Alan Payne wrote:
Looking to fill small bottle Aviation oxygen in Melbourne does anyone know where?
My experience when I purchased Alice's Mountain High O2 system lead me to /*not*/ try to get the bottle filled by BOC (or similar). Although BOC can (and probably does) fill aviation O2 bottles, trying to arrange this without knowing how to negotiate the labarynthine rules proved impossible.
My solution was to hire an "E" sized (medical) O2 cylinder from BOC, acquire an adaptor to link the two bottles together (Joe Luciani at Horsham can help here) and fill the bottle myself. Care needs to be exercised in the fill process to enure you do not overfill (so you need a guage on the bottle being filled) and everything must be grease free of course.
The advantage of filliing your own bottle is that you can take the system with you when you go to another site (such as to a comp). The only problem I have had is that it appears to be impossible to find 'dry breathing' oxygen (aviation or medical grade). When transfilling on a cold winter morning, I have once had the adiabatic cooling as the gas expanded into the smaller cylinder sufficient to freeze up the valve and stop the flow. This is could be a problem if flying above or even close to but below the freezing level as the same could happen to the valve on the aircraft O2 cylinder, but even in a Qld winter flying to 10,000ft this has not occurred (OAT -5C). As the Mountain High system is a pulsed system rather than continuous flow, it will be less prone to freezing - and of course it includes a very good audio warning when O2 stops flowing.
-- Robert Hart [EMAIL PROTECTED] +61 (0)438 385 533 http://www.hart.wattle.id.au _______________________________________________ Aus-soaring mailing list [email protected] To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
