In the vertical speed mode, rotating the pitch wheel one click provides how much VVI change?

• A. 100 ft
• B. 200 ft
• C. 50 ft
• D. 10 ft

Answer: (A)

In vertical speed mode, the pitch wheel sets a fixed, gradual rate for climb or descent. Each detent of the wheel changes the target vertical speed by a consistent amount, specifically 100 feet per minute. So a single click up increases the desired vertical speed by +100 fpm, meaning the aircraft will start climbing at that rate (or descending more slowly if already climbing), and a single click down reduces the rate by -100 fpm. The autopilot then maneuvers the aircraft to achieve and hold that rate until you change the setting or switch modes. This fixed step size is what makes one click correspond to a 100 fpm change in VVI, which is why that option is the best answer.