Lightest Rebreather

lizardland · 24th April 2008, 21:55

Quote: (Originally Posted by WD8CDH)

He only needs 30 meters and 1 hour. It looks like that is no problem for the Ray but I can't find weight for the Ray. Any idea what one would weigh with a 13cf tank?

His limit is about 25 pounds top. My homebuilt is 22 pounds with 6cf tanks and a filled scrubber but I don't want to accept the responsability of selling one.

Ron Schroeder

The Ray is not much more than a recreational BCD, a scrubber (1.25kg plus the weight of the plastic can), the cylinder, the regulator and the loop. No idea what the total would be, maybe 10kg max plus the cylinder? As mentioned though, lead must be taken into account.

**SeaBass** · 25th April 2008, 05:42

Comon guy's.

Seem to have forgotten the classic.

Now this is the lightest Rebreather Ever

ChristianM · 25th April 2008, 11:07

Or what about this one
http://www.rebreatherworld.com/close...ebreather.html

I won't choose the ray in SCR mode. You need to much lead with the full counter lungs. In CCR with 2x2l (or even 1l for O2) it would be nice.

Cheers!
Christian

WD8CDH · 25th April 2008, 16:03

Thanks for the suggestions so far. Does anybody have the weight of the Ray and does it actually use the BC bladder as the CL?

Ron

chunter · 25th April 2008, 22:40

How about a KisskaBOB? I have 2 6cf tanks on it now, so it is even smaller and lighter.

YouTube - BOB Rebreather - Sport Kiss - part 2

ChristianM · 29th April 2008, 08:09

Hi Ron,

the Ray should be around 14kg without lead.
Rebreather, Kreislauftauchgerät, Dräger Ray, DrägerRay
The counterlungs are integrated in the top of the BC and go OTS.
Rebreather, Kreislauftauchgerät, Dräger Ray, DrägerRay
Ray Atembeutel II, CE | Online Shop | W+S Water Safety Europe GmbH | Seit 1999

Cheers!
Christian

WD8CDH · 29th April 2008, 16:41

Hi Christian,

I see. The lungs are built into the BC jacket but seperate compartments.

It looks like a SCR Ray with the properly selected bottle or a Ray converted to Kiss style mCCR with 6 CF bottles or smaller would suit his diving style and limitations best.

Janwillem Bech · 29th April 2008, 22:51

World smallest CCR by Dave

ChristianM · 30th April 2008, 05:15

Hi Ron,

yes, the lungs are seperate compartments. But you have to check if it's not to heave with lead. Hopefully I can make a trydive with the ray in two weeks. If I remember correctly my wife needs about 10kg of lead with the Ray in SCR mode.
Maybe there will be some answers about the lead.
http://www.rebreatherworld.com/semi-...y-weights.html

Have you ask Holger (TR300) about the weight of the TR300sc? It should also be very light.

Or maybe this one:
Stingray CCR

Cheers!
Christian

gerstl_ossi · 30th April 2008, 23:01

I made a homebuild witch I dived for a few Years, very small, 1,7Kg. Radial filter, back mounted single counterlung. I used it wit 2,5 steel or 1L Alu tanks.(Photo with 2,5L Steel)
Called it MGK 35 but dived it also a few meter

deeper. But it's one out of a series of one

Cheers Oswald

PS: A very nice, small rebreather is that from the girlfriend of seppu based on a TR300 with carbontanks, looks good, there should be some photos here on rebreatherworld

