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terships, the 16 selected vessels represent 27 out of the 67 listed. In other words, principal dimensions, characteristics, machinery, and equipment particulars are thus given for 27 vessels that were completed in American ship- yards durine 1933. The infor- mation given be- cause of its uni- formity makes it possible to read- ily compare ves- sels of different types and sery- ices or to make comparisons be- tween vessels of Similar types de- scribed in the same manner in the previous shipbuilding is- sues of MARINE REVIEW. Vessels of many different types are in- cluded. In the eleven years that a similar pre- sentation has been made some 254, merchant type, steel hull, powered vessels have been il- lustrated and described. In the accompanying tables an analysis has been made of the 67 vessels listed for type, propelling machinery, size and fuel used. This analysis shows, for instance, that the diesel engine was used as primary power in 43 and that steam was used as primary power in 24. In other words, considering for the moment only the number of units, for primary power, steam was used in 35.8 per cent and diesel in 64.2 per cent. For 1932 these figures were re- spectively 49.3 per cent and 50.7 per cent and in 1931 61.7 per cent and 38.3 per cent. The PPASSENGER-OCEAN | 5 _| FREIGHTER—OCEAN PASSENGER—COAST ee ee reason for this apparent rapid increase in the use of diesel as primary power is because of the increasing proportions of smaller vessels in each succeeding year. If propelling power is considered on the basis of tonnage the condi- tion is entirely reversed. No less than 84.5 per cent of the ton- nage represent- ed by the 67 vessels were fit- ted with steam propelling pow- er, while only 15.5 per cent of the tonnage was fitted with diesel primary propel- ling power. Again it will be noticed that the total steam horsepower in 24 units is 121,100 and that the total horsepower in the 43 vessels fitted with diesel engines is 35,680, or 77.2 per cent for steam and 22.8 per cent for diesel. It is clear form the present analysis that the tendency to use diesel power in place of steam in the lesser powers continues. In not a single instance in the 67 vessels, however, was the diesel engine used in the larger powers. About the largest single diesel engine used for power in any vssel listed was 1200 brake horsepower. Coal as fuel has practically disappeared. Only one vessel has been so equipped. The number of steam reciprocating units is steadily declining being 14.9 per cent for 1983 compared with 21.4 per cent for 1932; 23.4 per cent for 1931; and 27.7 per cent for 1930. Distinctive Ships—Where To Find Them Passenger Ships Name and Service Peten, Ocean, Passenger, Freight Santa Elena, Ocean, Passenger, Freight Washington, Ocean, Passenger, Freight Freighters Dolomite No. 1, Lakes, Canals, Coastwise Towboats Bob Gresham, Rivers Huntington, Harbor Tom Sawyer, Western Rivers Turecamo Girls, Harbors Y. T. 119, (Navy), Harbors Special Types Name and Service Arbutus, Lighthouse Tender Dahlia, Lighthouse Tender Lilac, Lighthouse Tender Wistaria, Lighthouse Tender Dredges Burgess, Western Rivers Ferries Delmarva, Passenger, Automobiles, Bays Tankers Timothy B. O’Connell, Harbors, Bays See Pages 36-37 for Complete Shipyard Record MARINE REview—April, 1934 13