K Line Gets AIP for LNG-Fuelled Ore Carrier Concept Design 5 August 2019 The Approval in Principle (AIP) for the concept design of an LNG-fuelled ore carrier was received from DNV GL.Author: Capt. Johnhttps://worldmaritimenews.com/archives/281143/k-line-gets-aip-for-lng-fuelled-ore-carrier-concept-design/