24th April 2008, 21:55	#11 (permalink)
lizardland Yak Current Rebreather/s: MK 15.X Home Build Other Rebreather/s: Classic Kiss Home Build Join Date: Mar 2005 Location: North... Posts: 1,189	Re: Lightest Rebreather Quote: (Originally Posted by WD8CDH) He only needs 30 meters and 1 hour. It looks like that is no problem for the Ray but I can't find weight for the Ray. Any idea what one would weigh with a 13cf tank? His limit is about 25 pounds top. My homebuilt is 22 pounds with 6cf tanks and a filled scrubber but I don't want to accept the responsability of selling one. Ron Schroeder The Ray is not much more than a recreational BCD, a scrubber (1.25kg plus the weight of the plastic can), the cylinder, the regulator and the loop. No idea what the total would be, maybe 10kg max plus the cylinder? As mentioned though, lead must be taken into account. __________________ Can you imagine drifting along in the sea with your mouth open and a load of f***ing plankton going in? You'd like it, would you? www.westons-cider.co.uk Azerbaijani Association of Technical Divers Publicity Officer and Goat Wrangler
(Offline)

25th April 2008, 11:07	#13 (permalink)
ChristianM New Member Current Rebreather/s: Dolphin Home Build Other Rebreather/s: Dolphin Home Build Join Date: Sep 2005 Location: Germany Posts: 44	Re: Lightest Rebreather Or what about this one http://www.rebreatherworld.com/close...ebreather.html I won't choose the ray in SCR mode. You need to much lead with the full counter lungs. In CCR with 2x2l (or even 1l for O2) it would be nice. Cheers! Christian
(Offline)

25th April 2008, 16:03	#14 (permalink)
WD8CDH New Member Current Rebreather/s: MK 15.X Other CCR Other SCR Home Build Other Rebreather/s: Not Bought Yet Other CCR Other SCR Home Build Join Date: Dec 2007 Location: NY Posts: 54	Re: Lightest Rebreather Thanks for the suggestions so far. Does anybody have the weight of the Ray and does it actually use the BC bladder as the CL? Ron
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29th April 2008, 08:09	#16 (permalink)
ChristianM New Member Current Rebreather/s: Dolphin Home Build Other Rebreather/s: Dolphin Home Build Join Date: Sep 2005 Location: Germany Posts: 44	Re: Lightest Rebreather Hi Ron, the Ray should be around 14kg without lead. Rebreather, Kreislauftauchgerät, Dräger Ray, DrägerRay The counterlungs are integrated in the top of the BC and go OTS. Rebreather, Kreislauftauchgerät, Dräger Ray, DrägerRay Ray Atembeutel II, CE \| Online Shop \| W+S Water Safety Europe GmbH \| Seit 1999 Cheers! Christian
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29th April 2008, 16:41	#17 (permalink)
WD8CDH New Member Current Rebreather/s: MK 15.X Other CCR Other SCR Home Build Other Rebreather/s: Not Bought Yet Other CCR Other SCR Home Build Join Date: Dec 2007 Location: NY Posts: 54	Re: Lightest Rebreather Hi Christian, I see. The lungs are built into the BC jacket but seperate compartments. It looks like a SCR Ray with the properly selected bottle or a Ray converted to Kiss style mCCR with 6 CF bottles or smaller would suit his diving style and limitations best. __________________ Ron Schroeder Former Commercial Diver, now Lazy Diver
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29th April 2008, 22:51	#18 (permalink)
Janwillem Bech New Member Current Rebreather/s: Inspiration Classic Other CCR Other SCR Other Rebreather/s: Other CCR Other SCR Join Date: Feb 2005 Location: Netherlands Posts: 89	Re: Lightest Rebreather World smallest CCR by Dave
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30th April 2008, 05:15	#19 (permalink)
ChristianM New Member Current Rebreather/s: Dolphin Home Build Other Rebreather/s: Dolphin Home Build Join Date: Sep 2005 Location: Germany Posts: 44	Re: Lightest Rebreather Hi Ron, yes, the lungs are seperate compartments. But you have to check if it's not to heave with lead. Hopefully I can make a trydive with the ray in two weeks. If I remember correctly my wife needs about 10kg of lead with the Ray in SCR mode. Maybe there will be some answers about the lead. http://www.rebreatherworld.com/semi-...y-weights.html Have you ask Holger (TR300) about the weight of the TR300sc? It should also be very light. Or maybe this one: Stingray CCR Cheers! Christian
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