What size wing for doubles

[grouchyturtle]

1st of all I'm not ready to go to doubles yet.

I dive dry and when I do it will probably be E7 100s. May eventually go the tech route or at least Advanced Nitrox/Deco, so I'd at least be carrying a smaller stage.

What size wing would I need?

Only reason I'm asking is I may be able to get a good deal on an Explorer, so I figured I may as well get it now.

 

[scubaotter]

My husband sometimes dives dual tanks. I think his wing lift is 100 punds. I hope this helps.

 

[Northeastwrecks]

I dive dual LP104's with a 55 lb wing. It works quite well, even when I'm wearing a stage.

IMHO, larger wings are not necessary.

 

[lamont]

Can't you say that as a general rule for sizing any wing (doubles or singles) that you take the amount you need to keep yourself neutral at your final stop with no air, plus the amount of air that you're carrying, then subtract off your weightbelt and that your wing should be at least that big -- in other words, you can float your rig at the surface when you start the dive.

So for me, worst case with no weightbelt, I need 20# + 10# for my singles wing (which means my eclipse 40# wing is sized pretty good, although its overkill because i do use a weightbelt) and I need 20# + 20# + 5# for doubling up and carrying a deco stage (so 55# should be good).

For a wetsuit you need to make sure that you can get neutral after you descend at the beginning of a dive. If you're not wearing a weightbelt, its easy since you're still going to be a little bit positive at the bottom and if you can float your rig at the surface you'll still be able to get neutral at the bottom. If you wear a weightbelt, then you need to figure out how negative you'll be with the weightbelt (and your wesuit crushed at the bottom) and add it to the rig weight and make sure your wing could still float that much.