Deep Diving 108 feet w/ a single AL 80 (Air.) No redundancy.

[Storker]

I think a lot of it is learned helplessness.

I agree.

 

[Storker]

Guess it’s difficult to have non-survivor bias.

Yes, it is.

That doesnt preclude survivors reckongnizing survivor bias, though.

 

[Boston Breakwater]

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• Steelyeyes
• Oct 17, 2020

Looking back at my log I've done a few of those in the last couple of months. Our gas consumption is low and it's not uncommon to spend a few minutes taking pictures of a small wreck or something towards the bottom of the reef and still end up with a 70-90 minute dive on a single 80 with N32.

 

[Bierstadt]

No. Not unless I have a great buddy with alt air. I mean, I could, everyone could. But it's not how I dive, not how I gas plan, so FOR ME it'd be a pretty foolish thing to do. Ask me again in ten years.

 

[RyanT]

I've done 180' + dives on a single AL 80 on air. to quote @rhwestfall
QUOTE="rhwestfall, post: 9168407, member: 180653"]I knew little of what I do now....[/QUOTE]

I've learned a lot since then...

I now prefer the @tbone1004 rule, 1 cf of gas per 1 foot of depth.

 

[halocline]

At high tide the the wreck sits in 108fsw. It always amazed me that people would do this dive "Normally." on single aluminum 80's without any type of redundancy.
I always thought it was insane????

Another one of these threads, huh? I guess we're all a little bored with the pandemic.

Considering many many many thousands of recreational divers have done many many many thousands of dives to 100ft on AL80s for many many many years, and survived just fine, how is it that you think this behavior is "insane"?

Honestly if you're that uptight or self righteous about dive behavior, I just don't see how you can have any fun at all, what with everyone around you being insane.

Sorry for the rant, I'm just a little tired of the pedantry of some of these 'questions'. I won't bother you any more, apologies.

 

[scubadada]

I've done 180' + dives on a single AL 80 on air. to quote @rhwestfall
QUOTE="rhwestfall, post: 9168407, member: 180653"]I knew little of what I do now....

I've learned a lot since then...

I now prefer the @tbone1004 rule, 1 cf of gas per 1 foot of depth.[/QUOTE]
So you need a 133 to dive to recreational limits, geez

 

[StefinSB]

I was 40 m on a single AL80 yesterday. I bounced to 40 m then back to 30 m and gradually reduced depth to the end of the dive. Surfaced with 90 bar after 57 minutes for a 8.6 l per minute rate. My remaining time never dropped below 2 minutes and was back to 99 by the time I got back to around 15 m.

If I was going to stay at 40 m I would quickly run out of NDL but doing it on a single AL80 is not an issue.

This is just a normal dive.

So you bounced to 40m, were riding NDL, stayed for 57minutes underwater and surfaced with almost a half full AL80. Sure.

 

[Centrals]

What is the standard equipment for deep dive specialty course?

 

[dead dog]

So I guess you guys don't want to hear about my 220' dive on a single steel 72 in Palau in 1981?

HELL YEAH ! ! ! I want to hear about it.