Measurement of Vessels for the Panama Canal, 1938

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Page 20 - No. at the extreme limit of the length at the stern ; then, whether the length be divided according to the table into...
Page 22 - In ascertaining the tonnage of open ships, the upper edge of the upper strake of the shell plating is to form the boundary line of measurement, and the depths shall be taken from an athwartship line, extended from upper edge to upper edge of the said strake at each division of the length. DEDUCTIONS FROM THE GROSS TONNAGE TO ASCERTAIN THE NET TONNAGE (A) Deductions Allowed for All Vessels 39.
Page 20 - ... multiply by it the mean horizontal area, and the product will be the cubical contents of the space; divide this product by one hundred, and the quotient shall be deemed to be the tonnage of such space, and shall be added to the other tonnage of the...
Page 20 - ... multiply the quantity thus obtained by one-third of the common interval between the breadths, and the product shall be deemed the transverse area...
Page 3 - Tolls on merchant vessels, army and navy transports, colliers, tankers, hospital ships, supply ships, and yachts shall be based on net vessel tons of one hundred cubic feet each of actual earning capacity determined in accordance with the rules for the measurement of vessels for the Panama Canal, and tolls on other floating craft shall be based on displacement tonnage.
Page 28 - By the space occupied by the engine rooms is to be understood that occupied by the engine room itself and the boiler room, together with the spaces strictly required for the working of the engines and boilers, with the addition of the spaces taken up by...
Page 22 - The following spaces (enumerated below in sees. 1 to 11 of this article) shall be deducted from the gross tonnage in order to ascertain the net tonnage of vessels not propelled by engines, and no other spaces shall be deducted. These deductions will also be allowed for vessels propelled by engines, with additional deductions for vessels propelled by engines, listed under (B) article XII.
Page 19 - ... points of division, and also at the upper and lower points of the depth extending each measurement to the average thickness of that part of the ceiling which is between the points of measurement; number these breadths from above (ie numbering the upper breadth one, and so on down to the lowest breadth); multiply the second and fourth by four, and...
Page 18 - ... taken, find the transverse area of such ship at each point of division of the length as follows :—Measure the depth at each...
Page 21 - ... three inside breadths, namely, one at each end and the other at the middle of the length ; then to the sum of the end breadths add four times the middle breadth, and multiply the whole sum by one-third of the common interval between the breadths, the product will give the mean horizontal area of...

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