What is the maximum number of main wheel chord limits for out and back operations?

The maximum number of main wheel chord limits for out and back operations being two chords can be understood through considerations of aircraft balance, performance, and safety. In this context, "chord" refers to a specific measurement that typically relates to the plane's center of gravity and weight distribution during operations.

Limiting the main wheel chord to two ensures that the aircraft maintains a stable center of gravity, which is crucial for safe takeoffs, landings, and in-flight handling. Keeping within this limit helps to manage the aircraft's weight and balance more effectively, preventing potential adverse flight characteristics that could arise from an uneven distribution of weight.

In flight operations, especially those involving takeoffs and landings on variable surfaces or during out and back type missions, these chord limits provide a safeguard. They minimize risks associated with overloading certain parts of the aircraft and contribute to overall stability throughout the operation.

Other options suggest either fewer limits or no limits at all, which can increase the risks associated with aircraft handling and performance, making the selected option the most prudent choice.