Quote:
Originally Posted by marchand
Would you agree that 44#'s would be enough for double HP120's? I think that 44#'s is plenty for anything I am going to do in the near future, and, as long as the price isn't in the $400 range, I would rather make my current wing redundant than buy a a new wing.
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On the wing, from my ranger wing, its about 35-38lbs of lift. For some reason, all BC makers use optimistic numbers (my 55lb wing is more like 50lb). Also, by adding another bladder, you are going to reduce its internal capacity of the original thus lowering its rated lift.
Starting from scratch, to calculate what wing you need, look at your gear first. This is basically the BC, tanks, regs, bands and manifold. You do this full so its the worst case to deal with.
Tanks (2) = 10.7lbs neg each or about 21.5lbs
<deleted air reference>
Bands/regs = 3lbs or so neg weight 3lbs
<deleted stuff about not enough lift>
EDIT: Bad math. Doubled counted the air weight.