Actually, it was pretty well known that diving a single steel 72, it was very difficult to get into a decompression problem at sport diving depths. If my memory is correct, 60 feet for 60 minutes was a no-decompression limit we all memorized. A single steel 72 (which without the "+" rating, would only give about forty minutes at 60 feet to most divers. (I just got out my NAUI Dive Tables, and confirmed this statement; the NAUI Dive Tables 1990 say the NDL is 55 minutes, with a 5 minute stop when at 60 feet for 60 minutes, but this 60 feet for 60 minutes NDL was the rule of thumb for diving, taken from the 1958 and 1970 U.S. Navy Diving Tables.)And a watch and what, a wrist mounted depth gauge? Tables in the head, just a time limit planned?
Most of us in the Oregon dove shallower, say 40-50 feet, which allowed more no-decompression time and further reduced the potential that a single steel 72 could get a diver in decompression trouble on a single dive.
SeaRat
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