Anchor Handling Tug Supply Vessel C HARSHA NA

Anchor Handling Tug Supply Vessel C. HARSHA NA 07 B 007 DEEP SUNDAR NA 07 B 012

AHTS • Offshore supply vessels specially designed to provide anchor handling and towage services for semi submersibles, platform jackets, barges and production modules/vessels. • Some Anchor handling tug supply (AHTS) vessels are equipped for fire fighting, rescue operations and oil recovery also. • AHTS vessels range from small and compact vessels to large and powerful ships. ( 30 mts to 100 mts ) They can be fitted with the world’s largest advanced winches, providing tremendous pulling power for working at the deepest depths

Towage Services • Anchor handling tug supply (AHTS) vessels tow oil drilling rigs or jacket platforms to their location and back, behaving like an ordinary tug. • For towing Anchor handling tug supply (AHTS) vessels have very high power engines (~12000 bhp) for an enhanced towing and anchor handling capacity. They have more power to increase the bollard pull. –*Sea Eagle 1* • Modern vessels are capable of positioning and mooring drilling rigs in any location, at virtually any depth and under any conditions. – *TIDEWATER*

Anchor Handling • Machinery is specifically designed for anchor handling operations. • They have an open stern to allow the decking of anchors. • They have arrangements for quick anchor release. • Fitted with powerful winches for quick and effective anchor handling.

Other Secondary Uses • Fire Fighting: Modern vessels are fitted with pumps that can spray water. • Rescue Operations: They have a large deck area and exhibit good stability suitable for rescue operations. Sea Eagle 1 can carry a maximum weight of 2, 300 t without submerging. • Oil Recovery: Modern vessels are fitted with suction pumps that can be used to clean in case of oil spills.

Machinery on board a typical AHTS DECK MACHINERY Anchor Windlass 1 Deck Crane ( Telescopic type) 2 - 3 Tugger Winches 2 Towing and Anchor handling winch 2 Towing pin and shark jaw 1 (hydraulic) Mooring winches 4 Mooring Anchors 4

A Towing Pin and Shark Jaw

Main Machinery • • • Main Engine Steerable thruster Tunnel thruster Generator Harbor generator Emergency generator Air compressor Air receivers Bilge/ballast pump Fire pump Fuel oil Cargo/ transfer pump Drill water pump

80 TON BOLLARD PULL AHTS Owner : Halul Offshore Services Company W. L. L Builder : TBA Classification: LR / IAACS Member HALUL OFFSHORE SERVICES Co. W. L. L

Halul Offshore Services Financial Status

GENERAL SPECIFICATIONS OUTLINE • Twin screw Anchor Handling, • Towing, Supply and fire fighting Vessel completely outfitted and equipped for rescue, offshore supply and other related duties. • Operational on a twenty-four (24) hour per day basis. • Vessel shall be capable of operating in all seas and weather conditions, which may occur.

Operational Requirements • Transport fresh water, diesel oil, deck cargoes, bulk cargoes (cement/Barites/Bentonite) liquid mud, stores, materials & equipment. • Tow / move Rigs • Anchor handling • External fire fighting • Transportation of passengers to and from Oil field, located offshore in the State of Qatar

Operational Requirements • To berth and/or hold station near offshore platforms to safely transfer passengers, liquids, deck and bulk cargoes. • Rescue personnel fallen overboard and pollution control • Helicopter hoisting facilities • 24 -hours/day continuous operations, capable of remaining on station for a minimum of 15 days.

Operational requirements • Good maneuverability and station keeping 1. Twin controllable pitch propellers 2. Twin rudders / Azimuth Thrusters 3. Bow and stern thrusters • Wheelhouse is designed to ensure excellent all-round view. 1. full-length windows and deck head windows 2. Additional CCTV monitoring with 3 cameras (zoom and wide angle)

Endurance Requirement • Provide a stable platform/deck even in rough weather conditions. • To minimize pounding and rolling, the main weight should be concentrated mid-ship and aft and the hull form should feature a fine bow with flared section above waterline.

