A stunsail was an extra sail that was attached to the yardarm of a sailing vessel.
During the promotion of Worf aboard the holodeck recreation of the 19th century brig USS Enterprise, when asked by Geordi La Forge, what a stunsail was after he was order to set them, Commander William T. Riker pointed out that it was the sail located just above the last yardarm. (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 |