151:
309:
31:
260:
290:
332:
105:
246:
of 1922. "It is the displacement of the ship complete, fully manned, engined, and equipped ready for sea, including all armament and ammunition, equipment, outfit, provisions and fresh water for crew, miscellaneous stores, and implements of every description that are intended to be carried in war,
123:
The draft observed at each set of marks is averaged to find a mean draft. The ship's hydrostatic tables show the corresponding volume displaced. To calculate the weight of the displaced water, it is necessary to know its density. Seawater (1,025 kg/m) is more dense than fresh water
194:
displacement and loaded displacement have almost identical definitions. Full load is defined as the displacement of a vessel when floating at its greatest allowable draft as approved by the load line assigning authority which is either the flag state (USCG etc) or a
72:
Ship displacement varies by a vessel's degree of load, from its empty weight as designed (known as "lightweight tonnage") to its maximum load. Numerous specific terms are used to describe varying levels of load and trim, detailed below.
308:
150:
633:
289:
404:
259:
203:"). Warships have full load condition established through the Naval design process, and are exempt from commercial requirements laid out by flag state laws.
743:
705:
216:(LDT) is defined as the weight of the ship excluding cargo, fuel, water, ballast, stores, passengers, crew, but with water in boilers to steaming level.
61:
by the ship, then converting that value into weight. Traditionally, various measurement rules have been in use, giving various measures in
622:
602:
583:
560:
736:
124:(1,000 kg/m); so a ship will ride higher in salt water than in fresh. The density of water also varies with temperature.
649:
1172:
771:
701:
430:
379:
977:
168:
are destroyers of comparable size, but because the latter is more heavily loaded, it sits lower, displacing more water.
956:
120:
sides forward, midships, and astern. These marks allow a ship's displacement to be determined to an accuracy of 0.5%.
116:. This is accomplished by means of its "draft marks". A merchant vessel has three matching sets: one mark each on the
1177:
729:
318:
curves. Lines 4 and 5 are used to convert from mean draft in meters to displacement in tonnes (table in
Spanish).
877:
1162:
645:
54:
673:
243:
155:
30:
919:
823:
229:
is the ship's displacement "with all outfit, and two-thirds supply of stores, ammunition, etc., on board."
200:
196:
1167:
131:
have been available since the 1950s to aid in these calculations. Presently, it is done with computers.
104:
960:
924:
828:
818:
300:
58:
188:
and such other items necessary for use on a voyage. These bring the ship down to its "load draft".
1053:
951:
903:
345:
162:
117:
1115:
37:, by showing how low a ship is sitting in the water, make it possible to determine displacement.
813:
752:
618:
598:
579:
556:
424:
350:
776:
337:
792:
331:
1038:
982:
766:
689:
572:
108:
Shipboard stability computer programs can be used to calculate a vessel's displacement.
1156:
1048:
1043:
872:
355:
93:
898:
808:
315:
113:
17:
657:
882:
89:
1136:
1101:
1063:
327:
296:
128:
34:
242:, also known as "Washington displacement", is a specific term defined by the
172:
There are terms for the displacement of a vessel under specified conditions:
112:
The process of determining a vessel's displacement begins with measuring its
1126:
1096:
844:
184:
is the weight of the ship including cargo, passengers, fuel, water, stores,
62:
1141:
1091:
1086:
1081:
1076:
139:
1131:
1110:
1106:
1071:
867:
360:
185:
85:
50:
721:
694:
Papers
Relating to the Foreign Relations of the United States: 1922
1120:
149:
135:
103:
66:
29:
725:
405:"A Guide to Understanding Ship Weight and Tonnage Measurements"
76:
Ship displacement should not be confused with measurements of
674:"Trim and Stability Information for Drydocking Calculations"
53:. As the term indicates, it is measured indirectly, using
617:(4th ed.). Centreville, MD: Cornell Maritime Press.
380:"Ship Tonnage Explained - Displacement, Deadweight, Etc"
247:
but without fuel or reserve boiler feed water on board."
555:(Paperback ed.). Oxford: Oxford University Press.
84:
typically used for commercial vessels and measured by
1062:
1031:
995:
970:
944:
937:
912:
891:
860:
853:
837:
801:
785:
759:
299:having his famous bath, the birth of the theory of
571:
707:Proceedings of the United States Naval Institute
690:"Conference on the Limitation of Armament, 1922"
672:MLCPAC Naval Engineering Division (2005-11-01).
613:Turpin, Edward A.; McEwen, William A. (1980).
536:Conference on the Limitation of Armament, 1922
737:
134:Displacement is usually measured in units of
8:
578:. Centreville, Md: Cornell Maritime Press.
574:Stability & Trim for the Ship's Officer
523:United States Naval Institute, 1897. p 809.
