Measure velocity of projectiles fired from various types of weapons.
What does a Chronograph Operator do?
Measures velocity of projectiles fired from various types and sizes of weapons to determine performance of weapon or ammunition, using chronograph: Loads and aims weapon and fires projectile through electron-beam screens that activate chronograph. Converts chronograph reading of elapsed time to velocity in feet-per-second, using reference charts. Records data on inspection forms and calculates average velocity of projectiles tested.