The eight-leg steel jacket was launched into the sea on 11 May, in 98 metres of water, and piled to the seabed. Positioning this structure presented no major problems – an important step for Elf, since considerable calculations and tests had been carried out for the launch after the DP1 accident.
The module support frame was lifted into place by the Micoperi PM27 crane vessel on 4 August, with the quarters module and helideck following in late October. Installation of the production modules, including the Forex Unifor I drilling rig, continued until the following spring. The first production well was spudded in July 1977. The whole process from loadout to the start of drilling lasted from May 1976 to July 1977.UK-Norwegian Frigg treatyMCP-01 installed