When refueling and defueling at the same time, where does the fuel begin to defuel go in a type 3 system?

In a type 3 fuel system, the correct process during simultaneous refueling and defueling involves sending any defueled fuel directly to other aircraft being refueled. This is essential for maintaining efficiency in an operational environment where fuel resources are often shared among multiple aircraft.

When fuel is being removed from one aircraft (defueling), it can be redirected to supply fuel to another aircraft that is currently being refueled. This practice optimizes fuel usage, minimizes wastage, and provides a seamless flow in operations. By directing the defueled fuel to the aircraft that are in need of fuel, the logistics of fuel management are streamlined, allowing ground crews to operate more effectively and reducing the potential for fuel shortages.

The other options are not the primary method utilized in a type 3 system during concurrent operations. For instance, while directing defueled fuel to recovery tanks or trucks is part of fuel management, the focus during simultaneous operations leans towards inter-aircraft supply during refueling processes.