| 41. | In 2003, boats making more than 13, 000 trips through the waterway carried about 188 million long tons of cargo.
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| 42. | Deadweight tonnage was historically expressed in long tons but is now usually given internationally in tonnes ( metric tons ).
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| 43. | In the 1939-45 period the Royal Air Force ( RAF ) dropped 15, 696 long tons of bombs on Frankfurt.
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| 44. | In 1958 United States shipping magnate Daniel K . Ludwig broke the record of 100, 000 long tons of heavy displacement.
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| 45. | General cargo volume declined to 14 . 3 million long tons, which port officials said was in line with national trends.
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| 46. | The imperial system uses a stone of 14 lbs, a long hundredweight of 112 lbs and a long ton of 2240 lb.
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| 47. | In the period 1939 to 1945 the Royal Air Force dropped a total of 30, 025 long tons of bombs on Duisburg.
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| 48. | The Panama Canal was the conduit for 188 million long tons of cargo moved on more than 13, 000 trips in 2003.
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| 49. | The axle load is 15 t ( 15 long tons; 17 short tons ) for which the structures are to be designed.
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| 50. | A collier ( cargo ship carrying coal ) may hold 40, 000 long tons of coal and takes several days to unload.
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