BMS F-16C/D 4.34, Flight Manual

Page: 111 / 234

T.O. BMS1F-16CM-1 BMS 4.34 Change 2.00
BMS 4.34 Dash 1
© Red Dog 2012-2019
Page: 111
1.5.3. HUD with GEAR DOWN
When the landing gear is lowered some specific items are displayed or changed:
•
The Heading tape is moved higher in the HUD. It will go to 50 milliradians above the FPM or
on top of the HUD whichever is lower.
•
The AOA bracket is displayed and represents optimal AOA for landing. The top mark is 11°
AOA and the lower mark 15° AOA. The two marks correspond to the yellow and red chevrons
on the AOA indexer, just to the left of the HUD. On speed AOA for landing is obtained by
placing the FPM in the middle of the AOA bracket as pictured above, thus maintaining an AOA
around 13° (corresponding to the green
doughnut on the AOA indexer).
•
A dashed pitch line is also displayed
between the horizon line and the -5° pitch
line. It is the -2.5° pitch line that
represents the glideslope for landing.
•
When the gear is down the displayed
airspeed is always CAS, even if the
Speed switch on the HUD panel is set to
TAS or GND SPD. The ground heading
track (inverted triangle on the HUD
heading tape displayed with GND SPD)
is still displayed when the gear is down.
With ILS enabled you might have two
different carets on the heading tape: the
inverted V for the ILS heading and the
inverted triangle for the ground heading
track.
•
Some data blocks usually displayed on the bottom of the HUD are blanked to allow better
visibility of the critical HUD landing symbology.