Blind Exits on a Rebreather

Danil · 25th July 2005, 13:31

My humble opinion is that a HUD is a must for overhead, to silty to see you bail to SCR until you are in the clear.
Start fibbling with bags of water and acrylic rods in zero visibility and a guideline to hold on to is not should i say optimal...

mattmexico · 7th September 2005, 02:41

If you are diving at a stable depth and have minimum lung volume you should be able to maintain your po2 very close while maintaining mimimum lung volume even if your electronics fail. If your electronic work you should hear the solenoid.

Matt
www.protecdiving.com

ROB DAVIE · 7th September 2005, 03:03

Matt,

Glad to see you onboard Rebreather World. One of the things that makes this a great Rebreather site is people of your calibre who are willing to contribute!

Again, welcome aboard!

Rob

Drmike · 7th September 2005, 05:10

Quote: (Originally Posted by Danil)

My humble opinion is that a HUD is a must for overhead, to silty to see you bail to SCR until you are in the clear.
Start fibbling with bags of water and acrylic rods in zero visibility and a guideline to hold on to is not should i say optimal...

In my not so humble opinon - you are right

I certainly was very glad I had the HUD during my problem dive last week. I missed not being able to verify with the handset but I could live with that. The sound of the solenoid firing did apear highly magnified too and couldnt be missed. But I wouldnt have wanted to have had to add more tasks and be bothered with running min loop at the time, I had enough to worry about.

**Steve** · 7th September 2005, 05:19

Quote: (Originally Posted by Danil)

My humble opinion is that a HUD is a must for overhead, to silty to see you bail to SCR until you are in the clear.
Start fibbling with bags of water and acrylic rods in zero visibility and a guideline to hold on to is not should i say optimal...

Hi Dani,

I like the HUD for general diving but really don't see it as a panacea in a siltout. When one is blind; one hand on the bag and display and the other on the line is a pretty good fit in my eyes. As I mentioned earlier; if I could only just tell a 10W HID light wasn’t on when held up to my mask then a LED isn’t going to help one bit. A bag of water will.

What would you suggest if the siltout prevents one from being able to see their HUD? :-)

Mike · 7th September 2005, 07:11

Quote: (Originally Posted by Steve)

if I could only just tell a 10W HID light wasn’t on when held up to my mask then a LED isn’t going to help one bit. A bag of water will.

What would you suggest if the siltout prevents one from being able to see their HUD? :-)

That's a pretty wild silt out you've got there Steve - can I suggest that as a first step you pull your head out of the mud? Can you even swim when it's that thick?

Had a bit of a play at the weekend in some silt one of my mates had prepared earlier, and could see the Prism hud no problems. However I could also see my torch, so it wasn't as thick as you describe.

I think you're forgetting that with a hud (at least the prism) all you need to be able to do is see what colour the LED is. Therefore, I actually don't see it being a problem even if it is mud - just press the HUD up against your mask. Glass | Epoxy | LED You'd be able to tell what colour was being displayed, and that's all you need to know.

Borrow Luke's unit and try it out (I'd offer mine but I'm worried I'd never get the mud off)

Mike

mattmexico · 9th September 2005, 00:03

Yo there

I guess depending on the unit you are diving your HUD could be more then just some blinking lights who have no function in real zero viz.

If you have a Optima or any other CCR fitted with Hammerhead electronics you should have your little private DIVA vibrator attached to your DSV. When that little devil goes off you sure know when your po2 is not right. Agreed it is more a device that tells you you are in trouble but none the less better then nothing.

Silt out's are mostly ( alas not all the time ) localized occurences I would think. Off course there are these brave souls out there who dive in zero viz by habbit or nececity, I bow my head. For those it might be a viable option to think about your very private little vibrator.

Matt
www.protecdiving.com

Mark Chase · 9th September 2005, 08:23

Quote: (Originally Posted by Danil)

My humble opinion is that a HUD is a must for overhead, to silty to see you bail to SCR until you are in the clear.
Start fibbling with bags of water and acrylic rods in zero visibility and a guideline to hold on to is not should i say optimal...

