RELEASE AIRSPEED/MACH NUMBER
Release airspeed is a true airspeed. The head-up display (HUD) in the T-45C has a true airspeed
readout, but as a backup, you need an indicated airspeed or mach number, whichever is easier to
read on your aircraft instruments. The HUD has an indicated airspeed and a mach readout, but a
failure affecting true airspeed would probably affect these readouts. Instrument panel indicated
airspeed/mach is a good backup for the HUD. If you want to use mach, you will have to compute it
using the NATOPS table.
Z diagrams are useful presentations of pattern and weaponeering information included on briefing
boards and kneeboard cards (Figure 2).
Initial Pipper Placement
Figure 2: Z DIAGRAM