What would be the point in twin-boom and single tail? Sure, it's not impossible but it's pointless. I thought you might have had at least some aircraft in the list but no, again I thought too highly of you. You got my hopes up there, lanc and then crushed them.
So, the P-38 is twin-boom since there isn't a twin-boom, single tailed aircraft anywhere.
So, the P-38 is twin-boom since there isn't a twin-boom, single tailed aircraft anywhere.