Re: [PSUBS-MAILIST] Hull failure calculation sheet

[dinosnider666@spacemail.com]

> Do you get an certificates, or guarantees with your sewer pipe?
> I.e., that it's made from such'n'such quality steel and inpected
> for defects.  At least you are getting it new, rather than used,
> hopefully it will be less abused...
> 
> > I didn't know anything about batteries til a month ago. Me 'n Ryan have figured out how to roll our own that match top-end batteries. Sure, we'll screw it up the first few times. But once prototype works, we'll scale up and put the labour in. There are part-marks for tenacity.
> 
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haha. Back to the 'I'm SO broke' part. Will be used. But like really matters if pick test depth, drop it down unmanned, and never ever go near that depth again - and periodically test. 

The optima spiralcells have cylindrical cross-section. Precisely my thinking also. 
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try a search under 'battery design' and software.
saw some nice stuff on wetcell and dryair designs. Nice -better than nothing - 'in case of emergency break glass' - throw in water, or puncture seal and vacuum etc. 
anybody know how to reprogram a scuba dive computer for sub?
D