In the CLAP acronym, what does the letter C represent?

• A. Centrifugal
• B. Collective Stick Position
• C. Cabin Pressure
• D. Control Linkage

Answer: (B)

The letter C in this CLAP context points to the collective input—the position of the collective stick. In a helicopter, the collective controls all rotor blade pitch collectively, which directly sets lift. The exact amount of lift your helicopter produces is determined by how high or low you hold the collective stick, i.e., its position. So identifying C as the Collective Stick Position captures the specific control input that modulates overall rotor lift. Other terms like centrifugal effects, cabin environment, or the mechanical linkage don’t describe the pilot’s collective input, which is why this option is the best fit.