FLIGHT TRAINING INSTRUCTION T-45 WEAPONS/STRIKE - Cnatra

T-45 WEAPONS/STRIKE CHAPTER ONE
The scratch pad displays wind direction (WD) and the last entered wind-direction value. Enter
the forecast wind direction for the release altitude at the target and press ENT. The scratch pad
then displays wind speed (WS) and the current wind-speed value. Enter the forecast wind speed
for the release altitude at the target and press ENT. The scratch pad displays target height (TH)
and the current target height value. Enter the height of the target and press ENT.
Second, set the sight depression angle in mils. Set the weapons selector to BOMBS to get the airto-ground
depressed sight line (DSL) submode for bombs. Just below the radar altitude, BOMBS
covered by an “X” and “140” will be displayed. BOMBS indicates that you are in the DSL
submode, X indicates that the master armament switch is set to SAFE, and 140 represents the
default mil setting for bombs. You can increase the displayed mil setting by pressing the top “+”
of the SET DEP key or decrease the mil setting by pressing the bottom “-” of the SET DEP key.
Selecting ROCKETS or GUN A/G on the weapons selector will switch the display to the default
mil setting for rockets or guns. Their mil settings can be changed with the SET DEP key.
To set the continuously computed impact point (CCIP), press the MODE key after selecting one
of the air-to-ground modes on the weapons selector. Pressing the MODE key again will return
the display to the DSL submode. After entering air-to-ground data, set the weapons selector to
OFF to return the HUD to the navigation master mode.
The target data, submode (DSL or CCIP), and the mil settings will be retained in the HUD’s
memory even if the HUD is switched to another master mode or turned off in flight. In the target
area, place the weapons selector to BOMBS, ROCKETS, or GUN A/G and press the station or
gun select switch as appropriate for the weapon you are going to use. Also set the VCR switch to
ON or AUTO as briefed. You can update target data and change mil settings in flight by
following the same procedures listed above.
T-45A HUD AIR-TO-GROUND SYMBOLOGY
In air-to-ground mode the aircraft symbol is displayed on the waterline, and bank angle
indicators are not displayed. Because you are maneuvering in relation to the target, your specific
bank angle is not important; the pitch bars will still be displayed, and you can use them as a
wings level reference in the tracking run.
The “X” over BOMBS, indicating that the master armament switch on the weapons selector
panel is set to SAFE, is removed when the master armament switch is set to ARM . The DSL
A/G aiming reticle consists of two concentric dashed rings around the pipper. The inner ring has
a radius of 25 mils and the outer ring has a radius of 50 mils. Below the outer ring are two
reference marks at 75 and 100 mils (Figure 3-10).
A breakaway cross appears in the middle of the PDU to indicate that you must initiate your dive
recovery immediately. The breakaway cross is removed when the aircraft begins to climb. The
breakaway cross is displayed only when the HUD determines that, with normal pilot reaction
time and a normal 4g recovery, the aircraft would bottom out with 1,000 ft or less of ground
clearance. The breakaway cross function is disabled for a dive angle of less than 15 degrees.
T-45 ARMAMENT CONTROLS AND INDICATORS 1-19