Abstract: A buoy device includes a first part having a first support structure and a second part having a buoyant body and a second support structure. The first and second support structures are connectable to form a rotatable connection between the first part and the second part. The buoyant body further includes one or more buoyancy elements releasably arranged on the second part. The buoy device may be a turret buoy, a CALM turret buoy, or a CALM turntable buoy.

Abstract: A flexible elongate element for installation in a body of water to extend between a seabed connection device and a unit arranged at the opposite end of the flexible elongate element. At least one lateral displacement device is connected to a portion of the flexible elongate element and configured to displace at least a portion of the flexible elongate element a lateral distance away from a first axis extending between the seabed connection device and the unit, the at least one lateral displacement device including a spring member. The flexible elongate element may be a flexible riser, umbilical, hose, or cable.