Hotchya Marine Engineering has designed a unique research vessel

Anton Valerin

Hotchya Marine Engineering is one of the few shipbuilding companies providing design and counseling services, as well as implementing its own projects for various types of sea vessels, including those designed for the oil and gas industry to be possibly operated in the Far North.

Using its production capacities combined with a unique experience gained by its engineers, the company can provide for designing and building both small sea tugs, and large freezer trawlers (LFTs), special vessels, sea and river tankers, and dry bulk carriers.

As a result of the complex and meticulous work by Hotchya Marine Design, the project of a research vessel (NIS 50010) for an integrated research of the global ocean was implemented. The works were carried out within the framework of the “Civil marine facilities development for 2009- 2016” federal special-purpose program.

The Project Owner set a challenging task – design a state-of-the-art research vessel based on the existing mass-produced 50010 freezer trawler as soon as possible. The engineering section had to be carefully designed. We had to consider every minor detail of the hull structure assembly and disassembly technology. It is common knowledge that vessel retrofitting is much more difficult than designing “from scratch”.

Hotchya Marine Design successfully accomplished the set task. Our engineers found a way to accommodate five research labs, a coordination center, a centerboard, and other equipment required for the vessel to perform research functions with the minimum amount of the “old” hull modification.

NIS 50010 is a vessel with the length of 38.5 m and the width of 10.2 m. The vessel can accelerate to 11 knots while free-running, and to 5 knots while trawling. The vessel endurance for research purposes is 28 days.

To minimize the vessel’s own noise during a trawl-acoustic survey, the vessel is equipped with an appropriate propulsion system.

The main propulsion system consists of two diesel generator sets installed on separate shock insulation pads, which makes it possible to avoid transmitting vibration to the hull. The propeller is driven by two DC motors. Switch mode power transformers (IGBT modules) ensuring low Krating factors are used for supplying power to and controlling the propulsion system motors. When IGBT switches are used, the harmonic current and voltage distortion in the range from 0 to 100% capacity does not exceed 3%.

In accordance with the design, the new research vessel will have research and commercial fishing equipment installed, consisting of an all-round biosonar and a Furuno echo sounder. It is also intended to use Konsberg multibeam echo sounders, immersion sounding and towed equipment, a TRDI Ocean Surveyor ADCP, etc. When hovering for research purposes, the vessel is able to remain at the point of positioning using two 400-600 kW maneuvering devices, installed in the bow or stern.

In accordance with the design requirement, the vessel shall have specialized laboratories, including two hydrobiology (dry and wet) labs and two ichthyology labs, as well as a coordination center with a server and an acoustics lab. The installed facilities will provide for fish processing, freezing, and extended storage of frozen fish.

A closed research hangar and a special shaft with a winch for installing the centerboard will be provided aboard the new research vessel. There will be cranes on the decks, as well as trawl, ocean and hydrobiology survey winches for overboard research.

The research vessel will be capable of carrying out the entire range of research works in the field of commercial fishing, marine science, and biology.

Hotchya Engeneering

6b, Karla Marksa str., Severodvinsk, Arkhangelsk region, 164500, Russia

Phone: +7 (8184) 92 00 92

E-mail: info@hotchya.ru

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# 1(43), 2013
Ocean and shelf exploration