This report briefly summarizes the technical report and appendices. The study described the demand for shipping of heavy lift units, defined as over 100 tons, or 80' length, or 15' width. Small ships for lift, float and roll cargo handling, conversions of general cargo liners by adding lift derricks and midbodies, and tugs pulling barges for roll on-off were designed and costs estimated. Regulatory and subsidy constraints expected were defined. Voyages of ten vessels carrying typical shipments were simulated to evaluate performance of alternative systems. Converted U.S. liners appeared to be most profitable, if not diverted far, providing the desired service except for the largest units. Other craft are also evaluated.
Feasibility of United States Flag Heavy Lift Shipping. Volume I. Summary
1977
29 pages
Report
No indication
English
Marine & Waterway Transportation , Cargo ships , Hoisting , Feasibility , United States , Demand(Economics) , Classifications , Derricks , Barges , Tugboats , Steamships , Conversion , Cost effectiveness , Constraints , Marine transportation , Heavy lift systems , Heavy lift shipping , United States flag ships
NTIS | 1976
LOG OFF - Flag states must lead substandard shipping fight
Online Contents | 2004