The Minuteman Car No. 3665 would open the roof sections and fire a missile with the use of a 6019 or USC uncoupling track section. Made from 1961 through 1964, this car has three variations. The most common is the DARK BLUE roof variation that is illustrated. There is a LIGHT BLUE roof, and a version that was created on the No. 3619 body mold. Both of these variations are somewhat scarce. The car was equipped with AAR trucks with disc couplers.