This article is rated C-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||
|
|
CO2 is toxic see Carbon_dioxide#Animal toxicity
Mark.murphy 18:46, 29 May 2007 (UTC)
I have removed the last two edits which were primarily to advertise 'Dive Right' products. Tripper 12:17, 2 August 2007 (UTC)
Advertising by Dive Right??? Never saw the advertising but surely this is "Dive Rite" Dave Jones —Preceding unsigned comment added by 84.51.154.147 ( talk) 17:31, 13 October 2007 (UTC)
I don't know about anyone else but I call them "BCDs" (Buoyancy Compensation Devices) Discuss? Rincewind32 ( talk) 10:47, 11 September 2009 (UTC)
I was wondering whether a Buoyancy Compensation Device could be used to replace lifejackets. Not sure whether BCD's have the same float strength and durability as lifejackets. Also not sure whether they allow a person to attain a suitable hight above the water surface (as divers generally stay below the water surface, eg nose just below it) and whether they allow to keep a person on the back when fully blown up. Also, only a small bottle (pony) can be used. However if possible, could allow to reduce costs as a lifejacket is always required on a vessel anyhow, thus eliminating double costs. KVDP ( talk) 14:37, 8 January 2010 (UTC)
An image used in this article, File:Sharkey wearing Fenzy.jpg, has been nominated for speedy deletion for the following reason: All Wikipedia files with unknown copyright status
Don't panic; you should have time to contest the deletion (although please review deletion guidelines before doing so). The best way to contest this form of deletion is by posting on the image talk page.
This notification is provided by a Bot -- CommonsNotificationBot ( talk) 04:11, 15 December 2011 (UTC) |
"but have a greater tendency to float the diver face-down on the surface, which presents a possible hazard in an emergency." The above sentence was removed today without specifying a reason, but it seems the reason is quite obvious, it simply is not true and there is no justified reason to state it.
Can you provide sources that confirm this face down floating of back inflation (wing) BC's? 84.82.234.122 ( talk) 16:05, 24 May 2013 (UTC) (ilya)
Indeed my experience / original research is different. As the bottle is further back than the flotation device the centre of a properly trimmed diver for good balance underwater the centre of gravity can be further backwards, making one sit vertical or slightly backwards (or forwards). The clearest arguments on this topic that I found during a brief research indicate that it depends on too many factors to simply put that they do have this greater tendency. My suggestion to a change of wording would then be "but might show a tendency to float the diver in such a way that he tilts forward, depending on the distribution of weight.". Ilya devers ( talk) 20:27, 24 May 2013 (UTC)
I too speak from personal experience. Divers experiencing a forward push by using a wing generally use a wing that has too much lift capacity for the tanks used. A rig that is properly balanced wil not push a diver face forward. The dutch website http://frogkick.nl/ corroborates this. More (English) information can be found in : Doing It Right: The Fundamentals of Better Diving by Jarrod Jablonski. ISBN 0-9713267-0-3l 2001:980:CD86:1:AD60:9518:E1DC:7CE6 Casrenooij ( talk) 06:09, 25 May 2013 (UTC)
Although not a reliable source either, the following article clearly discusses why a typical wing / backplate configuration will not push your face in the water at all, as personal experience shows. It is because the center of gravity and the center of lift are very much at the same, making a BC that is not only effective, but very trimmed and "unopinionated," no matter what position the diver chooses. It is good to notice however that this article discusses backplates/wings, NOT back-inflated vest BC's... Realizing this, I have no experience with back-inflated Vest BC's.. For me the rephrased statement is fine. Please note also that the frogkick discussion and the fundamentals of better diving both address backplate / wing design BC's that don't show this behaviour. Regarding your comment regarding life-jackets; it is very important to realise that NO BC can act as a life-jacket. It simply does not have the required attributes to be one... Ilya devers ( talk) 21:53, 25 May 2013 (UTC)
Peter, here's my copyediting comments/suggestions:
RE: '*A harness that the diver wears with straps around the torso and over the shoulders. A crotch strap may be included to prevent the harness from sliding towards the head when the diver is upright and the bladder is inflated.'
Comment --> This describes what it is, but not really its function, which is to transfer buoyant lift from the BC's bladder onto the diver-as-a-sytem. I also suggest that it be elevated to be under the prior all BCs have section, because a BC that isn't attached to a diver floats away.
For wording, suggest:
'*A mechanical attachment between the BC and the diver, for incorporating the bladder's lift forces (buoyancy). The BC is typically secured to a diver's torso, either with dedicated straps or as part of a multifunctional system incorporating other dive equipment functions such as for supporting tank(s), adding weights, pockets, etc, which serves to minimize how many discrete straps & buckles are present. BC attachment solutions generally try to minimize the shifting of the BC as a result of the lifting forces, with a design challenge on minimizing a BC from sliding towards the head when the diver is upright while the bladder is inflated: approaches to minimize have included the cummerbund (a waist strap) and the crotch strap (a strap between the legs), both of whose degrees of success and comfort have been debated.
