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