Dynon Avionics SkyView System Installation Guide - Manual (Page 217)

Autopilot Servo Installation, Configuration, and Calibration
SkyView System Installation Guide – Revision S 10-21
Minimum Airspeed
If the AP is engaged and the Minimum Airspeed limit is changed to a value that is
higher than the current airspeed, the AP will immediately act to increase the
airspeed to the new minimum airspeed setting. Dynon recommends that this setting
only be adjusted with the AP disengaged.
The pitch axis minimum airspeed is the lowest airspeed at which the pilot may engage the
autopilot. The autopilot cannot be engaged at airspeeds below the minimum airspeed, with the
exception of 0 knots, allowing for ground testing.
When flying at airspeeds lower than the minimum airspeed or when the autopilot is engaged
and the aircraft airspeed drops below the minimum, SkyView indicates that the aircraft has
dropped below the parameter by displaying SPD indicators in the Top Bar as illustrated in Figure
70 above.
If the aircraft’s altitude drops below the target altitude bug and the autopilot cannot pitch the
aircraft up without dropping below the minimum airspeed, SkyView presents the prompt:
Figure 72 – Top Bar Airspeed Low Indication
The minimum airspeed parameter must be set to at least (and defaults to) 30% above VS1,
which should be set to the specifications of your aircraft in the Airspeed Limitations Menu
(reference page 5-10 for more information) and is specified in the units set in the Measurement
Units Menu (i.e., miles per hour, knots, or kilometers per hour; reference page 3-8 for more
information regarding configuring the measurement units). As previously mentioned, the
minimum value for this parameter is 30% above VS1. This is also the default value.
To set the minimum airspeed:
1. Go to the Pitch Axis Minimum Airspeed Adjust Page (SETUP MENU > AUTOPILOT SETUP
> PITCH AXIS > MINIMUM AIRSPEED).
2. Adjust the minimum airspeed.
3. Press ACCEPT to save the value or press CANCEL to return to the Roll Axis Menu.
Disengage Button Options
Hold to Engage
Hold to Engage may be set to YES or NO. Setting HOLD TO ENGAGE to YES allows you to engage
the autopilot by holding the Disengage/CWS Button for more than 2 seconds. This allows for a
convenient alternative to engaging the autopilot via the AUTOPILOT Menu.
When HOLD TO ENGAGE is set to YES, anytime the autopilot is disengaged you can engage it by
pressing and holding the Disengage/CWS Button for more than 2 seconds. Note that after 2
seconds, the autopilot status indicator in the Top Bar on the SkyView REL TO ENG (release to
engage), as illustrated in Figure 73.