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I also have a 30lb eclipse, and I have a 40lb oxycheq to compare. let me take a shot at it too. The face that it is bigger on top really didn't do anything when diving. Assuming diver is properly weighted and in trim, the wing should take on the weight of the gas at most, so about 6-8lb at most, so the wing is almost empty, most if not all the air will be on the side of the wing, slightly wrap around the tank. So the bigger top is really only making difference when the wing is inflated to near full capacity, which only happen on surface.
I used to think Eclipse wing shape is wrong too, until I tried one, and I actually find it is easier to dive than oxycheq, mainly I can fell eclipse is easier to vent than oxycheq.
I own one, so I'll take a shot at it.
Using a nearly empty tank (say 40 or 50 Bar), the common aluminum 80 is going to become more buoyant at the bottom of the tank.
Watch how an aluminum 80 floats in the water by itself....valve heavy...butt light.
When you add the weight of the 1st stage to it, then it would be the upper part of the tank that would need the additional flotation and not the bottom.
The Eclipse wing is only slightly larger at the top, so I don't believe it's having that big of an effect.
I'll wait for the official answer and see how close I got.
Take care,
Mitch
.... Jet fins n straps 2kg underwater
Hi,
I have seen a lot of wings that are bigger at the bottom and not the top so I'm curious why the Halcyon eclipse wing is larger on the top.
Thanks
Maybe time to switch to a pair of lighter fins for warm water diving. I am extremely leg heavy too. No chance I can be in trim in jet fins in wetsuit, warm or cold (thin or thick wetsuit). For warm water, I use a pair of OMS slipstream with spring strap. I am still abit leg heavy. I need to put 2-4lb on top camband. This is with Oxycheq Mach V 40lb wing, AL plate, canister light on waist harness, titanium 1st stage, AL80. Not sure if the weight (lack of) Ti 1st stage has anything to do with this.
Anyway, if you put 1.7kg (~3.5lb) of lift in a 30lb H wing, I doubt air will be in the top arc at all. It is not the highest part if diver is in trim