Multi-Function Display
Similar to the PFD, the Multi-Function Display, or MFD, is one of the central components in a cockpit. Its primary function is to display a navigation map and/or a visual representation of the flight plan.
On This Page
MFD Overview
Map
The underlying element of the EYEVIONICS MFD is the map. It displays the surface of the globe as a 3D sphere (WGS84 compliant), together with information from an aeronautical database. 3D Terrain & Topographic Imagery can be selected to enhance the map.
3D Terrain & Topographic Imagery require EYEVIONICS Aviator. Get it here.
Camera Control Bar
The camera control bar at the bottom of the MFD contains controls for the view perspective, zoom setting and camera lock. Learn more about camera controls here.
Airspace & Autopilot Information Bar
When the App layout is configured so that no PFD Panel is visible, a bar with information about the current airspace and autopilot state is shown at the top of the MFD. This helps with monitoring crucial information when focused on navigating in the MFD.
AVIATOR FEATURES By tapping on the current airspace information, the current airspace's boundaries are highlighted in 3D. Learn more about this feature here.
Camera Controls
The camera controls change orientation and magnification of the MFD map, or allow unlocking the camera from the aircraft, allowing free exploration of the map.
The Follow camera mode described below requires EYEVIONICS Aviator. Get it here.
MFD Fold-Out
Similar to the controls for the Primary Flight Display in the PFD Fold-Out, the MFD Fold-Out offers various controls affecting the Multi-Function Display.
- Terrain Alert AVIATOR FEATURE
- Toggles the Terrain Alert functionality on or off.
- Imagery AVIATOR FEATURE
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Cycles between available imagery, for example EYEVIONICS Topographic Imagery, Satellite, or no imagery.
- Show Airspaces
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Cycles between visible airspaces, either:
- None
- No airspaces are visible.
- All
- All airspaces are visible.
- Altitude Overlap
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Only airspaces that extend both below and above the aircraft's current altitude are visible (longitude/latitude are ignored).
Ideal for VFR en-route flight. - Location Overlap
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Only airspaces are visible that include the aircraft's current longitude/latitude coordinate (altitude is ignored).
- Show Aerodromes
- Cycles between visible aerodrome types, allowing to select airports, airfields, heliports and combinations thereof.
- Show Navaids
- Toggle navaid visibility on or off.
- Show VRPs
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Toggle Visual Reporting Point visibility on or off.
VRPs are commonly used for VFR flight close to aerodromes in Europe. - Traffic
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Cycle between traffic distance presets, or turn traffic off.
For example, a setting of 60NM 12,000ft will show all traffic within 60 Nautical Miles around the aircraft's current coordinate, and within 12,000 feet of the aircraft's current altitude. - Turn Lookahead AVIATOR FEATURE
- When Turn Lookahead is enabled and with the camera in Follow mode, the camera will automatically rotate toward the direction of a turn, providing increased situational awareness. Ideal for mountain flying.
MFD Symbology
Compass Rose & Distance Rings
A compass rose is shown, centered on the current position of the aircraft. A distance indication appears at around the 4 o'clock position of the compass rose. Likewise, distance rings may appear, depending on current MFD settings. The compass rose shows magnetic headings.
Selected Heading Indicator
The MFD shows a dashed aquamarine blue line extending from the aircraft's position in the direction of the heading is entered in the Autopilot heading selector. This indicator shows magnetic headings.
Example Scenario
The screenshow below shows an aircraft in a right downward turn, currently heading 125°. The heading bug is set to 199°. This heading is indicated in aquamarine blue over the PFD HSI and as a dashed line in the MFD.
Altitude Crossing Indicator
The Altitude Crossing Indicator indicates with a aquamarine blue arc at what approximate point a certain altitude is crossed or reached. The Autopilot altitude setting is used as a target altitude for this indicator. This indicator works both for climb and descent.
Example Scenario
The screenshot below shows an aircraft at approximately 7400ft, climbing at ca 2600ft per minute. The altitude target of 12,000ft is set in the Autopilot Fold-Out (here at the top of the PFD). The MFD camera is in Forward mode, showing the Altitude Crossing Indicator (aquamarine blue arc ) around 12NM ahead of the aircraft.
Estimation Method
To estimate where the target altitude is reached, the EYEVIONICS App uses current and very recent vertical rate and groundspeed data. The Autopilot Vertical Speed setting is not used for this estimation.
Indicator Behaviour
The blue arc of this indicator is displayed in the direction of the aircraft's current true heading. It will disappear within:
- 50ft of the target altitude
- 0.25NM of the location where the target altitude will be reached
- 5 seconds of when the target altitude will be reached
Flight Path Projection
The Flight Path Projection is a seafoam green line extending from the aircraft. It shows a projection of the flight path, providing an approximation of the aircraft's position in the near future.