It's not outside of HTC's realm. Warbirds had it, too. While relatively limited in use and numbers, it would be as interesting an addition as the B-17D might be. Different, not as capable, but still in the same family.
I could have swore there was a version with the 2x50cal in the nose but 4x30cal in the wings, though. Am I cross-mixing memories, or was there an early version like that?