HUD EVS Flashcards
What device is used to set up for the HUD operation?
DISPLAY CONTROLLER / HUD button
What elevation should be boxed on DISPLAY CONTROLLER HUD menu?
Runway TDZ elevation
What angle should be boxed on DISPLAY CONTROLLER HUD menu?
The approach vertical angle
During approach when will the Airport Symbol appear on the HUD display?
2000’ above the boxed TDZ elevation
During approach when will the Airport Symbol disappear on the HUD display?
325’ above the boxed TDZ elevation
During approach when will the Runway Symbol appear on the HUD display?
350’ above the boxed TDZ elevation
During approach when will the Runway Symbol disappear on the HUD display?
60’ above the boxed TDZ elevation
During approach when will the Flare Cue appear on the HUD display?
100’ AGL
How do you DECLUTTER the HUD presentation
Use EVS / HUD rocker switch on the YOKE and select HUD
How do you return to the HUD CLUTTER mode?
Use EVS / HUD rocker switch on the YOKE and select HUD
May either DISPLAY CONT be used to set up the HUD?
YES
What device is used to set up for EVS operation?
DISPLAY CONTROLLER / HUD button
What items must be boxed for EVS operation?
- FLIR
- EVS
- AUTO, H or L
What occurs when the FLIR button is pushed?
EVS performs a built in test and the camera is internally cooled.
How much time is needed for the EVS camera to cool down?
- 30 minutes
- EVS II (S/N 5214) and subsequent: 15 minutes
What occurs if the EVS button is pushed?
If pushed before FLIR button, it boxes (turns on) EVS and FLIR simultaneously
What Airport Lighting Level should be requested for EVS operation in low visibility?
High Intensity (highest level)
What term refers to the EVS image displayed on the HUD?
Raster
What is a NUC check?
Non Uniformity Correction check
When will the NUC check occur?
- When Flaps are selected 10 degrees OR
- When NUC button is pushed on the Disp Contr
- When FLIR is boxed
What is the function of the FLIR button?
Cools down the EVS camera
What is the function of the EVS button?
- Places the Raster (EVS image) on the HUD screen AND
- Turns on FLIR if not previously selected
What is the function of the AUTO, H or L button?
Sets image gain in Auto, High or Low
What is the purpose of the YOKE HUD/EVS ROCKER switch?
Allows the pilot to CLEAR (remove) the EVS display from the HUD
How is EVS operation status displayed on HUD?
- EVS A (Auto Gain), EVS L (low gain), EVS H (high gain). EVS C (indicates clear mode EVS video is available but is not being displayed)
What altitude may the aircraft descend to with EVS?
- 100’ above Runway TDZE provided EVS Lights are in sight.
When may the aircraft descend below 100’ above Runway TDZE during EVS approach?
Must establish VISUAL CONTACT WITH THE RUNWAY
What call will the pilot make when he sees the Runway Lights on EVS?
“EVS LIghts - continuing to 100 feet”
EVS works well in FOG or CLOUDS?
FOG
LOW CEILINGS may make EVS approaches:
Difficult because water droplets are more dense than clouds