What's wrong with the OMS dual bladder 100#'s?

[trob09]

Mmm? Well I am not sure this will convince you but the OMS web site lists BC118-K as a Dual Bladder BC with 94#s of lift. I would ASSUME (I know I am setting myself up with that) that it is saying both bladders fully inflated will produce lift of 94#s. If you are correct that 2-94# bladders are included it would have to inflate to twice the size of the single bladder, 94# wing. Don't think that this happens. Mine seems to inflate to the same size as the single bladder.

As you pointed out in your discussion on redundancy, the objective of a dual bladder wing is not to inflate both bladders at the same time, it is to have a second bladder to use only if the primary bladder fails. Put another way, the Wing is designed to provide 94# of lift whether the primary or the secondary bladder is used.

If you inflate both bladders to the capacity of the outer shell, you are only inflating each bladder 1/2 way (or to whatever proportion the difference in inflator performance allows) A simple test would be to inflate both bladders until the OPV pops, deflate one of the bladders & see a). how much the wing shrinks and b). if you can inflate the one with air still in it more.

I have sent OMS an email to clarify this point.

 

[gdive]

EXCELLENT point. Let me know what OMS says - guess that $5 is still up for grabs. I'm heading to the lake!

As you pointed out in your discussion on redundancy, the objective of a dual bladder wing is not to inflate both bladders at the same time, it is to have a second bladder to use only if the primary bladder fails. Put another way, the Wing is designed to provide 94# of lift whether the primary or the secondary bladder is used.

If you inflate both bladders to the capacity of the outer shell, you are only inflating each bladder 1/2 way (or to whatever proportion the difference in inflator performance allows) A simple test would be to inflate both bladders until the OPV pops, deflate one of the bladders & see a). how much the wing shrinks and b). if you can inflate the one with air still in it more.

I have sent OMS an email to clarify this point.

 

[trob09]

EXCELLENT point. Let me know what OMS says - guess that $5 is still up for grabs. I'm heading to the lake!

Enjoy. I'll put the $5 in Escrow.

 

[gdive]

OK! One last one. Confirmed, dual 94# contains 2-bladders providing 94# of lift each. DOH! I will sulk off in shame to the lake. Oh yeah I am going diving so woohoo!

Enjoy. I'll put the $5 in Escrow.

 

[trob09]

OK! One last one. Confirmed, dual 94# contains 2-bladders providing 94# of lift each. DOH! I will sulk off in shame to the lake. Oh yeah I am going diving so woohoo!

Enjoy your dives! I'll use that $5 to have a drink on your behalf.

Tim

 

[KidK9]

Well anyway you slice it, I sold mine to a guy in Ireland off Ebay. I'm gonna pick up a DR Classic instead to do my cave training in.

 

[trob09]

Well anyway you slice it, I sold mine to a guy in Ireland off Ebay. I'm gonna pick up a DR Classic instead to do my cave training in.

The DR classic is a fine wing. Just get rid of the pull-dump on the inflator hose...

 

[KidK9]

Yeah, I've got that on order as well.

 

[trob09]

Yeah, I've got that on order as well.

Excellent. Where are you in Ohio. I grew up in NE Ohio and went to school in Cincinnati. Of course, that was several decades ago...

 

[KidK9]

Whoa! Originally from the nati. Where did you go to high school? I went to Fairfield for high school, but then did my under graduate and post graduate work at Ohio State.