So they save $300.000 a year? How much did cargo space did they loose in doing it?
You do not lose the capacity. they just take a ordinary design and make it a bit rounder.
it is like to compare the Volvo 740 and Volvo C70!
everything is written in the article.
Outline of the energy saving car carrier - City of St. Petersburg:
launched - 11.09.2010
delivered - 22.12.2010
builder - Kyokuyo Zosen K.K., Chofu, Japonia
operator and ship manager - Nissan Motor Car Carrier, Japonia
flag - Panama
LOA - 139.98 m
LBP - 131.00 m
B - 22.40 m
H - 24.45 m
T - 6.50 m
GT - 21 143
deadweight - 5000 t
capacity - 2000 standard cars
decks: 8, including one hoistable
main propulsion power - 12 000 kW (16 316 KM)
service speed - 16,9 / 18.50 knots
max speed - 21.22 knots