MARINTEC ROUND-UP Twin-skeg hullform for Tarbit newbuilds B
UILDING to a Skipskonsulent design in China are two 25,000dwt, IMO Type II chemical/products tankers for the Swedish owner Tarbit Shipping AB, with deliveries from Shanghai Edward Shipbuilding scheduled for the second quarter of 2006 and end-2006/beginning 2007.
This SK4226 design follows those other Skipskonsulent tankers discussed in our January edition, page 16, in having a high level of emphasis on safety in coastwise trades, featuring a twin-skeg hullform with redundancy in the form of twin medium-speed engines, two CP
propellers, two rudders, and a 450kW bow thruster.
All these should give excellent
manoeuvrability, and with a hullform designed for minimum resistance, a trial speed of 17.00knots (service speed 16.00knots) is anticipated.
The tankers are being strengthened to Ice Class 1Aand have a cargo capacity of 26,900m3. They
are also designed for a short turnaround with the latest 'super stripping' cargo handling features. Eight segregations are possible, with a discharge rate of 3000m3
/h when eight of the 16 x 375m3 submerged pumps are running. Profile of Skipskonsulent's SK 4226 design for Tarbit Shipping. /h
TECHNICAL PARTICULARS SK 4226 TANKERS
Length, oa…………….................177.10m Length, bp……………................ 167.00m Breadth, moulded………..............26.00m Depth, to main deck……............. 12.80m Draught, design……………............9.20m Draught, scantling……….…...........9.70m Deadweight………….......... 25,000tonnes Cargo capacity…………........... 26,900m3 Main engines……….............. 2 x 5850kW Classification…….... Germanischer Lloyd + 100 A5 E3, NAV-OC, ESP, INERT, IW, RP2 50%, Oil Tanker, and
Chemical Tanker, Type II, + MC AUT
Chinese facility expanded for increased output C
ATERPILLAR has expanded its global presence by added investment into one of its key engine manufacturing facilities in China, Caterpillar Motoren Guangdong Co Ltd. Some time ago, the facility began producing MaK M25 marine engines for propulsion and genset applications (MaK has been a member of the Caterpillar group for a few years now). Manufacturing for this medium-speed engine is now closer to the growing number of Asian shipyards, reducing delivery times and transportation costs for customers.
Expansion of operations at Caterpillar Motoren Guangdong is part of Caterpillar's long-term and ongoing strategy to be a global manufacturer of diesel and natural gas engines. The company is focused on expanding its presence in China and now operates 13 facilities/joint ventures in the country, with more than 4300 people employed in China. Located 12km from Guangzhou, Caterpillar Motoren Guangdong manufactures, tests, and supplies medium-speed MaK engines. This site has produced MaK M453C in-line diesel engines for ship propulsion, genset use, and power plant operation since 1996. By adding manufacturing of the smaller MaK M25 engine, the facility has expanded its medium- speed engine production.
The M25 features a power range from 1800kW (2450bhp) to 2970kW (4040bhp). It has a bore of 255mm and a stroke of 400mm,
82
Caterpillar Motoren Guangdong has recently been upgraded, and is now producing the MaK M25 engine series.
with speeds of 720rev/min and 750rev/min. With the addition of M25 production has come a comprehensive upgrade of Caterpillar Motoren Guangdong's assembly line capacity, test beds, and quality control operations. Being part of the global Caterpillar production and quality management system, Guangdong operations provide the same products as the other Caterpillar marine engine manufacturing sites located in the USA, Germany, Belgium, and the UK. In fact, the
M25 engines being assembled in Guangdong utilise component packs completely supplied by Caterpillar Motoren, in Germany, thus helping to guarantee identical engine quality. Guangdong operations represents the largest medium-speed engine manufacturing site in Southern China, according to Caterpillar, and the facility is poised to reach high production levels in 2006 to meet the increasing demand for M25 engines in both domestic and international marine markets.
THE NAVALARCHITECT FEBRUARY 2006
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88 |
Page 89 |
Page 90 |
Page 91 |
Page 92 |
Page 93 |
Page 94 |
Page 95 |
Page 96 |
Page 97 |
Page 98 |
Page 99 |
Page 100