Bell YH-12B           46-217                                     (c/n  4)

                                     The Bell H-12 was an enlarged version of the Model 47, and was originally designated the XR-12.
                                     It proved unsatisfactory in tests and only two prototype XR-12s, one XR-12B and ten pre-production
                                     YR-12Bs were built.  The machine above was the first of the YH-12Bs, the designation for choppers
                                     having been changed, at that time, from "R" to "H". .