A royal was the top most sail attached to the yardarm of a sailing vessel's mast.
During the promotion of Worf aboard the holodeck recreation of the 19th century brig USS Enterprise, Commander William T. Riker ordered the crew to set royals as they prepared to set sail. (Star Trek Generations)
| Sailing vessel components |
|---|
| Sails and solar sails: Course • Jib • Main sail • Royal • Spritsail •Stunsail • Topgallant sail |
| Spars: Mast • Yardarm • Rigging: Brace • Winch |
| Anchor • Ballast • Keel • Paddle • Plank • Porthole • Rudder • Sextant • Wheel |