411:. Archived from the original on 29 May 2011
57:, by first calculating the volume of water
1012:
941:
857:
744:
730:
722:
531:
529:
899:Panama Canal/Universal Measurement System
597:. Cambridge, Md: Cornell Maritime Press.
1022:
1007:
487:Chapman Great Sailing Ships of the World
1017:
650:"Definitions, Tonnages and Equivalents"
510:
508:
371:
255:
422:
553:Oxford Companion to Ships and the Sea
498:
496:
7:
656:. United States Navy. Archived from
444:
442:
440:
615:Merchant Marine Officers' Handbook
551:Dear, I.C.B.; Kemp, Peter (2006).
25:
688:United States of America (1922).
595:American Merchant Seaman's Manual
696:. Vol. 1. pp. 247–266.
330:
307:
288:
258:
710:. United States Naval Institute
634:"Nomenclature of Naval Vessels"
265:A floating ship's displacement
1:
772:Length between perpendiculars
702:United States Naval Institute
514:Department of the Navy, 1942.
403:Dinsmore, Ben (16 May 2011).
489:. Hearst Books. p. xix.
957:Twenty-foot equivalent unit
676:. United States Coast Guard
593:Hayler, William B. (2003).
570:George, William E. (2005).
1194:
904:Thames measurement tonnage
485:Otmar Schäuffelen (2005).
978:Builder's Old Measurement
878:Compensated gross tonnage
824:Load line (Plimsoll Line)
502:Military Sealift Command.
429:: CS1 maint: unfit URL (
646:Military Sealift Command
632:Navy Department (1942).
466:Turpin and McEwen, 1980.
199:(and designated by its "
69:are more commonly used.
1054:Metacentric height (GM)
777:Length at the waterline
244:Washington Naval Treaty
920:Gross register tonnage
197:classification society
169:
109:
38:
1013:Standard displacement
961:Intermodal containers
640:. United States Navy.
475:George, 2005. p. 262.
457:George, 2005. p. 465.
240:Standard displacement
234:Standard displacement
153:
107:
55:Archimedes' principle
33:
1173:Nautical terminology
925:Net register tonnage
829:Under keel clearance
154:In this 1940 photo,
47:displacement tonnage
1023:Normal displacement
1008:Loaded displacement
448:George, 2005. p. 5.
227:Normal displacement
221:Normal displacement
182:Loaded displacement
176:Loaded displacement
18:Loaded displacement
1018:Light displacement
952:Deadweight tonnage
654:MSC Ship Inventory
346:Naval architecture
295:Greek philosopher
214:Light displacement
208:Light displacement
170:
118:port and starboard
110:
39:
1178:Ship measurements
1150:
1149:
1111:§ Neopanamax
1092:Handymax/Supramax
991:
990:
933:
932:
753:Ship measurements
409:The Maritime Site
351:Hull (watercraft)
49:of a ship is its
16:(Redirected from
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732:
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638:history.navy.mil
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538:. Ch II, Part 4.
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400:
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391:
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340:
338:Transport portal
335:
334:
311:
292:
262:
127:Devices akin to
21:
1193:
1192:
1188:
1187:
1186:
1184:
1183:
1182:
1163:Water transport
1153:
1152:
1151:
1146:
1058:
1027:
987:
966:
929:
908:
887:
849:
833:
797:
781:
755:
750:
713:
711:
700:
687:
679:
677:
671:
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661:
644:
631:
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612:
605:
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586:
569:
563:
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336:
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263:
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210:
178:
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102:
28:
23:
22:
15:
12:
11:
5:
1191:
1189:
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1155:
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1129:
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1079:
1074:
1068:
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1056:
1051:
1046:
1041:
1039:Inclining test
1035:
1033:
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1026:
1025:
1020:
1015:
1010:
1005:
999:
997:
993:
992:
989:
988:
986:
985:
983:Moorsom System
980:
974:
972:
968:
967:
965:
964:
954:
948:
946:
939:
935:
934:
931:
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928:
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909:
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906:
901:
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870:
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803:
799:
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796:
795:
789:
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783:
782:
780:
779:
774:
769:
767:Length overall
763:
761:
757:
756:
751:
749:
748:
741:
734:
726:
720:
719:
698:
685:
669:
642:
629:
623:
610:
603:
590:
584:
567:
561:
546:
543:
541:
540:
525:
516:
504:
492:
477:
468:
459:
450:
436:
395:
370:
368:
365:
364:
363:
358:
353:
348:
342:
341:
325:
322:
321:
320:
313:
306:
304:
294:
287:
285:
283:must be equal.
