>>64474400
The ones from the Osama raid were ostensibly from a cancelled black project and the only two of their kind, but no real guarantee that was the truth. Comanche iirc was cancelled more for being too expensive for a capability no longer deemed necessary more than for efficiency. Also if memory serves a decade or so ago when this was a much fresher story I believe a publication found some evidence that USAF or SOCOM was spending money on either a fresh look at the concept after they proved useful for the raid, or possibly the program was never actually discontinued just put on the back burner.