V-door ramp(A slide-like ramp used to pick up and lay down tools to and from the catwalk/pipe rack area. Also used to pick up drill pipe, drill collars or any other heavy equipment that could not be done safely because of the height of the substructure and close proximity to the blowout preventers, electric and hydraulic lines, and other equipment in the area azimuth-drilling.comNekochan)
