Definition(s)
Gantry (also known as A-Frame or Mast)
A structural frame, extending above the upper-structure to which the boom support ropes are reeved.
Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards
Gantry (also known as A-Frame or Mast)
A structural frame, extending above the machinery deck or upper-structure to which the boom support ropes are reeved.
Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards