Problems with Certified to 130 feet in one course, circa 1975-1980
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DSAT, a subsidiary of PADI, did the actual research and created the PADI RDP. The first copyright on my RDP is 1985.
The old Navy tables were 100/25.
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USN 2016
JamesBon92007
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I see that (on the NAUI) tables it was changed from 60 minutes to 55 and from 25 minutes to 22. OK by me.
If this worked (upload) my generic dive tables still have 60/60 and 100/25.
I would not want to attempt to make sense out of the PADI tables while underwater (or even above water).
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true 'dat, but we are talking about the recreational agencies, aren't we?
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- 20,485
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- Philadelphia and Boynton Beach
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- 1000 - 2499
Where did it all come from?
The post title, and post #1?
Bob DBF
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The tables in the manual were the old Navy tables, 60/60, 60 fpm ascent, no safety stop. The RDP came later, from the sounds not much later.
Bob
captain
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I was YMCA trained in 1970, my card says simply Scuba Diver. The recommended limit was 130 feet. The origin of the 130 foot limit is the US Navy. The Navy diving manual defined the suitability of the various types of gear used based on depth and time of the dive.
Below is the chart from the 1958 Navy diving manual using scuba. Notice scuba is shown as suitable for 60 to 130 feet for dives of 0 to 15 minutes and dives of 15 to 30 minutes. It also shows suitable for 130 to 200 feet for 0 to 15 minutes.
The Navy's scuba equipment of the time was single and double 72 cu/ft tanks and double 80 cu/ft tanks.
Civilian training organization simply picked the 130 foot limit but did not specify a time.
The 130 limit lived on but not for the original reason.The 130 foot limit had nothing to do with narcosis, that came later and was somehow used as a justification for it.
My friend Navy diver Bernie Campoli at 192 feet on air, Sealab I in 1964
Below is the chart from the 1958 Navy diving manual using scuba. Notice scuba is shown as suitable for 60 to 130 feet for dives of 0 to 15 minutes and dives of 15 to 30 minutes. It also shows suitable for 130 to 200 feet for 0 to 15 minutes.
The Navy's scuba equipment of the time was single and double 72 cu/ft tanks and double 80 cu/ft tanks.
Civilian training organization simply picked the 130 foot limit but did not specify a time.
The 130 limit lived on but not for the original reason.The 130 foot limit had nothing to do with narcosis, that came later and was somehow used as a justification for it.
My friend Navy diver Bernie Campoli at 192 feet on air, Sealab I in 1964
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