What we have here is the final phase of a Regulus Fleet Training Missile mission
The missile has just touched down and the parabreak has deployed
The launch team will recover the bird and turn it around for another mission
The final step of the dio is to show the Able aircraft ( a TV-2 which is an Air Force T-33) that controls the missile during takeoff and landing passing overhead. The TV-2 is now in the process of being built
Richard