BMS F-16C/D 4.34, Flight Manual

Page: 57 / 234

T.O. BMS1F-16CM-1 BMS 4.34 Change 2.00
BMS 4.34 Dash 1
© Red Dog 2012-2019
Page: 57
1.2.5.3 HUD panel
The HUD panel allows the pilot to customise the Head Up
Display. The panel is arranged in 2 rows of 4 toggle switches:
•
The VV/VAH
– VAH – OFF switch refers to the vertical
velocity scales found on the HUD.
In VV/VAH in addition to the vertical velocity scale there
is also a bank angle (15°/30°/45°/60°) indicator on the
FPM. In VAH there is a roll indicator below the heading tape (unless you have chosen to
display the DED or PFL in the HUD) with 10°/20°/30° and 45° cues. In OFF no scales or
bank/roll indication is displayed.
•
The ATT/FPM
– FPM – OFF switch refers to the pitch ladder and flight path markers (FPM).
In ATT/FPM, both the pitch ladder and flight path marker are displayed. In FPM only the flight
path marker is displayed. In OFF neither pitch ladder nor FPM is displayed.
•
The DED DATA
– PFL – OFF switch adds DED or PFL data to the bottom part of the HUD as
display repeaters.
When the switch is in DED DATA the DED is displayed in the HUD.
When the switch is centred on PFL the Pilot Fault List is displayed on the bottom of the HUD.
When the switch is set to OFF neither the DED nor the PFL is displayed on the HUD.
•
The DEPR RET switch is a three-position switch labelled STBY, PRI and OFF. It is used for
standby bombing mode.
•
The CAS
–TAS – GND SPD switch controls display of the speed scale on the left of the HUD.
When CAS is selected the speed tape shows the Calibrated Airspeed. CAS is Indicated
airspeed (IAS) corrected for position & instrument error.
When TAS is selected the speed tape shows the True Airspeed. TAS is CAS corrected for
pressure altitude, so it is the airspeed in the air mass at this altitude.
When the switch is set to GND SPD, the HUD tape shows the speed over the ground.
Groundspeed is TAS corrected for winds.
In GND SPD a caret is also displayed on the heading tape. The caret means the system is
now in wind corrected ground track as opposed to showing heading as magnetic track.
Please note that whenever the landing gear is lowered the HUD airspeed automatically
reverts back to CAS, irrespective of the switch position.
•
The ALT switch is a three-position switch labelled RADAR, BARO and AUTO and is relevant
to the altitude scale on the right of the HUD.
RADAR - the altitude tape indicates radar altitude.
BARO - the altitude tape indicates barometric altitude.
AUTO - the altitude tape indicates barometric altitude above 1500 feet and switches to radar
altitude below 1500feet.
More information can be found in the HUD chapter.
BMS Key Callbacks for the HUD panel:
SimHUDVelocityCAS
SimHUDVelocityTAS
SimHUDVelocityGND
SimHUDVelocity
SimHUDVelocityUp
SimHUDVelocityDown
SimHUDAltRadar
SimHUDAltBaro
SimHUDAltAuto
SimHUDRadar
SimHUDAltUp
SimHUDAltDown
SimHUDBrtDay
SimHUDBrtAuto
SimHUDBrtNight