Liquid war handling collisions8/15/2023 Seams, stuffing tubes and pipe lines will be opened over a considerable area, and on several types of light craft, shell or deck plating at some distance from theįigure 33-A. However, a large number of less apparent casualties will be present, and unless they are discovered and dealt with the ship may be lost through fire or progressive flooding. In this case the major damage forward will be obvious. This is to discover damage occasioned by shock and splinters, and to establish boundaries around the damaged area.Ĭonsider also the case of a torpedo hit similar to that diagrammed in figure 33-2. Investigation should cover all spaces along the path of the projectile, and include all systems and structures in every compartment immediately adjacent to B, and even to a depth of two or three compartments in all directions. 33-1), and passing forward and downward, explodes in compartment B. Consider the following example: A projectile or bomb strikes a vessel at A (see fig. All damage-control personnel should understand that damage is almost invariably more extensive than a cursory examination would indicate. Casualties may not be immediately apparent. He should be an intelligent and well-trained man, because his report will have an important bearing on the steps that are taken to localize and to overcome the damage.ģ3-3. He must be able to give information on damage which could result in destruction of the ship, such as fire and flooding, and on casualties that would interfere with limiting and repairing damage, such as the absence of light and the presence of smoke, fuel oil, wreckage and loose- stores. He can make a rapid survey of the damage. The first man to enter the area should therefore be equipped with rescue breathing apparatus and be accompanied by a tender. Another group should be trained and equipped to lookįor fires and to commence fire-fighting operations at once, and still other men should be detailed to examine bulkheads and frames and to make rapid estimates of their remaining strength and integrity.Īny damaged area may be on fire, and will be almost certain to contain asphyxiating, toxic or combustible gases. For example, electrician's mates should look for damaged electric circuits, especially those causing sparks. On large ships it is customary to have sub-groups of a repair party detailed to investigate specific items. Repair parties should therefore be organized and trained in the investigation phases of damage control. Ships have been lost, or have at least suffered unnecessary flooding merely because investigating personnel were rash and thoughtless in carrying out their duties. Investigations must be thorough, but they should be conducted with caution. They are symptoms of damage conditions, and prompt remedial actions may be necessary if the ship is to survive.ģ3-2. All of these things must be investigated thoroughly. There will, of course, be other signs of damage - A minor loss of power, a wisp of smoke, excessive warmth of a bulkhead, or slight leaking at a seam. The foregoing information is preliminary and superficial, but combined with reports from lookouts and other topside personnel it will locate the damage and give a general picture of its extent. Thus, a turret may report that it is entirely without power, the bridge may report that steering control has been lost, and Repair III may report that water is seeping through a certain bulkhead. A decided or progressive change in trim or list, as indicated by clinometers, will also divulge information.Īdditional information will come from gunnery and ship-control stations, and from roving patrols near the scene of the casualty. Heavy shock and whipping of the hull structure may indicate a major underwater explosion, although intense vibration will not always occur from such casualties on large vessels. The type of investigation required immediately after a ship has been hit depends upon many factors including (1) the size and type of munition causing the damage, (2) where it hit, and (3) whether it exploded inside or outside the ship.Ĭertain information as to the extent of a casualty will be available almost immediately.
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