The projectile is positioned in a drop tube and impacted with a drop vehicle to simulate the forces created during {HEAD ~ firing} of {TAIL ~ the projectile} 
of
The projectile is positioned in a drop tube and impacted with a drop vehicle to simulate the forces created during { HEAD ~ firing } of { TAIL ~ the projectile }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL