| Re: $1700 one-time-use bailout
Let's do some maths
THe cylinders are (according to their scale) about 3.75cm wide and 8cm long not counting the tops and bottoms.
A cylinder of that size has a volume of about 90 cubic centimetres - if the walls have no thickness. Let's be generous and say 90cc for the whole thing counting the tops and bottoms and allowing a little bit for wall thickness.
If you fill two of them to 9400 psi (say 640 Bar) then you have a total gas volume of (drum roll) 115 litres.
If you use it then you get to pay $1700 for a refill.
Altenatively, if you really want about 1/5th of the bailout available from a BOV on a 3l cylinder, then you could buy 2 Spare Airs. (One obviously wouldn't be enough because it only has a capacity of 85 litres)
Mind you if you only fill it to 4900 psi then it's only got about 60l of air in it - a lot lesss than the Spare Air.
Just to labout the point. If you're a bit frightened at 50m and taking 2 litre breaths, each breath is going to cost you about $176 and you won't quite get 10 of them.
Dave T |