Beautiful images Hamma
........those small width frozen river sections [as shown in the first image] must be a challenge to navigate on......what is the [ballpark] water speed?, and is wind an issue in these conditions?
I found the following from the WEB…………….
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Dalarö is a sister ship to Söderarm and Dalarö. She was built by the Riga Shipyard at Riga in Latvia, with equipment by Moen Slip at Kolvereid in Norway. She is 39.9 metres (131 ft) in length, with a beam of 10.3 metres (34 ft), a draught of 2.85 metres (9 ft 4 in), and a capacity of 500 passengers. Four Volvo diesel engines with a combined power of 1,800 horsepower (1,300 kW) give a speed of 12 knots (22 km/h; 14 mph).[
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I also see that Soderhamn is however powered by 4 Scania engines with the same 1800 HP total & understand the bottom line is cost of fuel per tonne of cargo [or people] shipped
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In Australia we have fleets of B-Double coal trucks each running 24/7...this could equate each engine to 750,000 km per year
First 500 HP Kenworths, then 650 HP Whites, then 780 HP Scania's & now 780 HP Volvos
So did the Scania engines show a financial advantage over the Volvo...sufficient to meet the conversion cost?.....or were both engines near interchangeable?...or is it a pollution issue/advantage?...Catalytic cleaning?
Derek