Triffids Beard 2 - The Bearded Triffid

maniac, manic, manichee, manicure, manifest, manifesto, manifold, manikin, manioc, maniple,
manipulate, manitou, manna, mannequin, manner, manoeuvre, manometer, manor, mansard, manse,
mansion, mansuetude, mantel, mantic, mantilla, mantis, mantissa, mantle, mantra, manual, manufacture,
manuka, manumit, manure, manuscript, manx, many, manzanilla and manzanita are not, and should not
be, controversial words.
Nevertheless I do wonder why a ship is invariably referred to as "she" by both men and women alike.
Perhaps this is the very last legitimate gender-bearing non-biological noun in English?