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Marc T · 9th October 2007, 15:00

Quote: (Originally Posted by lizardland)

I'm sure I've seen a thread along the same lines previously. Anyone been using their wing as a BOB?

With a few hours to spare, an ABLJ that I got for a tenner off ebay, what's left of my old Ray and my spare DSV (from a Draeger FGT):

My new bailout rebreather!

The idea is:
- no electronics, it's purely a manual SCR. Breathe in, out, in, out, in, out, dump, add new gas, go back to start or pure O2 CCR mode at 6m
- no ADV, because it's running as my BCD there will always be a bit of gas in it
- no real change in kit loading, it's the BCD, it's running off gas I'm carrying anyway so no extra bottles, the only extra item is the scrubber which is small

I had a go on it the other day and I have to say I was impressed at how compact it felt (other than ABLJ's being shite for diving with in general). It worked as a manual SCR (I did a bit on pure O2 mode just to check it all worked), it wasn't a super-performer but it did work.

The next step if it proves viable is to move on to a wing so that I'm diving on exactly the same kit as I was before except for a small scrubber plugged in the bottom of the wing. I'm also considering the addition of a single cell but on the other hand, I know my manual SCR rates.

Before I waste any more money, has anyone else done it? The WOB with the chest mount was OK, I'm curious as to what it will be like with a wing. I'm curious too if I'm

I'd also like to know what the max depth for a Ray scrubber would be in SCR mode. At the moment it's split as to whether I'm considering deep bailout or a way of making deco gas go further on cave dives if I needed to go OC (or where the 6m stop is pushing the KISS over its 3hrs).

Cheers,
Stuart

Many of us have been playing with that idea of using the wing as a counterlung, in fact there is many problem to solve ( what gaz in the wing?, problems on ascent, trim and wob if using a wing ) and finally it appears that doing it that way you are putting many eggs in a single and bad basket.

The only problem you solve that way is the ADV, but so you get a new buoyancy problem.

IMHO thats just a thing to play with, same thing for the idea of using the drysuit as a CL.

A bailout Rebreather must be very reliable and dont create to much problem, I turned my mind recently after an incident

and actualy dive my BOB as a main breather till I am totaly confident and comfortable with it... Thats mean several hours dives and at least intentional dives reaching the depth of the previous first deep stops.

For the Ray scruber I use it up to 40 m.

Cheers

Marc

As for the "manual SCR" in emergency

9th October 2007, 15:00	#11 (permalink)
Marc T hell is in the details Current Rebreather/s: RB80 / Clone Home Build Other Rebreather/s: Not Bought Yet RB80 / Clone Home Build Join Date: Sep 2005 Location: FRANCE Carcassonne Posts: 498	Re: Wing as a BOB? Quote: (Originally Posted by lizardland) I'm sure I've seen a thread along the same lines previously. Anyone been using their wing as a BOB? With a few hours to spare, an ABLJ that I got for a tenner off ebay, what's left of my old Ray and my spare DSV (from a Draeger FGT): My new bailout rebreather! The idea is: - no electronics, it's purely a manual SCR. Breathe in, out, in, out, in, out, dump, add new gas, go back to start or pure O2 CCR mode at 6m - no ADV, because it's running as my BCD there will always be a bit of gas in it - no real change in kit loading, it's the BCD, it's running off gas I'm carrying anyway so no extra bottles, the only extra item is the scrubber which is small I had a go on it the other day and I have to say I was impressed at how compact it felt (other than ABLJ's being shite for diving with in general). It worked as a manual SCR (I did a bit on pure O2 mode just to check it all worked), it wasn't a super-performer but it did work. The next step if it proves viable is to move on to a wing so that I'm diving on exactly the same kit as I was before except for a small scrubber plugged in the bottom of the wing. I'm also considering the addition of a single cell but on the other hand, I know my manual SCR rates. Before I waste any more money, has anyone else done it? The WOB with the chest mount was OK, I'm curious as to what it will be like with a wing. I'm curious too if I'm I'd also like to know what the max depth for a Ray scrubber would be in SCR mode. At the moment it's split as to whether I'm considering deep bailout or a way of making deco gas go further on cave dives if I needed to go OC (or where the 6m stop is pushing the KISS over its 3hrs). Cheers, Stuart Many of us have been playing with that idea of using the wing as a counterlung, in fact there is many problem to solve ( what gaz in the wing?, problems on ascent, trim and wob if using a wing ) and finally it appears that doing it that way you are putting many eggs in a single and bad basket. The only problem you solve that way is the ADV, but so you get a new buoyancy problem. IMHO thats just a thing to play with, same thing for the idea of using the drysuit as a CL. A bailout Rebreather must be very reliable and dont create to much problem, I turned my mind recently after an incident and actualy dive my BOB as a main breather till I am totaly confident and comfortable with it... Thats mean several hours dives and at least intentional dives reaching the depth of the previous first deep stops. For the Ray scruber I use it up to 40 m. Cheers Marc As for the "manual SCR" in emergency Last edited by sadave : 10th October 2007 at 01:11. Reason: Haven't I seen that pic before?
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