UFPE Recife: Shipbuilding Competitiveness What is CGT? Paul Stott July 2013 Gross Tonnage is: • • • • A measure of volume 1GT = 2.83 m3 Good for measuring the physical size of a ship Poor for measuring shipbuilding throughput and capacity 1 “TUN” = 138,000 GT 248,000 dwt ~ 9,700 dwt 6,350 GT Dwt GT CGT Explorer of the seas 9,600 138,000 136,118 MT Lania 248,000 138,000 40,829 MT Hesperides 9,750 6,347 10,368 Compensated Gross Tonnage is: • • • A non-dimensional comparative measure of newbuilding work content It is easy to calculate, based in coefficients published by OECD Source: OECD, Council Working Party on Shipbuilding, “Compensated Gross Ton (CGT) System”, 2007 (on blackboard) CGT = A(GTB) • CGT is Compensated Gross Tonnage • GT is Gross Tonnage • A&B are constants that vary by ship type (specified in the OECD reference above) Compensated Gross Tonnage The ships in the following slide have a similar GT but very different CGT GT CGT 120,000 120,000 100,000 100,000 80,000 80,000 60,000 60,000 40,000 40,000 20,000 20,000 - - Dry Bulk Dry Bulk Tanker Container 170,000 dwt LNG tanker Tanker Container LNG tanker Cruise ship Cruise ship 150,000 dwt 7,500 TEU 145,000 m3 100,000 GT