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It seems fair to say that capital ships got increasingly vulnerable to air craft bombs and torpedoes, but fast and thinly armored targets from destroyer size and down would be increasingly harder to hit.
What would be/was the most effective air borne weapons against such targets?
Many smaller bombs
30/37/40/57/75 mm cannon fire
I honestly don't know and I've been playing around with the search strings. Let me hear some opinions or insights.