Which point indicates the direction of travel when entering the FARP?

The designated initial entry point is the correct choice as it specifically marks the point at which vehicles or aircraft should enter the Forward Area Refueling Point (FARP). This point is critical for ensuring orderly and safe entry into the area where refueling operations are conducted. It helps in organizing the flow of traffic and minimizing confusion among multiple assets entering the FARP.

Understanding this point is vital in tactical operations, where quick and effective refueling can significantly enhance mission performance. Knowing where to enter allows operators to maintain the integrity of the operation and adhere to safety protocols, ensuring that they do not inadvertently compromise the safety of fueling operations or create traffic conflicts.

In contrast, the other options serve different operational purposes. The post-stage area refers to a designated waiting area, while the arming/de-arming heading pertains to the direction concerning the weapon systems of the aircraft. The ingress/egress heading ambiguously represents general directions but does not specifically identify the entry point into the FARP itself, which is essential for this question. This clarity enhances situational awareness and streamlines operations, making the designated initial entry point crucial for successful missions in a tactical environment.