What functionality does the compute option in ALIS provide to users?

The compute option in ALIS (Airline Load Information System) is designed to facilitate the planning of load distribution while also allowing users to view the Aft Index. This is a critical functionality for ensuring that aircraft are loaded efficiently and safely, adhering to weight and balance regulations. The ability to compute and visualize load distribution aids flight planners and crew in making informed decisions about how cargo and passengers are distributed within the aircraft to maintain optimal performance and safety standards.

By focusing on load distribution, users can maximize the aircraft's capacity while ensuring that the center of gravity remains within prescribed limits. This is crucial because improper load distribution can lead to handling issues during takeoff, flight, and landing, potentially compromising safety.

The other options, while related to flight operations, do not specifically highlight the primary function of the compute option, which is centered on load planning and the Aft Index. Options that describe historical data, automatic forecasts, or printing functions do not capture the specific purpose of the compute feature in supporting load distribution and Aft Index calculations.