Eric Sedletzky
Contributor
The air 2 style alternate second stage came in in the early to mid 80’s I think. I was given two sets of early to mid 80’s Scubapro MK5/109’s and both sets had early air 2’s on them. They were square in shape. These sets also came with original first generation bright orange SP stab jackets, so I know this stuff was old.Just so we are all on the same page...Bob DBF, to clarify, what I am calling a "safe second" {Atomic Aquatics??} or "Air II" {ScubaPro} is a regulator on the end of the BCD inflate/deflate hose in lieu of just the mouthpiece to manual inflate. This is the one you use and hand over your primary reg to the diver in need. What I am calling an "octo" is a second complete reg usually colored yellow and having a yellow hose clipped in the "triangle" {PADI}.
I am curious to know when these two different devices came into play...I know the "Octo" was used in 1989 for sure because that is the first time I saw one. I don't believe the hose or face plate on the reg was yellow though, I cant remember. It appears that the "safe second" BCD mounted reg is only a few years old...is that correct???
Stuartv, are you using a "safe second" on your bcd or an "octo"????
I have no idea about the training back then, if they accounted for the new style gear or not?
Edit: I just saw Bob’s post about the air 2 coming out in 1979
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