278:
269:
264:
257:
253:
250:
249:
248:
235:
232:
231:
230:
222:
219:
218:
217:
209:
206:
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189:
177:
174:
165:Abel P. Upshur
147:
144:
101:
98:
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
1190:
1179:
1176:
1174:
1171:
1169:
1166:
1164:
1161:
1160:
1158:
1143:
1140:
1138:
1137:VLCC and ULCC
1135:
1133:
1130:
1128:
1125:
1122:
1119:
1117:
1114:
1112:
1108:
1105:
1103:
1100:
1098:
1095:
1093:
1090:
1088:
1085:
1083:
1080:
1078:
1075:
1073:
1070:
1069:
1067:
1065:
1061:
1055:
1052:
1050:
1049:Angle of loll
1047:
1045:
1042:
1040:
1037:
1036:
1034:
1030:
1024:
1021:
1019:
1016:
1014:
1011:
1009:
1006:
1004:
1001:
1000:
998:
994:
984:
981:
979:
976:
975:
973:
969:
962:
958:
955:
953:
950:
949:
947:
943:
940:
936:
926:
923:
921:
918:
917:
915:
911:
905:
902:
900:
897:
896:
894:
890:
884:
881:
879:
876:
874:
873:Gross tonnage
871:
869:
866:
865:
863:
859:
856:
852:
846:
843:
842:
840:
836:
830:
827:
825:
822:
820:
817:
815:
814:Moulded depth
812:
810:
807:
806:
804:
800:
794:
791:
790:
788:
784:
778:
775:
773:
770:
768:
765:
764:
762:
758:
754:
747:
742:
740:
735:
733:
728:
727:
724:
709:
708:
703:
699:
695:
691:
686:
675:
670:
660:on 2007-02-05
659:
655:
651:
647:
643:
639:
635:
630:
626:
624:0-87033-056-X
620:
616:
611:
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604:0-87033-549-9
600:
596:
591:
587:
585:0-87033-564-2
581:
576:
575:
568:
564:
562:0-19-920568-X
558:
554:
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356:Hydrodynamics
354:
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349:
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344:
343:
339:
333:
328:
323:
317:
310:
305:
302:
298:
291:
286:
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277:
274:and buoyancy
272:
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261:
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245:
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225:
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99:
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94:gross tonnage
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87:
83:
79:
74:
70:
68:
64:
60:
56:
52:
48:
44:
36:
32:
27:Ship's weight
19:
1168:Shipbuilding
1003:Displacement
1002:
712:. Retrieved
706:
693:
678:. Retrieved
662:. Retrieved
658:the original
653:
637:
614:
594:
573:
552:
545:Bibliography
535:
519:
486:
480:
471:
462:
453:
413:. Retrieved
408:
398:
387:. Retrieved
383:
374:
301:displacement
279:
275:
270:
266:
239:
226:
213:
191:
181:
171:
164:
161:, left, and
157:
133:
126:
122:
111:
81:
77:
75:
71:
46:
43:displacement
42:
40:
1123:(Qatar-max)
892:Specialized
883:Net tonnage
415:14 February
384:GG Archives
316:hydrostatic
146:Definitions
129:slide rules
100:Calculation
90:net tonnage
35:Draft marks
1157:Categories
1102:Malaccamax
714:2008-03-24
680:2008-03-24
664:2008-03-24
389:2019-01-14
367:References
297:Archimedes
158:Aaron Ward
1127:Seawaymax
1097:Handysize
1032:Stability
861:Worldwide
845:Air draft
819:Freeboard
314:A ship's
201:load line
192:Full load
140:long tons
65:. Today,
63:long tons
59:displaced
1142:Yamalmax
1087:Chinamax
1082:Capesize
1077:Baltimax
938:Capacity
704:(1897).
425:cite web
324:See also
82:capacity
1132:Suezmax
1116:PĂ©niche
1107:Panamax
1072:Aframax
971:Archaic
945:Current
913:Archaic
868:Tonnage
786:Breadth
361:Tonnage
252:Gallery
186:dunnage
86:tonnage
1064:Limits
996:Weight
854:Volume
838:Height
760:Length
621:
601:
582:
559:
136:tonnes
78:volume
67:tonnes
51:weight
1121:Q-Max
809:Draft
802:Depth
114:draft
1109:and
1044:List
793:Beam
619:ISBN
599:ISBN
580:ISBN
557:ISBN
431:link
417:2018
163:USS
156:USS
92:and
41:The
138:or
80:or
45:or
1159::
692:.
652:.
648:.
636:.
528:^
507:^
495:^
439:^
427:}}
423:{{
407:.
382:.
142:.
96:.
88::
963:)
959:(
745:e
738:t
731:v
717:.
683:.
667:.
627:.
609:.
607:.
588:.
565:.
433:)
419:.
392:.
280:b
276:F
271:p
267:F
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
