Chapter 5 provides information for maintaining a Command Diving Log and
personal diving log and reporting individual dives to the Naval Safety Center. In
addition to these records, every Navy air dive may be recorded on a diving chart
similar to Figure 9-1. The diving chart is a convenient means of collecting the dive
data, which in turn will be transcribed in the dive log. Diving Record abbreviations
that may be used in the Command Diving Log are:
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LS - Left Surface
-
RB - Reached Bottom
-
LB - Left Bottom
-
R - Reached a stop
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L - Left a stop
-
RS - Reached Surface
-
TBT - Total Bottom Time (computed from leaving the surface to leaving the
bottom)
-
TDT - Total Decompression Time (computed from leaving the bottom to
reaching the surface)
-
TTD - Total Time of Dive (computed from leaving the surface to reaching the
surface).
Figure 9-2 illustrates these abbreviations in conjunction with a dive profile.
FIGURE 9-1 Air Diving Chart.
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FIGURE 9-2 Graphic View of a Dive with Abbreviations.
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