Which system is typically used for fuel jettisoning in aircraft?

The correct choice highlights that fuel jettisoning systems in aircraft usually utilize a common manifold connected to outlets located in each wing. This design is efficient because it allows for the quick and controlled release of fuel from both wings, helping to achieve a desired weight for landing while maintaining balance and stability during the process.

By routing the fuel through a common manifold, the system ensures that fuel can be evenly jettisoned from both sides of the aircraft. This is crucial for managing the center of gravity, especially when an aircraft is required to lighten its load for landing or in the event of an emergency. The outlet configuration also facilitates efficient operation, allowing for a more streamlined process during fuel jettisoning without the need for complex plumbing or additional components that could increase weight or potential failure points.

Other options do not capture the functionality and design commonly used in aircraft for fuel jettisoning. A common drain system, while used for draining fuel, does not provide the necessary controlled jettisoning capability. A single outlet in the tail is not practical for balanced fuel release and would risk altering the aircraft's center of gravity unfavorably. A dedicated jettison tank, while it may sound plausible, is not typically employed in modern aircraft designs