How much extra lift do you have?

[stangguy327]

I used the wing calculator and came up with a ballpark of 35 pounds that I would need to have for my wing. This is before a stage bottle, wreck reel, light, and any other tools I may add.
I will be diving both double 119's and 100's and will be in the cold waters of the northern atlantic with my drysuit. Do you think a 60 pound lift is to much?

On another note, what are the reasons to choose a 2" crotch strap over a 1" strap?

 

[rstofer]

The width of the crotch strap may seem terribly important if you happen to take a long stride off a boat.

Maybe it matters if you are being towed by a scooter?

I have used the calculator but only in the context of singles with a wetsuit.

Richard

 

[paddler3d]

You can get bigger D rings on 2" webbing vs. 1" webbing. I clip my reels and SMB to the D ring on my crotch strap on my butt. With the big D ring, it isn't easy. With a smaller D ring I could only imagine it would be harder.

All the local tech guys, diving with similar configs to yours, use 60# wings. They seem to baulk at larger one though.

 

[TSandM]

I use a 40 lb wing with double 80's, but it was strongly suggested to me that I go to a 55 or 60 lb wing for big double steels in Florida.

The 2" crotch strap is much more comfortable when scootering.

 

[fnfalman]

I used the wing calculator and came up with a ballpark of 35 pounds that I would need to have for my wing. This is before a stage bottle, wreck reel, light, and any other tools I may add.
I will be diving both double 119's and 100's and will be in the cold waters of the northern atlantic with my drysuit. Do you think a 60 pound lift is to much?

On another note, what are the reasons to choose a 2" crotch strap over a 1" strap?

60-lbs may be way too much or may not be enough. The only way you can get a good close estimate is to calculate for the negative and positive buoyancies of all your gears & equipment.

How negative are your tanks at full charge? How heavy are the manifolds? How heavy are the regulators? How heavy is your backplate? How much dive weight are you using if at all? How heavy are your cannister lights? How heavy is your dive knife (a 2-lbs shark killer might as well count as dive weight) or how big is your shellfish prybar? What's the positive buoyancy of your exposure suit?

Calc out all these items and you should have a pretty good scientific guess at what lift you'd require.