T.O. BMS1F-16CM-1
BMS 4.34 Change 2.00
BMS 4.34 Dash 1
© Red Dog 2012-2019
Page: 54
1.2.5.1 SNSR PWR Panel
The SENSOR panel features 4 toggle switches. The two left
most are power switches for the two chin intake pylons (LEFT
HDPT and RIGHT HDPT).
These pylons can carry pods (SNIPER, LANTIRN, HTS) and need power to function properly. With
the switches in OFF the pods get no power and will not work. Note also that some of these pods need
time after powering them up to be operational, so power up the pylons early enough in your flight.
The FCR switch is a two-state switch that powers up the Fire Control Radar (FCR). When powered up
the FCR enters a Power ON Built-In Test (PO BIT) mode, visible on the MFD. The BIT lasts about 3
minutes after which the radar is set to standby, unless previously set to a specific mode. The PO BIT
can't be interrupted in the middle of the test. The only way to 'truly' interrupt it is to turn the radar off.
Since the FCR is off at Ramp the FCR PO BIT has to be run completely when starting the jet from
cold for the FCR to function properly.
The PO (3 minute) BIT is performed whenever the radar power is switched to OFF for more than 4
seconds and then back on. A shorter Manual BIT lasting about 30 seconds can also be performed
through the MFD TEST page (OSB #19 FCR) or by switching the FCR switch to OFF for less than 4
seconds and then back on.
The RDR ALT switch is a three-position switch used to operate the radar
altimeter. With the switch in OFF the radar altimeter is inoperative. In STBY
the radar altimeter is placed in standby mode (used on the ground to avoid
frying your crew-chief). In RDR ALT the radar altimeter is fully operative.
RALT BIT is implemented and visible from the MFD TEST page (OSB 7).
When the radar altimeter is active the radar altitude can be read in the HUD in
the box preceded by the letter R.
Certain conditions must be met for the Radar altitude to be displayed. Those
conditions depend on altitude:
Low level the RALT will blank past 30° pitch and approximately 90° bank.
High altitude the RALT will blank above 10° pitch and approximately 75° bank.
Note the comma that remains displayed, even when the altitude is blanked.
BMS Key Callbacks for the Sensor panel:
SimLeftHptPower (toggle)
SimLeftHptOn
SimLeftHptOff
SimRightHptPower (toggle)
SimRightHptOn
SimRightHptOff
SimFCRPower (toggle)
SimFCROn
SimFCROff
SimRALTSTDBY
SimRALTON
SimRALTOFF
SimRALTUp
SimRALTDown
Summary of Contents for F-16C/D 4.34
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