Japanese classification society ClassNK has released new Guidelines for Wind-Assisted Propulsion Systems for Ships.
It says it is a response to increasing industry investment in new technology now being used to meet stringent environmental regulations.
The guidelines are particularly aimed at vessels with large kite sails or Magnus effect rotating cylinders.
In addition to verifying structural strength, outlining methods for proving structural integrity of strength members, and utilizing calculation methods for load amounts, the guidance will provide class notations for ships whose equipment is designed and installed in line with the guidelines.
“Once wind was the main way of propelling ships – and now technology utilizing wind is emerging yet again to energize ships’ environmental performance,” says ClassNK’s technical director, Hayato Suga.
“With a variety of concepts for wind-assisted propulsion systems now in operation, we have materialized our expertise to minimize potential risks by their installations to hull structure, crew, and surrounding environment.
“To promote the safety and soundness of designs applying wind-assisted propulsion system, we will keep on updating our guidelines in line with further technology progress as well as providing the certification on individual systems or concepts.”
The Guidelines for Wind-Assisted Propulsion Systems for Ships are available to download free of charge via ClassNK’s website at www.classnk.com .