What is the acceptable range for the center of gravity on an aircraft?

The acceptable range for the center of gravity (CG) on an aircraft is specified in the aircraft's flight manual. This manual provides detailed guidelines about the aircraft's loading, including weight distribution and the resulting impact on the CG. The CG is critical for maintaining proper flight characteristics, stability, and control, and therefore, it must fall within the prescribed limits set forth by the manufacturer. These limits take into account factors such as the aircraft's design, structural integrity, and performance requirements.

While it may seem tempting to think that CG could be adjusted or interpreted by the loading crew or based solely on variables like fuel levels, relying on the specific recommendations provided in the flight manual is crucial for safe operations. This ensures that any alterations due to cargo loading or fuel consumption are taken into consideration within the established safety parameters rather than leaving them up to subjective judgment.