TROLLIUS SOYA measures approximately 96.55 metres in length, 15.00 metres in breadth and 10.05 metres in depth, with a draught of 4.10 metres and a tonnage of 2,000 GT or more (Japanese Domestic Gross Tonnage). She can carry up to 21 trucks (8t) or 53 cars, 550 passengers and 18 crew. Propulsion comes from two Daihatsu 6DCM-32e main engines in a twin-engine, twin-screw, twin-rudder arrangement, each rated at 2,648 kW, giving a maximum speed of around 19.45 knots.

According to Naikai Zosen, the vessel features a bulbous bow fitted with ice knives to counter drift ice in winter. She is also equipped with a lift connecting the car deck to the passenger deck, improving accessibility for elderly passengers and those with reduced mobility.

TROLLIUS SOYA is scheduled for delivery in mid-December 2026 and will enter service between the islands of Rishiri and Rebun and Wakkanai, Hokkaido.

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