Seawing kite system gets ClassNK approval

Seawing kite system gets ClassNK approval

Kawasaki Kisen Kaisha (“K” LINE) and AIRSEAS SAS have received an Approval in Principle (AIP) from ClassNK for their automated kite system Seawing.

Seawing is a kite system which assists vessel propulsion by harnessing natural wind power through its dynamic flight. A simple switch launches or recovers the kite which unfolds, operates and refolds autonomously. The Seawing system collects and analyses meteorological and oceanic data in real-time, then adapts its flight to this information in order to optimise its performance as well as to ensure maximum safety.

ClassNK released its Guidelines for Wind-Assisted Propulsion Systems for Ships in September 2019 in order to contribute to the safe integrity and design of this technology and the ships that are installed with it. The AiP from ClassNK is based on these guidelines.

Obtaining the AIP marks the completion of the initial design related to the kite structure and controls. The next step is to further develop detailed engineering with the target of installation and operation on the first “K”LINE vessel.

Upon receiving the application from “K” Line and Airseas, ClassNK reviewed the basic design of the kite system in line with relevant international conventions, ClassNK rules, and the above-mentioned guidelines. Following its successful completion, ClassNK granted an AIP for the basic design of the kite system.

ClassNK will continue to support the smooth implementation of new technologies through its role as a third-party certification body.