FYI, I had some wording challenges in the above. For example, because a horsecollar BC doesn't have any shoulder straps, we can't quite claim shoulder straps as a universal attribute. Similarly, the cummerbund is an alternative design to the crotch (or submarine) strap...even if it doesn't work as well.
(End for now. Looking at the === Adjustable buoyancy life jacket === and sections following next ...) -hh ( talk) 21:31, 3 June 2013 (UTC)
Hello fellow Wikipedians,
I have just attempted to maintain the sources on Buoyancy compensator (diving). I managed to add archive links to 1 source, out of the total 1 I modified, whiling tagging 0 as dead.
Please take a moment to review my changes to verify that the change is accurate and correct. If it isn't, please modify it accordingly and if necessary tag that source with {{
cbignore}}
to keep Cyberbot from modifying it any further. Alternatively, you can also add {{nobots|deny=InternetArchiveBot}}
to keep me off the page's sources altogether. Let other users know that you have reviewed my edit by leaving a comment on this post.
Cheers.— cyberbot II Talk to my owner:Online 17:30, 28 June 2015 (UTC)
Hello fellow Wikipedians,
I have just modified 2 external links on Buoyancy compensator (diving). Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{
Sourcecheck}}
).
An editor has determined that the edit contains an error somewhere. Please follow the instructions below and mark the |checked=
to true
Cheers.— InternetArchiveBot ( Report bug) 01:41, 10 November 2016 (UTC)
Hello fellow Wikipedians,
I have just modified 2 external links on Buoyancy compensator (diving). Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{
Sourcecheck}}
).
An editor has determined that the edit contains an error somewhere. Please follow the instructions below and mark the |checked=
to true
Cheers.— InternetArchiveBot ( Report bug) 20:16, 10 November 2016 (UTC)
B |
Looks OK Looks OK Adequately illustrated However a photo of a dedicated pony bottle fitted to a BC would be nice if one can be found. Looks OK |
I check pages listed in Category:Pages with incorrect ref formatting to try to fix reference errors. One of the things I do is look for content for orphaned references in wikilinked articles. I have found content for some of Buoyancy compensator (diving)'s orphans, the problem is that I found more than one version. I can't determine which (if any) is correct for this article, so I am asking for a sentient editor to look it over and copy the correct ref content into this article.
Reference named "Bardy2005":
I apologize if any of the above are effectively identical; I am just a simple computer program, so I can't determine whether minor differences are significant or not. AnomieBOT ⚡ 13:48, 2 July 2020 (UTC)
This article is rated C-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||
|
|
CO2 is toxic see Carbon_dioxide#Animal toxicity
Mark.murphy 18:46, 29 May 2007 (UTC)
I have removed the last two edits which were primarily to advertise 'Dive Right' products. Tripper 12:17, 2 August 2007 (UTC)
Advertising by Dive Right??? Never saw the advertising but surely this is "Dive Rite" Dave Jones —Preceding unsigned comment added by 84.51.154.147 ( talk) 17:31, 13 October 2007 (UTC)
I don't know about anyone else but I call them "BCDs" (Buoyancy Compensation Devices) Discuss? Rincewind32 ( talk) 10:47, 11 September 2009 (UTC)
I was wondering whether a Buoyancy Compensation Device could be used to replace lifejackets. Not sure whether BCD's have the same float strength and durability as lifejackets. Also not sure whether they allow a person to attain a suitable hight above the water surface (as divers generally stay below the water surface, eg nose just below it) and whether they allow to keep a person on the back when fully blown up. Also, only a small bottle (pony) can be used. However if possible, could allow to reduce costs as a lifejacket is always required on a vessel anyhow, thus eliminating double costs. KVDP ( talk) 14:37, 8 January 2010 (UTC)
An image used in this article, File:Sharkey wearing Fenzy.jpg, has been nominated for speedy deletion for the following reason: All Wikipedia files with unknown copyright status
Don't panic; you should have time to contest the deletion (although please review deletion guidelines before doing so). The best way to contest this form of deletion is by posting on the image talk page.
This notification is provided by a Bot -- CommonsNotificationBot ( talk) 04:11, 15 December 2011 (UTC) |
"but have a greater tendency to float the diver face-down on the surface, which presents a possible hazard in an emergency." The above sentence was removed today without specifying a reason, but it seems the reason is quite obvious, it simply is not true and there is no justified reason to state it.
