You are conducting the time portion of an impact and time registration and spot one airburst and 3 graze bursts. What is your correction?

• A. Up 20
• B. Down 20
• C. Up 10
• D. No correction

Answer: (A)

In time registration, you adjust the fuse timing to bring the observed burst pattern in line with where you expect the shell to detonate along its trajectory. Seeing both an airburst and several graze bursts means the current timing is a bit off and needs to be lengthened so the detonation occurs slightly later in the flight. Increasing the time correction by 20 units achieves that adjustment, nudging the bursts toward the lower part of the trajectory and toward graze-type results rather than high airbursts. So the correct action is to move the correction up by 20.