Help with amounf of lift

[stas]

Hi everyone,

I'm assembeling a bp/w rig for a single tank for the northeast. I will be mostly wearing:
DUI cf200 drysuit
SS backplate + STA
Steel (approx) 100 cf cylinder + 30 or 40 cf pony

I can't decide how much lift I need in the wing. I am debating between the Oxycheq Signature 30 or 40, the Gloem 35, and maybe the DR venture wing (though probably not it).

I would also like this wing to work on an aluminum plate in warm water which most likely means al 80, 3-5 mil wetsuit and no pony.

Can you guys suggest if you thing one wing will handle both requirements and with what lift you would go with.
Thanks, Stas

 

[PerroneFord]

If it were ME in that spot, I'd be looking at a 35-40. That drysuit is going to need some weight. And that weight is going to need to offset with the wing. I am not a cold water diver, so hopefully you'll get some better qualified opinions. But that's just my take on it.

 

[stas]

Sorry, Oxycheq sinuture 30 or 45, they don't have a 40.
Tanks, Stas

 

[DA Aquamaster]

For cold water diving with either a dry suit or a wet suit, I prefer a 45lb wing. Your drysuit will carry quite a bit of the load and in normal circumstances less lift would be adequate. But you need to plan for the possibility of a flooded suit and will want enough lift in the wing to ascend from depth without having to dump weights or continually swim upward during a safety or deco stop.

And there are other things to consider. With a 100 cu ft tank you have a little more swing weight than with an 80, plus when using a 30 or 40 cu ft pony (if you sling it) you want to weight yourself so you are neutral without it, which means you end up being 3-5 pounds negative with it along and full of gas.

There are two sides of the argument and there are pros and cons either way, but overall, I think it's better to have a slightly too large wing than a slightly too small wing.

 

[stas]

DA Aquamaster,
I also think that 45 for be better for the cold stuff. But do you thing it will be to large in a warm water setting? Are you familiar with size diffrences between 45 and 30-35 wings for some manufactueres (say oxycheq, halcyon, etc).
Thanks for your thoughts,
Stas

 

[crlavoie]

DA Aquamaster,
I also think that 45 for be better for the cold stuff. But do you thing it will be to large in a warm water setting? Are you familiar with size diffrences between 45 and 30-35 wings for some manufactueres (say oxycheq, halcyon, etc).
Thanks for your thoughts,
Stas

Speaking with Larry at Scubatoys, the difference between the Oxy 45# and the 30# is barely noticeable. He offered to throw it on the web cam. You might want to talk to him.... not to mention he has a pretty good price on them.