The Norwegian vessel Kvannøy is the world’s first fishing vessel to benefit from Humid Air Motor technology. Humid Air Motor is abbreviated to HAM. The purse seiner/trawler and factory vessel Kvannøy, which was built in 2002, has an advanced ship design and sophisticated propulsion technology. Examples are a reduction gearbox with two-step PTO, floating frequency, a large PTO/PTH shaft alternator/motor with a power boost function – where auxiliary engine power can be added to the propeller at peak requirements.