such displays be blanked to minimize distractions to the pilot. Instructional fea-
tures that are incompatible with simulated flight under pilot control can be ini-
tiated only when the simulator is in a freeze state (e.g., record/playback and de-
monstration). Likewise, use of the hardcopy feature when simultaneous copies of
multiple displays are desired, can occur only when the simulator is in freeze. Use
of other features, such as malfunction simulation, automatic malfunction insertion,
and parameter freeze, can be initiated without respect to the freeze status of the
simulator, but the effect of these features upon the simulation is noted only when
the simulation resumes.
7-19. ELAPSED-TIME CLOCK (TIMER). The elapsed-tire clock is a digital display
that, when activated, displays real-time in minutes and seconds. A discrete timer
and controls are provided for each instructor. The timer can be operated indepen-
dently at each IOS except during periods of the blinking PROBLEM FREEZE switchlight
( i . e . , except during periods of reset or changing simulator conditions).
a. The timer digital display is located in the upper left-hand corner of the
main page area on one of the IOS CRTs. It is permanently displayed during training
and remains so even during page changes. Zero minutes and zero seconds (00:00) are
displayed until the timer is activated. Controls to operate the timer are on the
forward control panel (figure 7-4). A discrete switchlight is used to start and
stop the timer action. When activated (TIMER START/STOP depressed), the display
counts real-time in seconds and minutes. When depressed again (TIMER START/STOP),
the display maintains the last digits in a freeze state. When depressed again, it
activates the display, and displayed time is cumulative. Additionally, A TIMER
RESET switch, when depressed, resets the minutes and seconds to zero.
b. The instructors use the timers to determine elapsed problem time, to relate
errors to problem time, and to relate training events/activities to problem time.
7-20. REPLAY CONTROL. Four switchlights associated with the playback mode of
operation are located in the lower right corner of the forward control panel
a. REPLAY RESUME allows the instructor to freeze the playback at any point and
select RESUME. When selected, the simulator resets to the starting point of play-
back activation and permits training to continue from that point. When initiated.
the REPLAY RESUME switchlight illuminates, and the PROBLEM FREEZE switchlight
flashes until initialization is complete and reset discrepancies have been cleared.
b. REPLAY FLYOUT allows the instructor to freeze the playback at any Point and
select FLYOUT. When selected, training can continue from that point in the
c. REPLAY SLOW TIME allows the instructor to slow the playback down, to allow
more time for the trainee to grasp important relationships between control inputs
and resulting instrument indications, aircraft attitude, and system performance.
slow-time playback takes twice as long to occur as real-time playback. There is no
d. REPLAY AUDIO OFF allows the instructor to turn audio on or off any time
during real-time playback.
7-22 Change 2