System Overview
SkyView Classic Pilot’s User Guide –
Revision Z
2-5
Attitude Calculation
The SkyView artificial horizon display (attitude) is generated via a complex algorithm using a
multitude of sensors as described in Table 1. In normal operation SkyView uses airspeed to
provide superior attitude accuracy. Should airspeed become unavailable due to inadvertent
pitot icing, GPS ground speed will be used as an attitude aid. You will see a GPS ASSIST
annunciation on the primary flight display when this is the case.
Compass Accuracy Effects on Synthetic Vision, Map Performance, and Autopilot
It is critical that the magnetic heading be as accurate as possible for optimal Synthetic Vision
and Moving Map performance. The ADAHRS or Remote Magnetometer must be installed
correctly, calibrated, and operating well
in all attitudes
. However, it is important to note that
magnetic heading is not used to aid attitude determination under any circumstance.
SV-MAG-236
Due to the sensitivity of the SkyView ADAHRS to magnetic interference, some aircraft
installations are better served by mounting the SV-ADAHRS-20X within the center of gravity box
and also installing a remote magnetometer outside the box and well away from any dynamic
magnetic interference. When installed, the SV-MAG-236 is the sole source of magnetic heading
data to the SkyView System.
SV-EMS-22X
The engine gauges on your SkyView Engine Page are generated from the data acquired by the
SV-EMS-22X Engine Monitoring module and its sensors. This module supports popular four and
six-cylinder engine installations and can measure a variety of engine and environmental
parameters such as RPM, manifold pressure, oil temperature and pressure, exhaust gas
temperature (EGT), cylinder head temperature (CHT), fuel levels for multiple tanks, voltage,
current, fuel pressure, fuel flow, carburetor air temperature, coolant pressure and
temperature, flap and trim potentiometers, external contacts, and general purpose
temperature sensors. Two SV-EMS-22X modules can be installed to monitor either extra
CHT/EGTs for large engines or dual engines.
SV-GPS-250
The SV-GPS-250 GPS Receiver module is an optional externally mounted 5 Hz WAAS enabled
GPS receiver designed specifically for use with SkyView. It supplies GPS data in NMEA format
and automatically sets the time on SkyView.
The SV-GPS-
250’s WAAS capability does not allow it to be used as a primary
navigation source in an IFR environment where a TSO’d WAAS GPS may be
required. It does mean that it utilizes the WAAS GPS satellite to improve its
positional accuracy compared to a non-WAAS enabled GPS.
