Rob - this interests me. Have you got any web references I can look at with regards to this (chemistry wasn't my strong point as a kid but I'm not a numptie with this stuff now)[b said:Quote[/b] (Rob Evans @ June 07 2003,00:11)]just remember if you get a Helium bend you won't just start off with a sore elbow - you'll drop like a sack of spuds.
Depends on what sorts of depths you're planning for really
<font color='#000F22'>Basicly run the rpofile on the computer with 20% He and without and compare the diferance.[b said:Quote[/b] (karl_winrow @ June 17 2003,21:39)]On the subject of trimix, can a mix with say 36% O2 and an appropraite %age of helium be treated the same as EANx36 with regard to no stop limits on nitrox tables. I would be interested in using it just to keep off the narcs.