A2A Simulations BONANZA ACCU-SIM V35B Manual Download

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ACCU-SIM V35B BONANZA

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A2A

SIMULATIONS

103

FOR SIMULATION USE ONLY

The Autopilot provides two-axis (pitch and roll) sta-

bilization and automatic elevator trim as well as auto-
matic response to all selected Flight Director commands
Installation of optional 3rd axis (rudder command) will
damp out yaw oscillations and provide automatic tum coor-
dination. Upon Autopilot disconnect, an Aural Alerter will
sound a Sonalert for 2 seconds while the AP light on the
Annunciator Panel flashes.

HEADING SELECT / PRESELECT MODE (HDG)

Select a desired heading by positioning the heading “bug”
on the PNI. This is done with the HDG knob on the PNI.
Depress the HDG button on the Mode Controller to activate
the HDG mode. ‘HDG” will light on the Annunciator Panel
and a computed, visually displayed bank command is shown
on the FCI. Following this bank command, the aircraft will
bank and roll out on the desired preselected heading.

The Command V-bar on the FCI will deflect in the direc-

tion of the shortest turn to satisfy the commanded turn
of the preselected heading. The aircraft may be manually
banked to realign the V-bar and satisfy the command or,
if the Autopilot is engaged, the aircraft will automatically
bank, turn to, rollout and hold the preselected heading. As
the aircraft approaches the selected heading the V-bar will
command a rollout to wings level.

With the HDG mode in operation, subsequent changes

made in the heading “bug” position on the PNI will imme-
diately cause the V-bar on the FCI to call for a turn to the
new heading, unless the HDG button on the Mode Controller
has been depressed again to cancel the HDG mode.

The HDG mode is cancelled when NAV or APPR coupling

occurs, or when FD mode button is pushed to “OFF”

NAVIGATION (NAV ARM AND NAV CPLD) MODE

The NAV mode provides visual bank commands on the
Flight Command Indicator and deviation guidance on the
PNI to intercept and track a VOR course or an RNAV course.

Operation of the NAV mode requires the pilot to:

1 .

Tune to the frequency of the selected
VOR (or VORTAC) station. For RNAV
operation, set in waypoint distance and
bearing from the VORTAC station.

2 .

Set the PNI course pointer on the desired course.

3 .

Establish angle of intercept by setting
heading bug and activate “HDG” mode.

4 .

Depress the NAV button on the Mode Controller.

When the “NAV” button on the Mode Controller is

depressed, “NAV/ARM” will be lighted on the Annunciator
Panel and the automatic capture circuit is armed. Heading
select, if operating, is retained until capture occurs.

The VOR or RNAV “course-capture” point is variable to

prevent overshoot and depends on angle of intercept and
the rate the course deviation is changing. Upon capture, a
bank command will be displayed on the FCI; the HDG, if
on, will be cancelled and ‘NAV/CPLD” will be lighted on the
Annunciator Panel.

The pilot can manually bank the aircraft to satisfy the

command display which will call for a rollout to wings level
when on course centerline to track the course. Crosswind
compensation is provided in the “track” state.

If the NAV mode is selected with the aircraft level within

4 degrees of bank and within three dots of course deviation,
NAV/ARM will be bypassed and NAV/CPLD will engage directly

If the Autopilot is engaged, the aircraft will bank to sat-

isfy the command display and rollout on course automat-
ically. Upon station (or waypoint) passage, an outbound
course other than the inbound reciprocal can be selected by
resetting the NAV course arrow on the PNI. This will cause
an immediate V-bar deflection on the FCI directing a turn
to the new course

The NAV mode is cancelled by depressing the NAV button,

or selecting HDG (when in NAV coupled) or APPR modes, or
pushing FD to “OFF”. Going back to HDG while adjusting
OBS is desirable.