Principal Particulars • • • Dimensions (approximate): Length overall Breadth moulded Depth moulded Draft Scantling Draft loaded (Maximum) • • • Performance: Dead Weight Bollard Pull Trial Speed at 100% MCR & 4. 5 m draft Service Speed at 85% MCR & 4. 5 m draft Endurance 70. 00 m 16. 00 m 7. 00 m 6. 50 m 6. 00 m 2500 T 80 T 13. 5 Kts 12. 5 Kts 15 days at service speed

Machinery Main Engine Propulsion System Generating Set driven) Shaft Alternator Emergency Generator Main Engine driven Fi-Fi pump Bow Thrusters Stern Thrusters Fuel Oil Cargo Pump @75 m head Fresh Water Drill Water Pump Mud Pump 2 x ~2750 KW conventional or Azimuth 3 x ~400 Kw (diesel 2 x ~1200 KW (each) 1 x 120 Kw (diesel driven) 2 x 1650 cu. m 2 x~500 KW 1 x~500 KW 2 x~100 cu. m/hr

Complement • • • Crew 18 men Hospital 0 men Special personnel 20 men Total 38 men Clear ceiling is not to be less than 2150 mm (average) generally in accommodation spaces • The accommodation is well appointed and centrally air-conditioned.

Classification • The vessel including its Hull, Machinery and outfitting equipment shall be constructed in accordance with the latest Rules for Building & Classing of Steel Vessel to Lloyd Register of Shipping. • Rules which may come into force prior delivery of the vessel shall be treated as modification. Registry • The vessel will be registered at Doha, under the flag of Qatar.

Rules & Regulations • SOLAS • International load line convention • International convention for prevention of pollution by ships • Radio communications regulations • Regulation for Prevention of collisions at sea • IMO, ISO and many others

Certificates • Builder’s certificate • Classification certificate • safety equipment, construction, radio certificate • Load line certificate • Tonnage certificate • IOPP certificate and many others

Materials & Workmanship • • • good shipbuilding quality test certificates good welding quality Blasted and primed before using. Only mild steel to be used for hull structure All visible plates are to be smooth and straight • Makers List • All timber to be impregnated against rot, infestation and free from odour.

Welding • Contract plans, specification & classification requirement. • High standards of up-to-date welding practice • Alignment, fairness, edge preparation and gap widths. • Continuous welding is to be used for all the structure up to uppermost continuous deck and weather exposed area. • Intermittent welding to be used only inside the superstructure.

Inspection/Supervision • surveyors, owner’s representative and consultants are to be given free access to the builder’s yard. • Qualified personnel shall be in attendance during installation, commissioning , testing , dock trials and sea trials as necessary at builder’s expense. • QAP Plan showing inspections and control points by class and owners representatives, within 2 months of contract signing.

Tests • • • Shop Trials Onboard Trials Alternator set load trials Hydrostatic pressure tests Sea trial 1. 2. 3. 4. Speed trial Endurance trial Steering and turning circle trial Stopping and astern trial • Inclining test • Environmental conditions • Trim and stability

• Dock trails are carried out in accordance with a programme agreed between builder and the owner • Trim and stability

Drawings • • General arrangement Hydrostatic curves Stability booklet Dimensional profile Docking plan Anodes plan Structural profile and deck Midship section

Drawings • • Engine seating detail Forward sections Aft sections All transverse and longitudinal bulkheads Superstructure detail `A’ bracket details Shafting arrangement Rudder arrangement

Drawings • • Rudder stock and rudder drawing Anchoring and mooring arrangement Deck outfit plan Ship’s fuel oil and Lube oil system Engine room layout Thruster tunnel details Refrigeration system Schematic wiring and reference to fittings

Drawings • • Shaft generator arrangement Ventilation arrangement Cargo securing manual Fire safety operation booklet Training manual for fire fighting Well killing liquid system External FI-FI system Layout of manholes and hatches

Drawings • • • Mast drawing Bulk cargo system Purification system Painting scheme Fendering plan Towing and anchor handling arrangemet and details including all the equipments onboard like stern roller, tow pins, shark jaw, towing bollard, AHT winch etc.

• Environmental conditions The vessel, plant, machinery and equipment, their components and related systems shall be entirely suitable for service under following conditions

• • Sea water temperature 36 C Ambient air temperature 50 C Relative air humidity 92% Wind velocity 18 m/sec Significant wave height 3. 0 m Current velocity 1. 0 m/sec Wave period 10 sec

• • Framed Plans Vessel Operating Manuals of Machinery and Equipment Spare Gear and Tools Practice Modification Ship’s Model A scale of 1: 100 shall be supplied • Model test • Delivery

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