I totally agree.

I have done dives in crap viz and the coloured lights of the HUD are pretty much all I could see. If I had gone the KISS rout then I would have definitely fitted a HUD. Obviously this is not going to sit well with the no electronics KISS divers and no doubt Zak will be further taking the piss for today’s canned dive due to electronics problems but I have done enough to know I wouldn’t be monitoring my hand sets enough in a highly task loaded situation.

There has to be a case for full ECCR as well because under normal conditions it will just fly its self and it wouldn’t be an issue. A unit with a HUD and ECCR that can be flown manually seems the best of all worlds to me.

ATB

Mark Chase

Mark Chase · 9th September 2005, 08:28

Quote: (Originally Posted by mattmexico)

Yo there

I guess depending on the unit you are diving your HUD could be more then just some blinking lights who have no function in real zero viz.

If you have a Optima or any other CCR fitted with Hammerhead electronics you should have your little private DIVA vibrator attached to your DSV. When that little devil goes off you sure know when your po2 is not right. Agreed it is more a device that tells you you are in trouble but none the less better then nothing.

Silt out's are mostly ( alas not all the time ) localized occurences I would think. Off course there are these brave souls out there who dive in zero viz by habbit or nececity, I bow my head. For those it might be a viable option to think about your very private little vibrator.

Matt
www.protecdiving.com

I really liked the vibrator idea but its primary advantage over a light HUD is for C02 hit where you apparently respond better to the vibration than to the light? Thing is the HUD can’t register a CO2 hit so whets the point?

One thing I will say, my HUD went silly due to some corrosion in the lumberg connector and I had two reds and a green for the whole dive. As it was my VR3 in the loop and both hand sets said the HUD was toast so I just did the dive the good old fashioned way. Had the thing been vibrating all the dammed time I would have had to can the dive as it would have driven me mad.

Just a thought.

ATB

Mark Chase

Janos · 9th September 2005, 09:40

Just as aside, but BT (I think) are developing a language called Moon for fighter pilots. The idea is that there fighter pilots are overloaded with too much visual information as it is, and so by communicating with vibrations as well, the brain can handle more information. The system works by having vibrating pads to the legs, arms, etc etc and then with training you get to know that vibration in the lower back = incoming missle or whatever.

