Container ships are getting larger, and many existing ship-to-shore cranes need increased lift height and boom outreach to service them. But extending the outreach by more than a small amount is not easy, and it often requires floating cranes or large shore-based cranes that impact wharf operations. In this paper, Kenton Lee introduces a concept rig and procedure Liftech developed to extend a container crane boom up to approximately 8 meters, without a land-based or floating crane and without removing the boom.
