![Cut through of ships shows machinery arrangemen](https://www.marinelog.com/wp-content/uploads/2021/06/smartprop-300x225.jpg)
Wärtsilä and RINA unveil novel propulsion concept
In a challenge to traditional ship design thinking, Wärtsilä and classification society RINA have come up with a propulsion machinery arrangement that, they say, offers a highly efficient, future-proof alternative to the