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Pusher Power for the Amazon Barge Trade
01 Jun 2005
Over the last two years, MANB&W Diesel AS of Denmark has won contracts to provide 19 engine and propulsion packages to Brazilian tug owners. Ten medium speed engines, five of type 6L23/30A-F and five of type 8L23/30A-F , were recently selected for a series of single screw pusher tugs under build at the Brazilian yard of Estaleiro Sao Joao forowner J F de Oliveira Navegacao Ltd .
The latest series of MAN B&W powered tugs follows an earlier series of six pusher tugs, three powered by single screw and three by twin screw propulsion packages of type 8L23/30-FKV for owner Transportes Bertolini Ltd.
Both series of tugs will be deployed in the specialised Amazon inland waterways transport system based on barges.
Soya beans, bauxite and trailers from the inland of Brazil and Bolivia are loaded onto barges and pushed via the Amazon river system to Santarem and Belem on the Atlantic coast.
In Santarem, the barge cargoes of soya and bauxite are transferred to overseas trading ocean going cargo vessels for export markets.
The engines for the Oliveira tugs will be operating on Heavy Fuel Oil (IF180) and will be driving fixed pitch propellers via reverse/reduction gearboxes.
The Bertolini tugs, also operating on HFO IF180, will use complete MAN B&W Alpha propulsion systems with controllable pitch propellers and Alphatronic control systems.
MJ Information No: 207108
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