LR awards Approval in Principle to Seaspan Corporation for a next generation feeder with ammonia-pow… September 19, 2024 International Shipping, Feeder Operator, Shipping Line, Trending News LONDON : Lloyd’s Register (LR) has awarded Approval in Principle (AiP) to Seaspan Corporation for its innovative dual-fuel ammonia-powered next generation feeder ship design. The 3,100 TEU nominal vessel, measuring 198 m in length