Kockums Delivers The 'Madame Butterfly' —First Of Four For Wallenius Lines
The Madame Butterfly, first in a series of four pure car/truck carriers (PC/TC), was delivered recently by Kockums, A.B., Malmo, Sweden, to Wallenius Lines, Stockholm. A second vessel, Figaro, will be delivered later this year, and two more vessels are scheduled for delivery in 1982 to the same owner.
The 13-deck, 17,000-dwt Madame Butterfly is the first major ship of this type to be built outside Japan. She can transport 6,120 passenger cars or a combination of 2,900 cars and 520 commercial vehicles.
Designed for a service speed of 20.3 knots, the ship has an overall length of 198.12 m, a moulded breadth of 32.25 m, a height to the sixth deck of 13.64 m (13.69 m aft) and a scantling draft of 11.5 m (about 650 feet, 105.8 feet, 44.8/44.9 feet and 37.7 feet). Built to Lloyd's Register of Shipping 200A1 classification, the vessel's propulsion is supplied by a Burmeister and Wain type 7 L80GFCA direct-reversing diesel engine which is derated to 18,400 bhp at 106 rpm for fuel economy. It drives a solid propeller and is r e m o t e l y c o n t r o l l e d from the bridge or f r om the engine control room.
The electrical supply is from three diesel engine-driven 2,000 kva, 1,600-kw, 440-volt alternators, each engine being a Wartsila- Vasa 4-stroke unit running at 720 rpm.
To conserve on fuel, the autopilot is designed to reduce unnecessary c o u r s e c o r r e c t i o n s. Each ship of this series has a 1,500-hp bow thruster.
MacGregor S c a n d i n a v i a of G o t h e n b u r g was consulted by Kockums on the logistics involved in moving 6,120 cars on or off a vessel having 52,000 internal meters (about 170,612 feet) of roll. M a c G r e g o r claims operating costs have been minimized because the ship design obtains the maximum deadweight within parameters of seaworthy integrity and because of the reduction of cargo handling time in port.
MacGregor has contributed 13 separate items to the Madame Butterfly. These include the stern and side entry ramps, the six internal ramps, five deck covers and eight doors, and the fixed and hoistable car decks.