Along with the various iterations of single-seat tiltrotors (especially a stealthy version shown HERE), Bell also proposed a more conventional helicopter for the Light Helicopter eXperimental program in the early 80’s. The artwork below was published in 1985 and depicts a single seat scout chopper with stealthy features. I have no data on this design; scale can be estimated based on the size of the human figures. It would doubtless have been a chore for a single pilot to handle; probably less problematic than a single-seat tiltrotor.
