Step 9 – pitch servo flight tuning – Dynon Avionics EFIS-D10A Installation Guide User Manual

Page 67

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Autopilot

Installation and Configuration

EFIS-D10A Installation Guide

6-27

You should be able to find a SENSITIVITY value that is acceptable for both h
holds and turns in smooth air. You may, however, find that in periods of extended
turbulence, a lower SENSITIVITY value must be set.

Step 8h – Verify TRN RT LMT and BANK LIMIT settings during turn(s)

During an AP-commanded turn, verify that the time to complete a turn matches your
expectations give

eading

n the setting for the TRN RT LMT parameter. For example, when TRN RT

ank angle

the bank angle indicated on the EFIS screen does not reach the angle set

must either increase BANK LIMIT or decrease

TRN RT LMT.
At th s

O

LMT is set to 3º/s, a 90º turn should take about 30 seconds. If this is not the case, the b
required by the target turn rate may exceed the set BANK LIMIT parameter. Ensure that during
an AP-commanded turn,
in the BANK LIMIT parameter. If it does, you

i point, all the parameters in the AP > ROLL SERVO menu are properly tuned.

Step 8i – Disengage AP

n the EFIS, perform either of the following:

 In the EFIS > AP menu, press the HDG

ON

(or TRK

ON

) button, toggling off the roll

servo

On the AP74, press the AP button. The AP status lights on AP button turn off.

UNING

This set of procedures tunes the settings in the AP > PITCH SERVO menu for the particular
flig c

Step 9a – Verify preferred Airspeed Min/Max and Vertical Speed Max

On

VSPD MAX parameters are set to values

ese values prior to or during flight, push DOWN▼ to

DEC - or INC + to modify it.

STEP 9 – PITCH SERVO FLIGHT T

ht haracteristics of the aircraft in altitude holds, climbs, and descents.

the EFIS, perform the following:

 SETUP > AP > PITCH SERVO

 Verify that the AIRSP MIN, AIRSP MAX, and

you are comfortable with.

 If you wish to change any of th

select the value, and then

Step 9b – Ensure that the aircraft is in trim.

Step 9c – Engage the AP in ALT mode

On the EFIS, perform the following:

> AP > ALT

OFF

.

ith

EFIS

 The EFIS synchronizes the ALT bug to the current altitude, the Autopilot engages w

the heading bug as its target, and the indicator turns to ALT

ON

.

If you have an AP74 installed and configured, the following performs the same function:

d ALT indicator lights are

 Push ALT button (activates PITCH servo); ensure that the re

on.

 Ensure that the HDG indicator lights are off; push the HDG button if they are not.
 Push the AP button to engage in ALT mode.

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