SHIPBOARD DAMAGE CONTROL, PERSONNEL PROTECTION, FIREFIGHTING AND CBR-D
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DAMAGE CONTROL MUSEUM
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Breathing Apparatus  
 
Life-Line
 
The Navy provided a woven steel wire life-line for use by firefighters. The uses of the line were numerous; while most of them were precautionary, firefighters often had to rescue a person that had been overcome by smoke or had slipped, fallen and was injured. The rescue was affected with the life-line as a means of hauling the injured person to safety. The life-line was indispensable for hauling a stricken person from a compartment, lowering a rescue party or equipment into a compartment and various other uses. The life-line was also used in shallow water diving. The life-line was 50 feet long by 3/16 inch in diameter, which was later changed to 3/8 inch in diameter. Each end had a stout steel snap hook for attaching to the “D” ring on the OBA or air-line harness. The line had maximum pliability and would slide freely around obstructions. The life-line was never secured around or to the waist. The life-line was attached to firefighters involved in tasks where they had to take more than ordinary risks. It was manned by a fellow shipmate who knew the emergency signals -- OATH -- so as to communicate with the wearer of the OBA or shallow water breathing apparatus. He would pay out the line off the coil with caution as tension was created; he then slackened the line, being careful not to allow it to become entangled. The following is the tending line code for OBA/diver emergency signals.
Number of
Pulls
Signal Meaning
1 O – O.K.
2 A – Advance
3 T – Take up slack
4 H – Help
Image of Life-Line

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