Virginian diver dead at 190 feet - Roaring River State Park, Missouri

[Manatee Diver]

In the local cave country scuttlebutt someone pointed out Eric's Linkedin page, I don't know how accurate it is because it probably hasn't been updated due to missing full cave.

But you have sidemount, intro cave, and cavern done Nov 2020. And then Air Dil CCR, likely sidewinder in Mar 2021. He appears to have been doing dry caving since at least 2016, probably earlier as he has some undated NSS certs.

 

[Al Stevens]

https://www.joplinglobe.com/news/local_news/cave-diver-dies-at-roaring-river/article_241d12c8-4cd5-11ed-b0d2-134f7b1a749a.html

Reports:

KISS Rebreathers CEO and head diver, Mike Young, said a preliminary Missouri Highway State Highway Patrol investigation revealed that Hahn’s personal air tank contained an inappropriate amount of oxygen, which can lead to the type of seizure Hahn is suspected to have experienced in the water.

Please be vigilant and safe out there.

 

[rx7diver]

There aren't a ton of routine reasons to offboard dil on CCR. ...

Both the Dive Rite Optima CM eCCR and the Triton mCCR, for example, are meant to operate with offboard dil.

rx7diver

 

[Marie13]

Both the Spirit (my CCR) and the Sidewinder have off board dil.

 

[Marie13]

With all the CCRs with off board dil, are their formal procedures for switching/hooking up? Sort of like how I was taught to do the full gas switch procedure for a stage bottle even on the surface.

Gus said in the video addressing this incident that on his Spirit, which he has more dives on, everything hooks up on the left. On his Sidewinder, it’s split between both sides. So he hooked up the bottle with air dil rather than the trimix one, as the air dil was on his left. Trimix was on his right.

 

[grantctobin]

Gus said in the video addressing this incident that on his Spirit, which he has more dives on, everything hooks up on the left. On his Sidewinder, it’s split between both sides. So he hooked up the bottle with air dil rather than the trimix one, as the air dil was on his left. Trimix was on his right.

Which is asinine to begin with…

 

[Manatee Diver]

So he hooked up the bottle with air dil rather than the trimix one, as the air dil was on his left.

Why would he be carrying air dil at all?

The whole thing that the SW has over other sidemount CCRs is that you can have truly redundant bailout. Having one filled with air and one filed with trimix doesn't make sense. Last thing you want in an emergency is to go from a mix with an END of less than 100ft to air.

If it is for cost reasons, well he nearly died over a $100 fill. For deco reasons, why not carry a nitrox stage with a QC6 leaving it at 100ft?

 

[grantctobin]

Why would he be carrying air dil at all?

The whole thing that the SW has over other sidemount CCRs is that you can have truly redundant bailout. Having one filled with air and one filed with trimix doesn't make sense. Last thing you want in an emergency is to go from a mix with an END of less than 100ft to air.

If it is for cost reasons, well he nearly died over a $100 fill. For deco reasons, why not carry a nitrox stage with a QC6 leaving it at 100ft?

Let’s not mistake Marie13, who is talking about Gus, with Eric please.

 

[Marie13]

Why would he be carrying air dil at all?

The whole thing that the SW has over other sidemount CCRs is that you can have truly redundant bailout. Having one filled with air and one filed with trimix doesn't make sense. Last thing you want in an emergency is to go from a mix with an END of less than 100ft to air.

If it is for cost reasons, well he nearly died over a $100 fill. For deco reasons, why not carry a nitrox stage with a QC6 leaving it at 100ft?

No clue. Doubt it’s cost.

 

[Manatee Diver]

Let’s not mistake ..., who is talking about Gus, with Eric please.

I was talking about Gus as well, that is why I said "nearly died" instead of died. We don't know what Eric was using just yet.

But this incident the same season with the same team. So it presents questions about procedures allowed.