Measurement of vessels for the Panama canal (1913)
Johnson, Emory R. (Emory Richard), 1864-1950, United States. War Dept · Washington, Govt. Print. Off. · leaf 54
r, however, differs from the turret-deck vessel in that it aims to provide absolutely clear decks without deck erections and witha rounded form which breaks the force of the sea. It was found that it is difficult for the crewto man such a deck in heavy seas, that the hatchways without coamings… … MEASUREMENT OF VESSELS FOR PANAMA CANAL. 27 produced as the vessel thumps against head seas. Relatively few whalebacks are in opera-tion while the turret steamers, on the contrary, are rapidly increasing in number. The trunk steamer is another special type of bulk carrier without a lower deck. Its…