How do you calculate the amount of lift needed?

[DragonflyDrew]

I am looking into getting a Harness and Wing set-up and want to eventually dive twins, but not sure how you tell or calculate how much lift the wing needs to have. Any pointers on how to calculate this?

Thanks in advance

 

[j2s]

There have been several posts/threads on SB about the subject....But there are so many variables; your size, weight, tank type, salt/fresh etc. And the charts are only a 'rule of thumb' guide line...They'll get you close but only practice w/your equipment will get it spot on......

 

[Lemna]

Obligatory link: "the ultimate wing lift calculator".