Masts are portable load-bearing structures used to support and position the drill string. Masts perform a similar function to that of derricks, but are typically pre-assembled and mounted on a frame, ...

Even with sails stowed, the mast and its rigging would have provided a vast surface area for wind resistance. The Bayesian ...

Designed for aspiring young officers, it established Steel's reputation as a publisher. The book describes theoretical and practical aspects of masts, rigging, and sails, and the science of sailing.

Substructures are the structural components of land and water-based oil platforms which support the derrick, mast, or other rig components, as well as providing storage space below the main deck. They ...

TRAVERSE CITY — The mast on a 41-foot Jeanneau sailboat snapped on Grand Traverse Bay near Power Island Monday afternoon during rough weather. Because of a possible failure in the rigging ...