"Bum" mounted cylinder on Inspiration

Barjumpa · 19th February 2008, 10:55

I am considering mounting a bailout tank of 40 or 50 cu ft under the bum of my inspiration. I am considering mounting it to the box or even adapting a narked @ 90 stand. This would give me a little more height to get into the harness, and no longer have to fiddle around connecting slings which is prooving difficult in a small boat.

At present I have the standard Vision Inspo soft back pack and harness but am also considering fitting a stainless steel back plate which would I assume suit the fitting of a narked @90 basestand.

I assume several here have already tried this before. I would like to here a few pro's and con's.

jhaaja · 19th February 2008, 11:34

Do you really want to add weight to the unit? And in this case to the lower part of it as rbs tend to be butt heavy in the first place.

I would think that fitting a nice backplate will help with the stages. Stages offer a more versatile system, bigger for deeper stuff and smaller for shallower stuff.

It is easiest to fix the stage in the water if possible.

JH

Mikel-Deko · 19th February 2008, 11:45

Hi
I agree absolutely with Jhaaja. Is the inspo not heavy enaught?
In this moment, i'm diving my unit standard but with a aluminium backplate and i'm trying to made something lighter.
Best
Mikel

safagamarc · 19th February 2008, 11:56

G'day,

The idea of a butt mounted bail-out isn't at all bad but like the other chaps said maybe abit heavy on an Inspo, plus will make the thing bloody long and bulky. A mate of mine is manufacturing a bail-out stage frame for evo's and this does work real well.

Check this link for an idea.
Rebreather College Freiburg - Bailout-Frame für Buddy Evolution

Regards,
Marc

**PhilSiswick** · 19th February 2008, 12:31

Quote: (Originally Posted by Barjumpa)

I am considering mounting a bailout tank of 40 or 50 cu ft under the bum of my inspiration. I am considering mounting it to the box or even adapting a narked @ 90 stand. This would give me a little more height to get into the harness, and no longer have to fiddle around connecting slings which is prooving difficult in a small boat.

At present I have the standard Vision Inspo soft back pack and harness but am also considering fitting a stainless steel back plate which would I assume suit the fitting of a narked @90 basestand.

I assume several here have already tried this before. I would like to here a few pro's and con's.

My goodness, how tall are you? I'm 6'4" and had no issues with the Vision heightwise. I'm now on an Evo, so that I can share the unit with my much shorter wife. As a result, given that it is shorter and has only 2l cylinders, I've had to think through the same problem.

Give Narked@90 a call. He's helping me out with my challenge, so should be able to help you. I'm intending to put a cylinder across the bottom for extra O2, but am waiting to see whether that makes the unit too butt heavy.

I've been diving an s/s backplate for the last year. Do it - you'll love it and it might fix some of your kitting up issues without going all the way to creating the tallest rebreather out there

Cheers,

19th February 2008, 10:55	#1 (permalink)
Barjumpa New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Sep 2007 Location: Sydney Posts: 10	"Bum" mounted cylinder on Inspiration I am considering mounting a bailout tank of 40 or 50 cu ft under the bum of my inspiration. I am considering mounting it to the box or even adapting a narked @ 90 stand. This would give me a little more height to get into the harness, and no longer have to fiddle around connecting slings which is prooving difficult in a small boat. At present I have the standard Vision Inspo soft back pack and harness but am also considering fitting a stainless steel back plate which would I assume suit the fitting of a narked @90 basestand. I assume several here have already tried this before. I would like to here a few pro's and con's. __________________ Leave No Bubbles...!And if it is down there I'm bringing it back up...!
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19th February 2008, 11:34	#2 (permalink)
jhaaja Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Mar 2005 Location: Finland Posts: 885	Re: "Bum" mounted cylinder on Inspiration Do you really want to add weight to the unit? And in this case to the lower part of it as rbs tend to be butt heavy in the first place. I would think that fitting a nice backplate will help with the stages. Stages offer a more versatile system, bigger for deeper stuff and smaller for shallower stuff. It is easiest to fix the stage in the water if possible. JH
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19th February 2008, 11:45	#3 (permalink)
Mikel-Deko RBW Member Current Rebreather/s: Inspiration Classic Other CCR Other Rebreather/s: Other CCR Join Date: Jul 2005 Location: Basque Country -Sp- Posts: 476	Re: "Bum" mounted cylinder on Inspiration Hi I agree absolutely with Jhaaja. Is the inspo not heavy enaught? In this moment, i'm diving my unit standard but with a aluminium backplate and i'm trying to made something lighter. Best Mikel __________________ Mikel-Deko Basque Country www.olatu.net "DIR is the nanny state for divers who cannot think on their own" Ron Micjan
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19th February 2008, 11:56	#4 (permalink)
safagamarc New Member Current Rebreather/s: Inspiration Classic Other Rebreather/s: Inspiration Classic Inspiration Vision Evolution Join Date: May 2006 Location: port safaga,red sea Posts: 24	Re: "Bum" mounted cylinder on Inspiration G'day, The idea of a butt mounted bail-out isn't at all bad but like the other chaps said maybe abit heavy on an Inspo, plus will make the thing bloody long and bulky. A mate of mine is manufacturing a bail-out stage frame for evo's and this does work real well. Check this link for an idea. Rebreather College Freiburg - Bailout-Frame für Buddy Evolution Regards, Marc
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19th February 2008, 12:31	#5 (permalink)
PhilSiswick Phil Siswick, Tango Current Rebreather/s: Evolution Other Rebreather/s: Inspiration Vision Join Date: Apr 2006 Location: Oxford, UK Posts: 1,099	Re: "Bum" mounted cylinder on Inspiration Quote: (Originally Posted by Barjumpa) I am considering mounting a bailout tank of 40 or 50 cu ft under the bum of my inspiration. I am considering mounting it to the box or even adapting a narked @ 90 stand. This would give me a little more height to get into the harness, and no longer have to fiddle around connecting slings which is prooving difficult in a small boat. At present I have the standard Vision Inspo soft back pack and harness but am also considering fitting a stainless steel back plate which would I assume suit the fitting of a narked @90 basestand. I assume several here have already tried this before. I would like to here a few pro's and con's. My goodness, how tall are you? I'm 6'4" and had no issues with the Vision heightwise. I'm now on an Evo, so that I can share the unit with my much shorter wife. As a result, given that it is shorter and has only 2l cylinders, I've had to think through the same problem. Give Narked@90 a call. He's helping me out with my challenge, so should be able to help you. I'm intending to put a cylinder across the bottom for extra O2, but am waiting to see whether that makes the unit too butt heavy. I've been diving an s/s backplate for the last year. Do it - you'll love it and it might fix some of your kitting up issues without going all the way to creating the tallest rebreather out there Cheers, __________________ Phil (WSKD 0001) I have always felt that the dive I am on is not nearly important as the dives I plan to be on the rest of my life. Tom Rose, 2007 The person who gets the farthest is generally the one who is willing to do and dare. The sure thing boat never gets far from shore. Charles A. Lindbergh www.hugsac.org.uk
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