Figure 6-2 "Z" Diagram

SECTION LOW ALTITUDE TACTICS AND PROCEDURES

CHAPTER SIX

Figure 6-2 "Z" Diagram

The "Z" Diagram provides a thumbnail sketch of the profile the crew must fly to put the aircraft

in position for an accurate weapons delivery. The above example will be used during WEPS 1

and 2 (Figure 6-2).

In the example, it is clear the attack will commence from an altitude of 1500 feet AGL, at an

airspeed of 250 KIAS. A tactical "pop" maneuver will put the aircraft at this altitude and

airspeed from the planned low-level ingress parameters of 500 feet AGL and 360 KIAS. An

intermediate target attack may also be conducted prior to the IP from the planned 300 KIAS

airspeed. The details of the "pop" will be covered later in this chapter.

Continuing down from the top of the "Z" Diagram we see that the planned dive angle is 10

degrees. The next checkpoint is the "Standby" call, which will be made over ICS by the student.

This call serves as a preparatory call for the imminent weapon release call. In the above

example, this "standby" call is made at 1300 feet AGL.

Next, the "Z" Diagram defines the planned weapon release altitude and airspeed. At 1000 feet

AGL the OUI will call "Pickle" on the ICS, pause about half a second, and then call "Pull". At

the release altitude, the aircraft should be at 300 KIAS. "Pickle" is the traditional aviator term

for weapon release. The purpose of the pause before initiation of the off target pull is to ensure

adequate and safe separation of ordnance from the aircraft.

SECTION LOW ALTITUDE TACTICS AND PROCEDURES 6-9