Page 11: of Maritime Reporter Magazine (June 1996)

6000, is 12.5 ft. (3.8 m) long with a 2.3-ft. (.7-m) diameter. Propelled by four end thrusters, it travels at a speed of three knots. The vessel, which operates independently of its mothership, will be used for a number of purposes, including deepsea mine sourcing, search and survey for sunken vessels and sci- entific activities such as oceano- graphic data measurements.

Two monitoring PCs are con- nected to a variety of sensors, which control maneuvering, depth sensing, obstacles, conductivity, temperatures, communications and other facets of operations. The vessel carries out programmed missions by recording data in the hand memory board of its internal

PC, using video cameras, still cam- eras and scanning sonars. This data is retrieved by the mothership upon return to the surface.

The propulsion system is com- posed of a silver-zinc battery, which provides 24 volts of energy to the four 75-watt motors. The battery reportedly activates the thrusters for an average period of 10 hours, without the need to recharge. Because the AUV dives to a depth of 6,000 m, where pres- sure is 600 Kgf/cm, Daewoo has designed all structural, metallic and control components with spe- cial technology and materials. For example, the hull structure is made of special composite materi- als featuring high buoyancy. In addition, different section modules can be replaced for specific mis- sions. Five acoustic ranging sonars analyze obstacles in front of the AUV and help to keep it at the programmed height from the sea bottom. The video and still cam- eras record images of the sea bot- tom, while two side-scan sonars scan the sea floor with a band width of 2,625 ft. (800 m). Daewoo has reportedly used the AUV on more than 30 occasions to record pictures and video films in order to map Okpo Bay.

With local development of the

AUV, the world's 11th such vessel,

Korea became the seventh nation to complete development, following the U.S., Canada, Japan, France,

Russia and China.

For more information on

Daewoo Heavy Industries

Circle 2 on Reader Service Card

Council Member Speaks For

Tanker Owners

The overall aims of Intertanko are to promote safety at sea and protect the marine environment while maintaining free competition in tanker shipping, unhindered by protectionist legislation. One of

Intertanko's greatest concerns is to safeguard the tanker industry's structural integrity and ensure that tankers are being operated in accordance with internationally accepted rules and standards.

Intertanko's goal is to restore the maritime authorities' confidence in tanker owners by showing their best endeavors to comply with international rules and regulations as enforced by flag states. But flag states must have a competent mar- itime authority to implement ships' safety standards based on

IMO's codes, rules and regulations.

Intertanko therefore welcomes

IMO's efforts to set up criteria in order to ensure that maritime authorities implement administra- tions and ensure compliance with international conventions. Port state control is seen as an effective means of policing the performance of flag states and classification societies, as well as an instrument for detecting substandard tankers.

Intertanko follows and believes that initiatives like the U.S. Coast

Guard Port State Inspection

Targeting Scheme or the U.K.

Targeting Scheme might eliminate ships who underperform on safety standards by imposing severe pro- hibitive sanctions against them.

The preceding was excerpted from a precis of John R. Lean's speech,

Cleaner Seas Program — The

Need for an International Solution, given at the Maritime Technology

Exhibition Conference. Mr. Lean is a council member of the

International Association of

Independent Tanker Owners (Intertanko).

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Circle 209 on Reader Service Card

June, 1996 13