Quote: (Originally Posted by montyg)
Please excuse all the third hand "someone said so" below but I don't have first hand experience here and I am trying to find out ...
Well, as both Stuart, Marco and myself all have/have dived the EDO that is quite a bit of first hand info.
Quote: (Originally Posted by montyg)
I am very curious about work of breathing on this unit since the counterlung is below the scrubber and thus quite low on the back. From what I've been told about the RB80 ( and I believe the EDO is very similar ) is that in a head down position people sometimes have to use the OC/CC DSV because WOB is very hard.
If you are head up or head down the position of the counterlung does make breathing very hard, this is why the RB80 comes with an OC/CC DSV, and also why I fitted one to my EDO.
Quote: (Originally Posted by montyg)
I've also read some allegations that it works fine for scootering with a 'heads up' attitude because the bellows are located favourably in relation to the lung centroid in that attitude.
This is because the RB80 was designed for long and deep cave penetrations, where scooters are life support equipment. Think about it, when scootering, the counterlung would be perfectly in line with your lungs, thereby minimising WOB.
Quote: (Originally Posted by montyg)
There's some talk about the elasticity of the counterlung being teaked in a way that eases WOB ?
Ask db8us about this one, he might be able to find out from Reinhard.