-67447-2. OCLC 19515016. OL 2187981M.

[Maloney1999-2] Maloney, E. S. (1999). Chapman Piloting: Seamanship and Boat Handling (63rd ed.). New York: Hearst Marine Books. pp. 584–585. ISBN 978-0-688-16890-2. OCLC 42282174. OL 7727401M.

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