User manual

F4-BMS 2.0 Technical Manual
automatically from RWS search hits (solid squares) when the radar receives two hits (meaning
the radar detects something twice) in 6.5 seconds. The radar is able to track 10 targets
simultaneously. Since the radar does not pause on the track files while scanning, the track’s
positions are extrapolated in between updates (when the radar detects them again). If a target is
not updated, i.e., detected in 13 seconds, the radar will dump the track file until the target is
detected again upon which it will rebuild it into a track file. A dump could happen for a number of
reasons including a target moving out of the radar’s current azimuth scan, elevation scan, or
both. Also for example, if the pilot is tracking 10 targets and decides to designate on a search
target, the radar will dump the lowest priority track and automatically upgrade the search target
into a track file. If the radar has not received a hit on a track on its return scan where the track
should be (or rather, where the radar thinks it should be based on the target’s last heading and
speed), the track file will turn from yellow to red to indicate this. When the track is detected again,
it will turn back to yellow. If a track is no longer detected, it will turn red like previously mentioned
and extrapolate for 13 seconds total. The last 5 seconds before the radar dumps the track, the
track will begin to flash. Tracks are prioritized by range and the order in which they were built.
Three scan patterns are available in TWS. They are:
± 60, 2 bar
± 25, 3 bar
± 10, 4 bar
Without a bugged target, the azimuth scan centers on the cursors and elevation is controlled
manually. When a target is bugged, the azimuth is biased to keep the bugged target in the scan
and the elevation is centered on the bugged target. If the antenna elevation is tilted while the pilot
has a bugged target, upon dropping the bug, the elevation scan will move according to what the
pilot commanded to reflect the position set by the antenna elevation controls.
There are two ways to bug targets. The pilot may either slew the cursors over to a track file (or a
search target) and designate or may TMS-right to bug the closest track file. Further TMS-right’s
will step the bug to the next highest priority track file. The pilot may enter STT (Single Target
Track) by TMS-forward on a bug. This will erase all search targets and tracks from the radar,
although the tracks will extrapolate for 13 seconds. If the pilot undesignates (TMS-aft) to return to
TWS, the extrapolated tracks will reappear and the target will be bugged. If TMS-aft is
commanded again, the pilot will drop the bug and the radar will continue to TWS. If TMS-aft is
commanded a third time, the radar will dump all tracks and begin rebuilding tracks automatically.
If TMS-aft is commanded a fourth time, the radar will go back into CRM-RWS.
6.3
NON F-16 HUD SYMBOLOGY
For non-F-16 aircraft, the sim may now be configured to show an AOA indicator that will appear
in the HUD. This AOA indicator has the Greek Alpha symbol. Since most aircraft have this, the
indicator defaults to on. It may be turned off by setting g_bhudAOA to 0.
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