Can you provide sources that confirm this face down floating of back inflation (wing) BC's? 84.82.234.122 ( talk) 16:05, 24 May 2013 (UTC) (ilya)
Indeed my experience / original research is different. As the bottle is further back than the flotation device the centre of a properly trimmed diver for good balance underwater the centre of gravity can be further backwards, making one sit vertical or slightly backwards (or forwards). The clearest arguments on this topic that I found during a brief research indicate that it depends on too many factors to simply put that they do have this greater tendency. My suggestion to a change of wording would then be "but might show a tendency to float the diver in such a way that he tilts forward, depending on the distribution of weight.". Ilya devers ( talk) 20:27, 24 May 2013 (UTC)
I too speak from personal experience. Divers experiencing a forward push by using a wing generally use a wing that has too much lift capacity for the tanks used. A rig that is properly balanced wil not push a diver face forward. The dutch website http://frogkick.nl/ corroborates this. More (English) information can be found in : Doing It Right: The Fundamentals of Better Diving by Jarrod Jablonski. ISBN 0-9713267-0-3l 2001:980:CD86:1:AD60:9518:E1DC:7CE6 Casrenooij ( talk) 06:09, 25 May 2013 (UTC)
Although not a reliable source either, the following article clearly discusses why a typical wing / backplate configuration will not push your face in the water at all, as personal experience shows. It is because the center of gravity and the center of lift are very much at the same, making a BC that is not only effective, but very trimmed and "unopinionated," no matter what position the diver chooses. It is good to notice however that this article discusses backplates/wings, NOT back-inflated vest BC's... Realizing this, I have no experience with back-inflated Vest BC's.. For me the rephrased statement is fine. Please note also that the frogkick discussion and the fundamentals of better diving both address backplate / wing design BC's that don't show this behaviour. Regarding your comment regarding life-jackets; it is very important to realise that NO BC can act as a life-jacket. It simply does not have the required attributes to be one... Ilya devers ( talk) 21:53, 25 May 2013 (UTC)
Peter, here's my copyediting comments/suggestions:
RE: '*A harness that the diver wears with straps around the torso and over the shoulders. A crotch strap may be included to prevent the harness from sliding towards the head when the diver is upright and the bladder is inflated.'
Comment --> This describes what it is, but not really its function, which is to transfer buoyant lift from the BC's bladder onto the diver-as-a-sytem. I also suggest that it be elevated to be under the prior all BCs have section, because a BC that isn't attached to a diver floats away.
For wording, suggest:
'*A mechanical attachment between the BC and the diver, for incorporating the bladder's lift forces (buoyancy). The BC is typically secured to a diver's torso, either with dedicated straps or as part of a multifunctional system incorporating other dive equipment functions such as for supporting tank(s), adding weights, pockets, etc, which serves to minimize how many discrete straps & buckles are present. BC attachment solutions generally try to minimize the shifting of the BC as a result of the lifting forces, with a design challenge on minimizing a BC from sliding towards the head when the diver is upright while the bladder is inflated: approaches to minimize have included the cummerbund (a waist strap) and the crotch strap (a strap between the legs), both of whose degrees of success and comfort have been debated.
FYI, I had some wording challenges in the above. For example, because a horsecollar BC doesn't have any shoulder straps, we can't quite claim shoulder straps as a universal attribute. Similarly, the cummerbund is an alternative design to the crotch (or submarine) strap...even if it doesn't work as well.
(End for now. Looking at the === Adjustable buoyancy life jacket === and sections following next ...) -hh ( talk) 21:31, 3 June 2013 (UTC)
Hello fellow Wikipedians,
I have just attempted to maintain the sources on Buoyancy compensator (diving). I managed to add archive links to 1 source, out of the total 1 I modified, whiling tagging 0 as dead.
Please take a moment to review my changes to verify that the change is accurate and correct. If it isn't, please modify it accordingly and if necessary tag that source with {{
cbignore}}
to keep Cyberbot from modifying it any further. Alternatively, you can also add {{nobots|deny=InternetArchiveBot}}
to keep me off the page's sources altogether. Let other users know that you have reviewed my edit by leaving a comment on this post.
Cheers.— cyberbot II Talk to my owner:Online 17:30, 28 June 2015 (UTC)
Hello fellow Wikipedians,
I have just modified 2 external links on Buoyancy compensator (diving). Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{
Sourcecheck}}
).
An editor has determined that the edit contains an error somewhere. Please follow the instructions below and mark the |checked=
to true
Cheers.— InternetArchiveBot ( Report bug) 01:41, 10 November 2016 (UTC)
Hello fellow Wikipedians,
I have just modified 2 external links on Buoyancy compensator (diving). Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{
Sourcecheck}}
).
An editor has determined that the edit contains an error somewhere. Please follow the instructions below and mark the |checked=
to true
Cheers.— InternetArchiveBot ( Report bug) 20:16, 10 November 2016 (UTC)
B |
Looks OK Looks OK Adequately illustrated However a photo of a dedicated pony bottle fitted to a BC would be nice if one can be found. Looks OK |
I check pages listed in Category:Pages with incorrect ref formatting to try to fix reference errors. One of the things I do is look for content for orphaned references in wikilinked articles. I have found content for some of Buoyancy compensator (diving)'s orphans, the problem is that I found more than one version. I can't determine which (if any) is correct for this article, so I am asking for a sentient editor to look it over and copy the correct ref content into this article.
Reference named "Bardy2005":
I apologize if any of the above are effectively identical; I am just a simple computer program, so I can't determine whether minor differences are significant or not. AnomieBOT ⚡ 13:48, 2 July 2020 (UTC)