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Yards Deliver Large American Liners Merchant Shiobuilding in 1931 aaaq)N THESE pages, 41 and for the ninth consecu- tive year, an at- tempt has been made to present an accur- ate informative rec- ord of steel ship- building, merchant type powered vessels of 100 feet in length and over and above 100 gross tons, in the United States during the calendar year 1931. The same plan in presenting these records has been fol- lowed from year to year. Insofar as pos- sible a complete list is given of vessels in this category’ that were completed or under construction in any stage during the preceding calendar year. For the year 1931, 94 vessels are so listed on pages 44 and 45. mation given for each _ selected ship, within the space limita- tions, has not only been care- fully chosen for its value in char- acterizing the vessel to the shipowner, naval 12 From the list of vessels completed during this period the more outstanding and distinctive have been selected for detailed description, one to a page, photograph and line plan. The 17 selected ships featured in the follow- ing pages, through sister ships, cover 32 of the 94 units listed on pages 44 and 45. By A. Hi. Jansson Editor, Marine Review Motive Power Compared--I wo Years Number Per Cent Types 1931 1930 1931 1930 Steam reciprocating coal burner 6 20 6.4 1574 Steam reciprocating oil burner. 16 16 ERY S Scag OPA | Steam turbine oil burner...... 26 15 De Boe eV 5 Diesel engine direct drive..... 31 40 Bo. 0.8 Diesel engine electric drive. ... 5 20 Bog ha Turbine electric oil burner... .. 10 18 10262: 13.9 Turbine electric coal burner... 0 1 0.0 OL/ MOtals eee 94 130 100.0 100.0 Recapitulating for Primary Power Number Per Cent Types 1931 1930 1931 1930 Steam—As primary power.... 58 70 Gert sO 0 Diesel—As primary power..... 36 60 O8.3 ' 46.2 Totals 94 130 100.0 100.0 Recapitulating for Power at Propeller Number Per Cent Types 1931 1930 1931 1930 Steam—Direct and gears...... 48 51 Sle eo. Diesel—Direct drive.......... 31 40 33208) 30.8 Electric—Steam and diesel.... 15 39 1$.9° 30.0 MOGNS (oor a 94 130 100.0 100.0 Recapitulating for Fuel Number Per Cent Types 1931 1930 1931 1930 Steam—Burning coal......... 6 21 6.41624 Steam—Burning fuel oil. ..... 52 49 DO OTe Diesel—Diesel oil as fuel...... 36 60 B83. 462 OCHS i era os 94 130 100.0 100.0 oil as fuel. illustrated with The infor- Analysis of Power and Gross Tonnage of Vessels Listed on Pages 44-45 Number of Total Total Average Average Type of Power Vessels Gross Tons Horsepower Gross Tons Horsepower Turbine Electric. 10 88,235 122,440 8824 12244 Turbine Gears... 26 246,539 277,155 9482 10660 Reciprocating... 22 19,035 24,800 865 1127 Diesel Electric... 5 1,848 2,425 370 485 Diesel Direct.... 31 48,567 39,490 1567 1274 Totals. 353% 94 404,224 466,310 4300 4961 MARINE REview—April, 1932 architect and marine engineer, but a spec- ial effort has been made to insure the greatest possible de- gree of accuracy. This gallery of ships there- fore represents a striking cross section of American — ship- building. In the nine years in which a simi- lar presentation has been made in MARINE REVIEW, no less than 221 steel merchant type vessels from riv- er craft to ocean lin- ers have been de- scribed and __illus- trated in this uniform manner. From year to year in this way it has also been possible to study by actual count the type and power of propelling machinery, the actual use of the internal combustion engine, the decline of coal and the increase of Since 1925 each year an analysis compared with the year before has been given covering these and other points. in thé calendar year 1924 there were 101 ves- sels listed as completed or under construction in that period. Of that number 69 or 68.3 per cent were using steam as primary power and 32 For instance, or 31.7 per cent were fitted with diesel as primary power. For the calendar year 1931, 94 vessels are listed (pages 44, 45), with steam as prim- ary power in 58 or 61.7 per cent