1) Ketch pole 2) Maritime upright 3) Mast 4) Post at sea 5) Schooner or brig component 6) Schooner spar 7) Sloop part 8) Yawl pole 
===Comprehensive Corporate Power=== Another apparently lost/orphaned VfD nom, as the tag was added November 25, but it doesn`t seem to have ever been placed on the main VfD page, and doesn`t appear on `old`. Procedural/delete--according to the author, `It is, how some might have suspected, nothing more then a figment of my imagination.` Nite...
sailing ship's principal mast
sailing ship's principal mast
• (n.) The principal mast in a ship or other vessel.
(from the article `sail`) ...mast is often the primary reference point; therefore, the names of the masts and their location are important. Starting at the bow in a two-masted ...
the principle mast
Main'mast` noun (Nautical) The principal mast in a ship or other vessel. 
the tallest mast of the ship; on a schooner, the mast furthest aft.
Aboard the three-masted Concordia, the middle of the three
(or Main) The tallest mast on a ship.
[n] - the chief mast of a sailing vessel with two or more masts
noun the chief mast of a sailing vessel with two or more masts