Also keep in mind that F4U1-A had "wet wings", I.E. Fuel tanks on wings, that in D version were deleted. If Chog is a development of Ahog then it should have those tanks, too (and their weight, too).
RAM, you need to look at the way fuel management changed on the Corsair from the -1A to the -1D.
From the -1A to the -1D, yes they deleted the wing tanks, but increased the amount of drop tank fuel available.
And I will have to look this up, but I believe that the -1A even with the internal wing tanks, still weighed less than the -1D.
So really unless your carrying very large internal fuel loads, you won't see much difference between the two.
If anything at the same total max fuel loads of the two, the -1A has an advantage, because its fuel is internal, where the -1D is external and creates more drag.
As to the direct issue of the -1C, I find conflicting information as too whether its a derivative of the -1A or the -1D. I honestly don't know which its suppose to be, and unless we can find someone who actually worked on one in the factory, we'll probably never know.
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Vermillion
**MOL**, Men of Leisure
