Which aircraft sensor posture is when the lead aircraft's responsibility is the friendly force, and the wing aircraft is primarily responsible for scanning the objective?

The correct choice is neutral posture, which refers to the operational stance where the lead aircraft focuses on the safety and coordination of friendly forces while the wing aircraft directs its attention toward scanning and assessing the enemy objective. This configuration allows for effective situational awareness and coverage of both the forces involved and the area of interest.

In neutral posture, the lead aircraft's responsibilities include maintaining the integrity and security of friendly units, communicating necessary information as it pertains to their operations, and ensuring that any threat directed at friendly forces is managed. Meanwhile, the wing aircraft, by concentrating on the objective, is tasked with gathering intelligence, identifying targets, and preparing for possible engagement while remaining aware of the position of friendly forces.

Understanding this balance in focus is crucial for effective coordination in an operational environment and highlights the division of responsibilities between lead and wing aircraft, ensuring neither aspect of the mission – friendly protection and objective engagement – is neglected.