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This is a multi-part message in MIME format. ------=_NextPart_000_0000_01C06C33.9B438800 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit As far as I have been able to read, Al stage bottles are "good" and steel stage bottles are "bad" because steel bottles are supposedly relatively "too heavy for diving and comfort" and "unsafe". I checked the specs for the size of cylinder that would be appropriate for my open water diving. Here they are: Luxfer 48.4 cu.ft./3000 psi 21.15 lbs. empty -2.4 lbs. buoyancy full / +1.3 lbs. empty in salt water OMS 46 cu.ft. / 2640 psi 17.6 lbs. empty with valve -4.0 .lbs. buoyancy full / 0.00 lbs. empty For approximately the same volume, the steel cylinder is lighter and neutral when empty, so I don't need extra weight to be balanced. The steel cylinder is lighter. So, is this just a unique example of the steel cylinder being the better choice, or am I missing something here? ------=_NextPart_000_0000_01C06C33.9B438800 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 5.50.4611.1300" name=3DGENERATOR></HEAD> <BODY> <DIV><SPAN class=3D800260401-23122000><FONT face=3DArial size=3D2>As far = as I have=20 been able to read, Al stage bottles are "good" and steel stage bottles = are "bad"=20 because steel bottles are supposedly relatively "too heavy for diving = and=20 comfort" and "unsafe". I checked the specs for the size of = cylinder=20 that would be appropriate for my open water diving. Here they=20 are:</FONT></SPAN></DIV> <DIV><SPAN class=3D800260401-23122000><FONT face=3DArial=20 size=3D2></FONT></SPAN> </DIV> <DIV><SPAN class=3D800260401-23122000><FONT face=3DArial size=3D2>Luxfer = 48.4=20 cu.ft./3000 psi</FONT></SPAN></DIV> <DIV><SPAN class=3D800260401-23122000><FONT face=3DArial size=3D2>21.15 = lbs.=20 empty</FONT></SPAN></DIV> <DIV><SPAN class=3D800260401-23122000><FONT face=3DArial size=3D2>-2.4 = lbs. buoyancy=20 full / +1.3 lbs. empty in salt water</FONT></SPAN></DIV> <DIV><SPAN class=3D800260401-23122000><FONT face=3DArial=20 size=3D2></FONT></SPAN> </DIV> <DIV><SPAN class=3D800260401-23122000><FONT face=3DArial size=3D2>OMS 46 = cu.ft. / 2640=20 psi</FONT></SPAN></DIV> <DIV><SPAN class=3D800260401-23122000><FONT face=3DArial size=3D2>17.6 = lbs. empty with=20 valve</FONT></SPAN></DIV> <DIV><SPAN class=3D800260401-23122000><FONT face=3DArial size=3D2>-4.0 = ..lbs. buoyancy=20 full / 0.00 lbs. empty</FONT></SPAN></DIV> <DIV><SPAN class=3D800260401-23122000><FONT face=3DArial=20 size=3D2></FONT></SPAN> </DIV> <DIV><SPAN class=3D800260401-23122000><FONT face=3DArial size=3D2>For = approximately=20 the same volume, the steel cylinder is lighter and neutral when empty, = so I=20 don't need extra weight to be balanced. The steel cylinder is=20 lighter.</FONT></SPAN></DIV> <DIV><SPAN class=3D800260401-23122000><FONT face=3DArial=20 size=3D2></FONT></SPAN> </DIV> <DIV><SPAN class=3D800260401-23122000><FONT face=3DArial size=3D2>So, is = this just a=20 unique example of the steel cylinder being the better choice, or am I = missing=20 something here?</FONT></SPAN></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV></BODY></HTML> ------=_NextPart_000_0000_01C06C33.9B438800-- -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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