I am in hopes that one of you can find a larger photo of the P-51 in the first phot. It is a modified Cavalier P-51 mustang with 106mm recoilless rifles on the wing tips! It was being tested by the Marine Corp at China Lake test range in the 70s. The second photo is not much better. The last two photos show the first plane and another Cavalier with wing tanks, and used as chase planes for the AH-56 "Cheyenne" helicopter during the late 60s, early 70s before the program was canceled. Striking airplanes in their Army paint scheme, and among the last P-51s to operate with the military. The last was a more stock P-51D 44-72990, N6322T, which operated with the Army at Edwards until 1978. The P-51 had come full circle, starting and ending under the management of the U.S. Army!