Janos

25th July 2005, 13:31	#21 (permalink)
Danil Meg Diver Current Rebreather/s: Megalodon Other Rebreather/s: Not Bought Yet Join Date: Apr 2005 Location: Karlstad, Sweden Posts: 110	My humble opinion is that a HUD is a must for overhead, to silty to see you bail to SCR until you are in the clear. Start fibbling with bags of water and acrylic rods in zero visibility and a guideline to hold on to is not should i say optimal... __________________ -------------------- Dan Nilsson, Meg 67
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7th September 2005, 02:41	#22 (permalink)
mattmexico Rebreather World Writer Current Rebreather/s: Megalodon Classic Kiss Optima RB80 / Clone Other Rebreather/s: Inspiration Classic Evolution Prism Topaz Sport Kiss RB80 / Clone Join Date: Aug 2005 Location: Mexico, Q.Roo, Playa del Carmen Posts: 764	If you are diving at a stable depth and have minimum lung volume you should be able to maintain your po2 very close while maintaining mimimum lung volume even if your electronics fail. If your electronic work you should hear the solenoid. Matt www.protecdiving.com
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7th September 2005, 03:03	#23 (permalink)
ROB DAVIE Administrator Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Feb 2005 Location: HOUSTON, REPUBLIC OF TEJAS Posts: 1,120	Matt, Glad to see you onboard Rebreather World. One of the things that makes this a great Rebreather site is people of your calibre who are willing to contribute! Again, welcome aboard! Rob __________________ [SIZE=2]"CC Rebreathers will become a viable part of tech diving [U]WHEN PIGS FLY[/U]!!"--GI3[/SIZE]
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7th September 2005, 05:10	#24 (permalink)
Drmike Custom Title Allowed! Current Rebreather/s: MK 15.X Ouroboros Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2005 Posts: 3,323	Quote: (Originally Posted by Danil) My humble opinion is that a HUD is a must for overhead, to silty to see you bail to SCR until you are in the clear. Start fibbling with bags of water and acrylic rods in zero visibility and a guideline to hold on to is not should i say optimal... In my not so humble opinon - you are right I certainly was very glad I had the HUD during my problem dive last week. I missed not being able to verify with the handset but I could live with that. The sound of the solenoid firing did apear highly magnified too and couldnt be missed. But I wouldnt have wanted to have had to add more tasks and be bothered with running min loop at the time, I had enough to worry about. __________________ Cave diving is a sport Wreck diving is a sport Diving in general is a sport 'Rebreather diving' is not a sport its the delusional obsession with a highly dangerous and often inappropriate piece of equipment
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7th September 2005, 05:19	#25 (permalink)
Steve Ladies bring a plate Current Rebreather/s: Megalodon Home Build Other Rebreather/s: Not Bought Yet Inspiration Classic Sport Kiss Classic Kiss MK 15.X Home Build Join Date: Feb 2005 Location: Perth - Australia Posts: 1,117	Quote: (Originally Posted by Danil) My humble opinion is that a HUD is a must for overhead, to silty to see you bail to SCR until you are in the clear. Start fibbling with bags of water and acrylic rods in zero visibility and a guideline to hold on to is not should i say optimal... Hi Dani, I like the HUD for general diving but really don't see it as a panacea in a siltout. When one is blind; one hand on the bag and display and the other on the line is a pretty good fit in my eyes. As I mentioned earlier; if I could only just tell a 10W HID light wasn’t on when held up to my mask then a LED isn’t going to help one bit. A bag of water will. What would you suggest if the siltout prevents one from being able to see their HUD? :-) __________________ WARNING: I contain occasional coarse language, extreme sexual references, nudity, and adult themes, which may offend some people - Usually churchy types.
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7th September 2005, 07:11	#26 (permalink)
Mike Prism 'prentice Current Rebreather/s: Prism Topaz Other Rebreather/s: Inspiration Classic Evolution Join Date: Feb 2005 Location: Melbourne Posts: 329	Quote: (Originally Posted by Steve) if I could only just tell a 10W HID light wasn’t on when held up to my mask then a LED isn’t going to help one bit. A bag of water will. What would you suggest if the siltout prevents one from being able to see their HUD? :-) That's a pretty wild silt out you've got there Steve - can I suggest that as a first step you pull your head out of the mud? Can you even swim when it's that thick? Had a bit of a play at the weekend in some silt one of my mates had prepared earlier, and could see the Prism hud no problems. However I could also see my torch, so it wasn't as thick as you describe. I think you're forgetting that with a hud (at least the prism) all you need to be able to do is see what colour the LED is. Therefore, I actually don't see it being a problem even if it is mud - just press the HUD up against your mask. Glass \| Epoxy \| LED You'd be able to tell what colour was being displayed, and that's all you need to know. Borrow Luke's unit and try it out (I'd offer mine but I'm worried I'd never get the mud off) Mike
