Patent ID: 11891977
Assignee: nan
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC B  F  E  Y | IPC E  F

Claim 21:
22. The method according to claim 21, further comprising the steps of:
engaging a plurality of hydraulically operated shear bolts (143) with the mast foot at the normal operating position (140a) of the mast (140) to lock the mast (140) in the normal operating position (140a); and
moving the hydraulic shear bolts (143) out of the engagement with the mast foot, thereby activating a plurality of hydraulic cylinders (144) to compensate the pitching motions of the buoyancy body (110), wherein the hydraulic cylinders (144) adjust angular positions (160′) of the mast (140) to maintain the position of the mast (140) relative to the horizontal plane at calm sea within 2-4 degrees of the normal operating position (140a) of the mast (140) at calm sea; or
moving the hydraulic shear bolts (143) out of engagements with the mast foot to maneuver the mast (140) to a desired position of the mast (140) between the normal operating position (140a), loading and maintenance position (140b) and survival position (140c).