mega.txt MEGAFORTRESS MANUAL These are the IFF codes that ...

The analog altitude indicator registers altitude above
sea level. The black hand indicates 100s of feet; the
red hand indicates 1000s of feet.
WARNING
It is important to note the difference between the two
altitude indicators. Generally the digital altimeter is
the more important instrument of the two to the pilot,
as it records the current distance between the aircraft
and the ground. The analog indicator is useful in its
graphic representation of changes in altitude.
Artificial Horizon Indicator
The lines on the Artificial Horizon indicate the degree
of roll, from side to side' the numbers indicate the
degree of pitch, forward and back.
EVS OFF/ON Switch
The EVS OFF/ON switch must be turned on for any
of the electro-optical viewing system (EVS) functions
to operate.
EVS RANGE/RDR mode switch
1) In RDR mode, the pilot's EVS monitor displays
information from either the EW station's passive
radar, or the OW station active radar if the OW radar
is operating in "attack" mode. (Please see EW and
OW stations.)
2) In RANGE mode, the EVS presents a lowresolution
display of the world ahead of
Megafortress. Features include: .
A) Low-resolution profile of the terrain between the
aircraft and a line 10, 20, or 40 miles distantdepending
on the range currently set in the Radar
panel at the Navigator's station.
B) "Batwing" symbol representing the EB-52,
showing its altitude relative to the horizon line.
C) Two short lines on the right-hand margin of the
monitor, indication the lowest and highest levels of
terrain between airplane and the horizon line. (These
are often together at the bottom of the EVS,
indication flat, featureless terrain.)
D) Terrain Avoidance Computer (TAC) interface.
The TAC can be turned on and off (by selecting the
word ON or OFF) and set to any altitude between 108
and 1085 feet (by selecting the + or - sign). When the
TAC is turned on, the aircraft will maintain the
selected altitude AGL, overriding the programmed
waypoint altitude if the autopilot is on, or
automatically whenever manual control of the
airplane is relinquished. (Please see "Terrain
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