Rebreather World - View Single Post

Drmike · 29th May 2008, 13:47

s

Quote: (Originally Posted by paulraymaekers)

I agree that WOB must be lowered, clear.
Problem is that we try to match it with what a reasonable fit large male can do for some time: 75l/min, and even more, at depth. So here we start having some 'discrimination'

you start designing to meet the limits, and mostly as a consequence the unit becomes 'bigger': bigger hoses, bigger mouthpiece, larger volumes. Al this means you get a heavier unit, with often more drag under water.

now here comes a 50kg, 1.55m female diver who want to start diving CCR, and wants do buy a unit that meets the safety limits....

?? how many small female boris divers are around?

regards

paul

yes but big bore doesnt necessarily have to mean heavy unit

The Sentinel (which apears to have the lowest wob (in upright position) is lighter than some mainstream units.

Putting a bigger bore dsv, good check valves and big hoses on a unit isnt going to make any real difference from a diveability or weight viewpoint at all but can in some cases significantly improve wob

the average ccr diver is a fat ugly man - i see very few babes -which is as shame :-(

bigger does mean more drag - so you need a good wob to swim it ! viscious circle

29th May 2008, 13:47	#557 (permalink)
Drmike Custom Title Allowed! Current Rebreather/s: MK 15.X Ouroboros Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2005 Posts: 3,157	Re: Comprehensive list of all accidents s Quote: (Originally Posted by paulraymaekers) I agree that WOB must be lowered, clear. Problem is that we try to match it with what a reasonable fit large male can do for some time: 75l/min, and even more, at depth. So here we start having some 'discrimination' you start designing to meet the limits, and mostly as a consequence the unit becomes 'bigger': bigger hoses, bigger mouthpiece, larger volumes. Al this means you get a heavier unit, with often more drag under water. now here comes a 50kg, 1.55m female diver who want to start diving CCR, and wants do buy a unit that meets the safety limits.... ?? how many small female boris divers are around? regards paul yes but big bore doesnt necessarily have to mean heavy unit The Sentinel (which apears to have the lowest wob (in upright position) is lighter than some mainstream units. Putting a bigger bore dsv, good check valves and big hoses on a unit isnt going to make any real difference from a diveability or weight viewpoint at all but can in some cases significantly improve wob the average ccr diver is a fat ugly man - i see very few babes -which is as shame :-( bigger does mean more drag - so you need a good wob to swim it ! viscious circle __________________ Cave diving is a sport Wreck diving is a sport Diving in general is a sport 'Rebreather diving' is not a sport its the delusional obsession with a highly dangerous and often inappropriate piece of equipment Last edited by Drmike : 29th May 2008 at 13:55.
(Offline)