Rebreather World - View Single Post - Drager Dolphin

Evil Dolphin · 19th October 2006, 20:12

Quote: (Originally Posted by machas)

I am looking for information on the minimum safe operating depth for the Drager Dolphin.
I'm looking at a trip that would involve a few days of 15-20 ft/60 minute dives, in addition to several days of reef diving. I'd like to dive the Drager, but have heard of the risk of shallow water blackout. I've looked through my old course materials and don't really see this issue addressed beyond avoiding long surface swims.
I would appreciate any insight RWF members can provide.
Thanks!

That's the kind of diving the Drager Dolphin was made for. If your really going no deeper than 20 feet, use 60% nitrox on the 60% orifice and you should be able to make two 45 minute dives on one 28ft tank with a little bit of gas left over. Just make sure you have a working oxyguage. I NEVER HAVE and I NEVER WILL dive my dolphin witout an oxyguage or some other kind of PO2 monitor.

19th October 2006, 20:12	#3 (permalink)
Evil Dolphin New Member Current Rebreather/s: Sport Kiss Other Rebreather/s: Join Date: Sep 2005 Location: Puget Sound USA Posts: 29	Re: Drager Dolphin - Minimum Safe Depth Quote: (Originally Posted by machas) I am looking for information on the minimum safe operating depth for the Drager Dolphin. I'm looking at a trip that would involve a few days of 15-20 ft/60 minute dives, in addition to several days of reef diving. I'd like to dive the Drager, but have heard of the risk of shallow water blackout. I've looked through my old course materials and don't really see this issue addressed beyond avoiding long surface swims. I would appreciate any insight RWF members can provide. Thanks! That's the kind of diving the Drager Dolphin was made for. If your really going no deeper than 20 feet, use 60% nitrox on the 60% orifice and you should be able to make two 45 minute dives on one 28ft tank with a little bit of gas left over. Just make sure you have a working oxyguage. I NEVER HAVE and I NEVER WILL dive my dolphin witout an oxyguage or some other kind of PO2 monitor.
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