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The Reverse Stopping Ability of Supertankers

  • H. Tani (a1)


The question of the reverse stopping ability of a ship is well known but is yet a fresh problem. Until about twenty years ago the distance required to stop a.ship from a service sea speed ahead by using her engines full astern with helm midships was comparable to her advance while stopping with helm hard-over. However, at present this head reach of a 100,000- d.w. supertanker may range from 10 L to 15 L while her advance with maximum helm angle might only be from 5 L to 7 L. At first sight this appears to be a surprising phenomenon, but it is little wonder since the mass of the ship and hence the inertia increases with the cube of her length, while the total resistance of her underwater hull only with the square of her length.

The question of stopping very large supertankers is one of some significance both from the viewpoint of preparing to pick up a pilot, anchoring, berthing, or similar everyday operations and of avoiding collision or grounding in an emergency.



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1Horne, L. R. (1944) The stopping of ships, Trans, of N.E. Coast inst, of Engineers and Shipbuilders, 61.
2Robinson, S. M. (1916). Stopping, backing and turning of ships, J. of Amer. Soc. of Naval Engineers 28, 58.
3Gold, D. (1941). Stopping and backing trials of a destroyer, J.A.S.N.E., 53, 76.
4Kinoshita, M., Nakajima, Y. (1951). On the motion of a vessel and the change of the thrust and torque acting on the shafts during starting, stopping or backing, J. of Soc. of Naval Architects of Japan, 85, 167.
5Chase, H. J., Ruiz, A. L. (1951). Theoretical study of the stopping of ships, Trans, of Soc. of Naval Architects and Marine Engineers, 59, 811.
6Hewins, E. F., Chase, H. J., Ruiz, A. L. (1950). The backing power of gearedturbine- driven vessels, Trans. S.N.A.M.E., 58, 261.
7Watanabe, Y. (1934). On the calculation of the head reach and the time to stop of a ship during backing, J. oJS.N.A.J., 55 105.
8D'Arcangelo, A. M. (editor) (1957). Guide to the selection of backing power, T.R. Bulletin, no. 3–5, S.N.A.M.E.
9Nordström, H. F. (1948). Screw propeller characteristics, Swedish State Tank Publication, no. 9.
10Yazaki, A., Okumoto, A. (1959). Open-water backing tests with modern fivebladed propeller models, TYPE-AU 5, Transportation Technical Research Institute, T.N. no. 18.
1172nd Research Committee (1966). Study on backing power of geared-turbine-driven vessels, Shipbuilding Research Assoc. of Japan, Report no.57.
12Künzel, H., Henschke, W., Gutsche, F., Schroeder, G. (1963). Freifahrversuche an Propellem mit festen und verstellbaren Flügeln ‘voraus’ und ‘rückwärts’, Schiff bauforschung, 2, 146.
13Meyne, K. J. (1964). Umsteuereigenschaften von Schiffspropellern Schiff und Hafen, 5, 434.
14Nordström, H. F. (1931). A Study on the Interaction between the Engine, the Screw Propeller, and the Ship, Proc. R. Sw. Inst. Eng. Res., 115.
15Conn, J. F. (1934–5). Backing of propeller, Trans. Inst. of Engineers and Shipbuilders tn Scotland.
16Tani, H. (1966). On the reverse stopping of ships, J. of S.N.A.J., 120, 185.

The Reverse Stopping Ability of Supertankers

  • H. Tani (a1)


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