In multiengine aircraft, what does the normal fuel crossfeed system provide?

The normal fuel crossfeed system in multiengine aircraft is designed to maintain a balanced fuel load condition. This function is critical for ensuring stable aircraft operation, particularly during various stages of flight. When one engine consumes fuel at a different rate than the other(s), the crossfeed system allows fuel to be transferred from one tank to another, helping to equalize the fuel distribution. This balanced condition is essential not only for optimized performance but also for maintaining proper aircraft handling characteristics. By keeping the fuel load balanced across the wings or engines, the crossfeed system supports symmetrical flight, which is crucial for safety and efficiency in multiengine operations.