Page 38: of Maritime Reporter Magazine (November 1984)

Valmet Delivers First Of Four

Supply Vessels To Soviet Union

Valmet's subsidiary yard, Val- metin Laivateollisuus Oy in Turku,

Finland, recently delivered the first unit in a four-vessel series being built for the Ministry of Gaz Indus- try of the USSR. The supply/ anchor-handling vessel Rioni incor- porates a number of interesting fea- tures, like the "father and son" ma- chinery installation, as well as one- compartment structural subdivision to provide extra safety for opera- tions in harsh conditions such as the

Arctic.

The Rioni (shown above) is the lead vessel in the series that will be delivered during 1984-85. Behind the customer's decision to place the order with the Valmet yard was, among others, the fact that Laiva- teollisuus already had good experi- ence with such craft. In the mid-70s the Turku yard built a series of

Ulstein type UT 704 vessels for I.M.

Skaugen in Norway and The Off- shore Company of Houston. The

Rioni type, however, is the yard's own design and is tailor made to meet the stringent requirements of the USSR rules and specifications.

The Rioni type is intended to serve the needs of offshore installa- tions with the transport of pipe, bulk material, fresh and potable water, fuel, cement and mud, as well as food provisions in refrigerated containers. She will also be able to tow drilling rigs and other struc- tures. In addition, she will be able to carry and handle anchor chains and cables of the offshore structures, as

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The Rioni has an overall length of 220.8 feet, beam of 45.6 feet, and design draft of 16.4 feet. Storage capacities are designed to give 30 days of uninterrupted operation with a complement of 24 and at an 85-percent machinery output.

The machinery arrangement com- prises two separate propeller shafts, each driven via a reduction gear by two diesels of different sizes. Each diesel is coupled to the reduction gearbox by flexible couplings; in ad- dition, the smaller engines are cou- pled from their front ends to sepa- rate alternators. Thus the smaller engines serve a dual purpose—as a main engine or as a generating set, either coupled independently.

All four diesels are of Wartsila type 22, the two larger in V form with 22 cylinders each and the two smaller units in R form with six cylinders each. The corresponding outputs are 2,420 bhp and 1,200 bhp, respectively, for a total vessel output of 5,330 bhp. Both of the smaller engines are fitted with 550- kva alternators. One generator is needed to serve the vessel in all con- ditions except when the 1,000-hp bow thruster and the towing winch or the cargo-handling equipment are in operation.

The two propellers are of control- lable-pitch type fitted in fixed noz- zles. They can be controlled by joy- stick type operation from both ends of the bridge. Also on the bridge are remote controls for the towing winch, and alarm stopping of the cargo pumps.

The one-compartment structural subdivision is achieved by careful placement of the bulkheads and tanks. As a result, either of the com- partments may be flooded without causing danger to the vessel.

Browning Named Contracts

And Sales Vice President

For Sonat Offshore Drilling

As part of the recent consolida- tion of the Executive Marketing and

Contracts and Sales Departments,

Sonat Offshore Drilling Inc. of

Houston named J. Robert

Browning to the position of vice president-contracts and sales, a po- sition that has been vacant for some time. Prior to this change, he was the vice president of executive mar- keting.

Mr. Browning began his career in the petroleum industry in 1952 in

Maracaibo, Venezuela, as a mud en- gineer for Mene Grande Oil Compa- ny, a subsidiary of Gulf Oil. In 1964 he joined Sonat Offshore Drilling as an assistant manager in Libya and was progressively promoted to more responsible positions in Africa and the Mideast prior to returning to the Houston headquarters in 1981.

In his new position, he will manage the worldwide contracts and sales functions, including these depart- ments in the London and San Fran- cisco offices. 120 Maritime Reporter/Engineering News