I would imagine in those days it would not be droppable but installed to increase range for ferrying, distant bases, etc. In this scale, I don't think it would be a big problem fabricating in 3D. The C model P-47s carried a large round underbelly ferry tank for such a purpose until they came up with the centerline drop tank and eventually wing tanks/ordnance.
I'm still a bit hazy on the Navy F4B and the Army P-12. Were they essentially the same airframe but modified specifically for the needs of the different services?
I'm still a bit hazy on the Navy F4B and the Army P-12. Were they essentially the same airframe but modified specifically for the needs of the different services?





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