ALE Doctrine Practice Test

BRASSCRAFO helps analysts remember factors that shape rotorcraft signatures on sensors, including how rotor wash affects what you see. Rotor wash is the downwash from the rotor that stirs up air, debris, and moisture, creating turbulence and clutter that can change the signature around a helicopter. When the question asks for a consideration related to rotor wash, the term that directly matches the phenomenon you’re evaluating is rotor wash itself—the effects of that downwash on the sensor image or signature. The other terms are general BRASSCRAFO factors (background clutter, distance to the target, and shadow effects) but they aren’t the rotor-wash phenomenon you’re assessing.