During the Korean War it was found that escorts were needed and no current aircraft could do the job and the aircraft was reborn as the F-101. However, the extreme long range of the B-36 was beyond that of any fighter and F-101's were reassigned to tactical duties. The F/RF-101 set a number of speed and point-to-point records shortly after its introduction in 1957.
A second version of the F-101 was produced, the F-101B, and was used as a high speed interceptor. It was armed with the Genie air to air missile and served as part of the North American Defense Command. A total of 17 squadrons were equipped with F-101Bs.
A third use evolved for the F-101 during the Vietnam Conflict. There, Voodoos were used as reconnaissance aircraft and its speed of nearly Mach 2 helped it survive over enemy territory. At the end of the Vietnam Conflict, F-101s were withdrawn from active service and transferred to Air National Guard units until their retirement in 1982.
The aircraft on display at Castle Air Museum is a "B" version and served with both the Air Force and a Texas Air National Guard unit until its retirement in 1982. For a time it was assigned to the 84th Fighter Interceptor Squadron at Castle Air Force Base and it is painted in the unit's former colors.