Name the two methods of crater analysis for low angle (artillery) fire.

• A. Fuze Furrow
• B. Side Spray Method
• C. Fuze Furrow, Side Spray Method
• D. Crater Analysis Method

Answer: (C)

In crater analysis for low-angle fire, you use two standard methods to extract firing data from the crater and surrounding ground. The first is the fuze furrow method. This looks for the linear furrows or grooves caused by the fuze action in the ground. The orientation of these furrows relative to the crater tells you which way the shell came from and helps trace the flight path back toward the firing point.

The second method is the side spray method. This examines how fragmentation and soil are distributed around the crater, especially along its rim. The pattern of spray tends to lean toward the side the shell was traveling, providing another clue to the firing direction and approximate range.

Using both methods together gives a more reliable picture because they rely on different crater features—the furrow lines from the fuze and the fragmentation/distribution from the side spray—so they complement each other.