The UT 745 is a designed by Ulstein Technology AS, for following duties:
Transport of pipes, deck cargo, cement and liquid cargo to and from offshore oil production platforms, drilling rigs and pipe laying barges. Loading and unloading alongside the offshore units in North Sea wether conditions with excellent manoeuvring capabilities, and positioned by dynamic positioning system in all service modes including ROW service.
The vessel is also arranged and equipped for Oil Recovery Operations. The vessel is built at Ulstein Verft as hull no. 224.

2017: Still active - IMO 9166546

MAIN DIMENSIONS
Length over all, approx 84,40 m
Length between p.p 76,20 m
Breadth moulded 18,80 m
Depth moulded 7,60 m
Max draught midship 6,31 m

CAPACITIES
Ballast water 1580 m3
Fresh water 1100 m3
Drill water 1070 m3
Fuel oil 1168 m3
Liquid mud 695 m3
Brine 720 m3
Dry bulk cargo tanks (cement) 14,000 cu.ft
Oil recovery tanks approx. 1000 m3
Gross tonnage, international 3061 GRT
Net tonnage, international 1461 NRT
Cargo deck area approx 960 m3
Deck cargo (G="1,0" m above deck) 3000 T
Pipe cargo 2614 T
Deadweight at draught 6,31 m 4587 T

CLASSIFICATION / FLAG
DnV + 1A1 - EO - SF Oil Recovery - DynPos AUT
Flag: Norwegian (NOR)

PERFORMANCE
Speed, approx 15,5 knots

ACCOMMODATION
Cabins with toilet for 36 persons in total, of which:
- Two of one-bed cabins with day room and bedroom
- Nine of one-bed cabins
- Four of two-bed cabins
- One of four-bed cabin
- Capacity for 13 passengers in 4 cabins
- Mess and day room, laundry, hospital
Accommodation facilities for approx. 300 survivors (acc.to NMD)

TECHNICAL DATA
Bulkhandling system
- Eight ULSTEIN vertical Cement Tanks
Total capacity 14,000 cu.ft
Simultaneous discharge of two different dry cargoes

Deck Cranes
- One telescope deck crane 2,5 tonnes at 17 mtr. and 5 tonnes at 11 mtr.

Liquid Cargo discharge systems
- One liquid mud pump 75 m3/h - 24 bar (hydr)
- One liquid mud pump 75 m3/h - 24 bar (el.)
- Two slop circulation pumps
- Eight mud agitators (el.)
- Mud tank cleaning system (with heating)
- Two brine pumps 77 m3/h - 18 bar (el.)
- One fuel oil pump 250 m3/h - 9 bar (hydr.)
- One fresh water pump 250 m3/h - 9 bar (hydr.) *Æ
- One drillwater/ballast/ORO pump 250 m3/h - 9 bar (hydr.)
- Two methanol pumps 50 m3/h - 9 bar (el.)
- One base oil pump 150 m3/h - 9 bar (el.)
- Hydr. aggregate 3*315 l/min. - 280 bar

Rudders / Steering Gear
- Two ULSTEIN High Lift Flap Rudders
- Two ULSTEIN Steering Gear

Side Thrusters
- Two ULSTEIN Side Thrusters forward, each of 883 kW.
- One ULSTEIN Swing-up Compass Thruster fwd. 883 kW
- Two ULSTEIN Side Thrusters aft, each of 662 kw

Roll Damping System
- Three ULSTEIN Passive Stabilizing Tank Systems

Mannoeuvring / Positioning
- ULSTEIN Joystick
- Dynamic Positioning System DnV AUT
- Position Reference system:
- Fanbeam DGPS (Seatex)

Navigation / Communication
- S-band ARPA radar and X-band radars, with plotter
- Electronic chart system. With radio installation according to GMDSS - A3 Inmarsat C and Inmarsat B

Deck Machinery
- One ULSTEIN combined Windlass/ Mooring Winch 15 tonnes
- Two ULSTEIN Tugger Winches tension 12 tonnes
- Two ULSTEIN Capstans aft tension 10 tonnes

Life Saving Equipment
- One MOB-boat with approved one-armed davit
- Six life rafts of 20 persons

Machinery / Propulsion System
- Two Main Engines each of 3345 kW at 600 rpm
- Two ULSTEIN Reduction Gears with 2-speed primary PTO for shaft alternators
- Two ULSTEIN CP Main Propellers, speed 180 rpm

Electric Power Plant (450 VAC - 60 HZ)
- Two shaft alternators, each of 2400 kVA
- Two generator sets 894 kVA
- Emergency generator 81 kVA

Electric Equipment
- ULSTEIN Main Switchboard 450V / 220V
- ULSTEIN Emergency Switchboard 450V / 220V
- ULSTEIN Control Consoles and general Electric Equipment
- ULSTEIN Alarm System (UMAS)
- ULSTEIN Tanktender System
- ULSTEIN Datasound

Yno 224 - Normand Vester