Abstract: A mechanism for releasably holding and pre-heating a model, prior to launch of the model by and from a gun. The model is initially held in a collar of the mechanism in the breech of the gun, and is pre-heated by an induction coil and an r-f current. The coil is then removed, and the model and the collar are propelled forward through the breech by pressurized hydrogen gas, with the breech being closed and with the heated model being inserted into the launch tube (i.e., the "barrel") the gun. The gun is then fired, and the heated model is launched, without any significant cooling of the model. Some advantages of this mechanism are a quick "heat-and-fire" cycle, and the simplicity in structure and in operation of the mechanism.

Abstract: A projectile guide track having a plurality of track assemblies in aligned relationship with one another. Each track assembly contains fixedly spaced rails for supporting a projectile during flight while undergoing testing in a ballistic range. Precision machining allows for a plurality of different sized rails to be used with a plurality of track assemblies thereby accommodating projectiles of various dimensions.

Abstract: A projectile recovery system where projectile speed is progressively reduced as the projectile passes through decelerator tubes. These tubes are precharged to high pressure in front of the projectile to minimize the decelerating distance. Quick opening valves, which separate the deceleration tubes and which seal them for pressurization, are opened as the projectile approaches so they will not be struck by the projectile with resulting damage.