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9th September 2005, 00:03	#27 (permalink)
mattmexico Rebreather World Writer Current Rebreather/s: Megalodon Classic Kiss Optima RB80 / Clone Other Rebreather/s: Inspiration Classic Evolution Prism Topaz Sport Kiss RB80 / Clone Join Date: Aug 2005 Location: Mexico, Q.Roo, Playa del Carmen Posts: 764	personal vibrator Yo there I guess depending on the unit you are diving your HUD could be more then just some blinking lights who have no function in real zero viz. If you have a Optima or any other CCR fitted with Hammerhead electronics you should have your little private DIVA vibrator attached to your DSV. When that little devil goes off you sure know when your po2 is not right. Agreed it is more a device that tells you you are in trouble but none the less better then nothing. Silt out's are mostly ( alas not all the time ) localized occurences I would think. Off course there are these brave souls out there who dive in zero viz by habbit or nececity, I bow my head. For those it might be a viable option to think about your very private little vibrator. Matt www.protecdiving.com
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9th September 2005, 08:23	#28 (permalink)
Mark Chase I go down for ages Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Jan 2005 Location: Kent Posts: 2,700	Quote: (Originally Posted by Danil) My humble opinion is that a HUD is a must for overhead, to silty to see you bail to SCR until you are in the clear. Start fibbling with bags of water and acrylic rods in zero visibility and a guideline to hold on to is not should i say optimal... I totally agree. I have done dives in crap viz and the coloured lights of the HUD are pretty much all I could see. If I had gone the KISS rout then I would have definitely fitted a HUD. Obviously this is not going to sit well with the no electronics KISS divers and no doubt Zak will be further taking the piss for today’s canned dive due to electronics problems but I have done enough to know I wouldn’t be monitoring my hand sets enough in a highly task loaded situation. There has to be a case for full ECCR as well because under normal conditions it will just fly its self and it wouldn’t be an issue. A unit with a HUD and ECCR that can be flown manually seems the best of all worlds to me. ATB Mark Chase __________________ Is it supposed to make that noise ? I took my unit to the dive shop and demanded they bolt on every thing that would fit. Join my elite diving teem and get a Tshirt "Doing It Chasey"Hammerhead Eccr Advanced Diving System
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9th September 2005, 08:28	#29 (permalink)
Mark Chase I go down for ages Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Jan 2005 Location: Kent Posts: 2,700	Quote: (Originally Posted by mattmexico) Yo there I guess depending on the unit you are diving your HUD could be more then just some blinking lights who have no function in real zero viz. If you have a Optima or any other CCR fitted with Hammerhead electronics you should have your little private DIVA vibrator attached to your DSV. When that little devil goes off you sure know when your po2 is not right. Agreed it is more a device that tells you you are in trouble but none the less better then nothing. Silt out's are mostly ( alas not all the time ) localized occurences I would think. Off course there are these brave souls out there who dive in zero viz by habbit or nececity, I bow my head. For those it might be a viable option to think about your very private little vibrator. Matt www.protecdiving.com I really liked the vibrator idea but its primary advantage over a light HUD is for C02 hit where you apparently respond better to the vibration than to the light? Thing is the HUD can’t register a CO2 hit so whets the point? One thing I will say, my HUD went silly due to some corrosion in the lumberg connector and I had two reds and a green for the whole dive. As it was my VR3 in the loop and both hand sets said the HUD was toast so I just did the dive the good old fashioned way. Had the thing been vibrating all the dammed time I would have had to can the dive as it would have driven me mad. Just a thought. ATB Mark Chase __________________ Is it supposed to make that noise ? I took my unit to the dive shop and demanded they bolt on every thing that would fit. Join my elite diving teem and get a Tshirt "Doing It Chasey"Hammerhead Eccr Advanced Diving System
(Online)

9th September 2005, 09:40	#30 (permalink)
Janos "Two Sheds" Current Rebreather/s: Classic Kiss Other Rebreather/s: Classic Kiss Join Date: Feb 2005 Location: East Surrey Posts: 600	Just as aside, but BT (I think) are developing a language called Moon for fighter pilots. The idea is that there fighter pilots are overloaded with too much visual information as it is, and so by communicating with vibrations as well, the brain can handle more information. The system works by having vibrating pads to the legs, arms, etc etc and then with training you get to know that vibration in the lower back = incoming missle or whatever. Janos __________________ You can lead a horse to water but you can't climb a ladder with a large bell in both hands - Vic Reeves www.hellfins.com/shed
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