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Chief strategy officer, Cobus Rossouw, says that the new tankers will set new standards in terms of energy efficiency and load carrying capacity.
He reveals that the new vessels’ fuel efficiency has been made possible by their sophisticated “dual Z-drive” rudder propellers, developed by global propulsion specialist Veth, which is based in the Netherlands. “In the Veth system, the rudders and propellers form a single unit. Compared to older drive systems, this system requires less fuel and maintenance. Operating data from the main engines - such as fuel consumption, position, speed, exhaust temperature, load and speed - will be sent online to the control centre.”
Another feature of these new tankers, Rossouw says, is that the ships’ hulls are reinforced with increased protection against collision in the cargo areas, using a special design feature called “Schelde skin reinforcement”. The hull of Imperial Gas 92 was built in Plock, Poland, and that of Imperial Gas 93 at MD Constructions in Rotterdam in the Netherlands.