Mighty Servant 1

Mighty Servant 1 is a 29,000-ton heavy-lift ship capable of carrying very large vessels and offshore platforms. Built for Dutch shipping firm Wijsmuller Transport, which merged in 1993 with Dock Express Shipping to become Breda-based offshore heavy lifting group, Dockwise Shipping B.V.[3] Mighty Servant 1 carried structures such as oil rigs and floating drydocks.[4] Originally 40 m (130 ft) wide, she was increased to 50 m (160 ft) in 1999 to lift the production rig Petrobras 36 or P36.[5][6]

Mighty Servant 1

After being positioned over the submerged deck of Mighty Servant I at Algeciras, Spain, 1 April 1992, Tonkawa (YTB-786) and Eufaula (YTB-800), and the mine countermeasures ship USS Guardian (MCM-5) wait to be raised out of the water.
History
Owner	Dockwise Shipping B.V.
Operator	Anglo-Eastern Limited
Port of registry	Netherlands Antilles, Willemstad
Builder	Oshima Shipbuilding Co. Ltd. Ōshima, Japan
Completed	1983
Identification	Call sign: PJVZ DNV ID: 25696 IMO number: 8130875 MMSI number: 306812000
Status	In service
Notes	[1][2]
General characteristics
Class and type	Semi-Submersible Heavy Lift Cargo Ship
Tonnage	29,193 GT 40,910 DWT
Length	190.03 m (623.5 ft)
Beam	50 m (160 ft)
Draught	4 m (13 ft) (minimum) 8.77 m (28.8 ft) (sailing) 26 m (85 ft) (submerged) 14 m (46 ft) (maximum cargo)
Depth	12 m (39 ft)
Deck clearance	50 m × 150 m (160 ft × 490 ft) load: 19 to 40 t (19 to 39 long tons; 21 to 44 short tons) per m²
Propulsion	2 x 6,770 kW Wärtsilä 12V38A diesel generator sets, driving two c.p. propellers by four E-motors of 3,100 kW each. Two propellers can be driven by one engine. Two bow thrusters of 500 kW each.
Speed	14 kts (cruising); 15 knots (max.)
Endurance	59 days
Capacity	50 × 16 x 7.5 m (160 x 52 x 25 ft) deck Hatch: 31 m × 14.6 m (102 ft × 48 ft)
Crew	20
Notes	[2]