Semi submersible drill rig Chris Chenery
Circa 1976, North Sea before helideck was relocated. Built by Blohm & Voss, Hamburg, 1973/4 for Offshore Company (IDC). There are only 2 rigs of this design, the other built as Afortunada now Noble Ton Van Langeveld.
I worked on CC 1975-1977 (UKCS 211/13-3, 211/23-6, 3/12-1. Norway 1/6-4,17/11-2)
CC is now in Pacific owned by Pride.
Picture added on 03 April 2015 at 15:38