Oceanographical observation vessel for Imperial Japanese Government, built by Harima Shipbuilding and Engineering Co; length oa 241 ft 7 in.; breadth molded 34 ft 9 in.; depth molded to upper deck 16 ft 9 in.; propelled by two Sinko, 6-cyl single acting, 4-stroke, trunk piston, airless injection Diesel engines, each capable of developing 600 bhp at 285 rpm; equipped with comprehensive range of navigational and oceanographical apparatus.
Twin-screw motorship "ryohu maru,"
Shipbldr Mar Engine-Bldr
Shipbuilder and Marine Engine-Builder ; 46 , n 357
1939
5 pages
1 Supp sheet
Article (Journal)
English
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