Electronic Flight Instrument System (EFIS)

FEATURES

DISPLAY: 5 ATI or 6.4” Diagonal AMLCD, high speed display update rate for anti-aliasing and clarity.

CONFIGURATION: EHSI/EADI are single part numbered, self-contained highly integrated display units that are designed to connect to either digital or analog aircraft avionics suites.

LIGHTING: Sunlight readable and adjusts with master and individual dimmer. Auto-sensing for Sunlight splash.

ELECTRICAL POWER: Standard aircraft power either 28v or 400Hz 115v with EMI/RFI protection.

MAINTENANCE: Extensive Built-in-test for automatic reversion and quick maintenance isolation.

SYSTEM: Fully reversionary and generic interfacing adapts readily to either Digital (429) or Analog (Syncro Aircraft configurations).

ON-BOARD EXPERIENCE: Bell 412, Bell 427, Bell 430, Agusta A109 Helicopter, USAF C-18, Zeppelin NT, Boeing 727, 727 Simulators, Gulfstream 62.

Electronic Flight Instrument System (EFIS)

The AMLCD EFIS system is designed to directly replace the current electromechanical HSI/ADI without aircraft wiring changes. The AMLCD EFIS system also replaces the low-reliability CRT EFIS with minimal aircraft wiring changes, reducing weight, increasing reliability and sunlight readability.

The EFIS system emulates the current HSI/ADI to reduce pilot training but also permits display formats that far exceed the existing systems such as weather radar in MAP mode, ARC mode and vertical profile. FMS and mission computer information such as waypoint and route, nearest airport, nearest Nav aids, alternate routes, alternate destination, north up, moving map, wind speed and direction, distance to go, ETA and many more.

TCAS information such as traffic in standard ARINC 735 display format, resolutionary advisory in a vertical speed fly-to-green format.

Radio altimeter functions such as decision height, expanded scale for landing helicopter operations, all in addition to the standard ADI, HSI, bearing pointers, course deviation, autopilot annunciation, flight director cross bars or ‘V’ bars and warning and caution flags.

Our displays utilize high resolution AMLCD flat panel technology for clarity and brilliant color contrast and controlled load lighting for night and sunlight readability.

EFIS Flight Configuration Options

The EFIS system consists of one, two or four programmable, self-contained EADI and EHSI. All displays have the same part numbers and are completely interchangeable. The EFIS system provides full reversionary capabilities with the use of our composite mode, large interface capability and our high-speed ‘M’ cross bus. The bezel keys are software programmable and the primary display format/function is determined by hardware strapping in the installed location.

EADI Functional Displays

The EADI display can be configured to display information ranging from basic attitude information to full PFD (Primary Flight Display) with airdata functions without hardware changes. EADI display formats include attitude in either ball or square format, glide slope, localizer, rising runway, flight director cross hair or ‘V’ bar format, autopilot annunciation, radio altimeter readout, decision height, rate of turn, slip ball, composite mode (HSI functions) and marker beacon. With the addition of airdata interface the EADI can provide altitude, airspeed, mach, baro correction, overspeed warning and tape, expanded current airspeed and altitude. Fewer modes can be displayed depending on customer option.

EHSI Functional Displays

The EHSI provides the following display formats and relative data: HSI basic heading data, course, desired track, course direction, bearing pointers for multiple selectable sources, heading select, course select, range selection (MAP mode), waypoint and route, nearest airports, nearest Navaids, north up or current heading up mode, rate of turn, glide slope, weather radar information in ARC, MAP and Profile mode, winds and wind direction, ETA, TTG, DTG, Nav selection, mode selection and TCAS overlay with vertical speed indication with resolutionary advisory capability.

• Mode selection includes:
• HSI (360° compass card) - (HSI Data only)
• MAP - GPS Data & HSI Data only
• ARC (120° compass card)-Expanded Display Mode
• ARC MAP - With GPS Data
• ARC + WX - With WX Data
• ARC MAP + WX - With WX and GPS Data
• Composite Mode - ADI / HSI Composite Mode


Fewer Modes can be utilized depending on Customer option.

Composite Mode Displays

In case of failure of one unit of the EFIS the functioning indicator will be switched to the composite display mode. The composite mode displays both ADI and HSI functions.

• The upper part of the screen presents a portion of the attitude display truncated in the lower part. FD command bars, GS indication, MB annunciation, RA readout, DH readout and annunciation, and attitude source annunciation, information is displayed.
• The display Rate of Turn, rising runway, and expanded Localizer information will be overwritten by the HSI information.
• The lower part of the screen will present heading information (180 compass arc). Heading bug and readout, course/DTK pointer and readout, course/XTK deviation and scale, TO/FR indications, bearing pointers, navigation source annunciation, and DME distance information is displayed.