Which item is listed as a disadvantage of the airplane?

• A. The rudders don't come forward and airspeed indications on the pilot and co-pilot side are off by 10 knots; therefore, when not flying as PIC I must always refer to the PIC flight instruments.
• B. It has exceptional fuel economy.
• C. It is unable to fly at high altitudes.
• D. It has very stable airspeed indications.

Answer: (A)

The main idea here is that reliability of flight data and control surfaces is essential for safe, predictable flight. A listed disadvantage is one that directly compromises control and situational awareness.

In this scenario, the rudders not moving forward indicates a possible control surface or linkage fault, and having airspeed indicators on the two sides reading differently by 10 knots signals a significant instrumentation discrepancy. Together, these faults create confusion about speed and yaw control, increase pilot workload, and reduce redundancy. Because of that, a pilot not acting as PIC would have to rely on the PIC’s flight instruments, which adds coordination challenges and safety risk. This combination is clearly a disadvantage because it undermines control authority and data reliability.

The other options describe favorable or neutral characteristics (excellent fuel economy, high-altitude capability, stable speed readings), which are not disadvantages.