Heads-Up Display Modes 35 - Metaboli

54 Heads-Up Display Modes
about 0.5 seconds. Information on each radar contact, therefore, is updated every
two seconds.
In BVR mode, the radar antenna
is stabilized in roll and pitch. This
means that the direction of the
antenna axis does not change
when the aircraft banks, pulls up
or dives, providing that the
aircraft maneuvers do not
exceed the gimbal limits of the
antenna. Unlike in many
Western aircraft, the beam
shape of the Su-27’s radar is
fixed and cannot be changed. The maximum detection depends on the target’s
characteristics (geometry, aspect angle, radar reflectivity, etc.). Typically, the radar
can detect a medium-sized target such as a MiG-29 at a range of about 100
–120 km. Large targets such as strategic bombers can be detected at distances
up to 150 km.
Target
Maximum Detection Range in Scan Submode, Km
B-52 150
F-111 80
F-16 50
F-117 @10
As with the radar, the field of search of the electro-optical system is stabilized in
roll and pitch. The EOS can detect medium-sized targets located up to a maximum
of 50 km, but, as described above, cannot accurately measure the range to a
target beyond 5 km.
Tracking data appears on both the HUD and the MFD, depending on the mode
and submode selected. In most cases, the MFD shows a top-down view of the
area around your aircraft. Your current position is indicated by the small aircraft
symbol; the number in the corner indicates the distance from the bottom edge to
the top edge in kilometers. HUD and MFD symbology appropriate to each mode
and submode are described in the following sections.
LD< (BVR) mode has two submodes of operation: Scan and Attack. The following
sections describe each mode.
LD< – J