Head Up Display

This is the most common HUD found in the F-16s (WAC HUD)

The Head-Up Display (HUD) is a semi-transparent screen positioned directly in front of the pilot’s line of sight. It projects critical flight data, such as altitude, speed, heading, pitch, and roll, onto the windshield, allowing the pilot to access essential information without diverting attention from the forward view. The display also integrates navigation data and weapon status information. Pilots can customize the information shown on the HUD using the HUD Control Panel. HUD is a part of Up-Front Control (UFC) along with Integrated Control Panel (ICP) and Data Entry Display (DED).
Remember, the WAC HUD and WAR HUD have the same HUD layout, the only difference is the IFOV and FOV.

FOV	Degrees
IFOV (Instantaneous Field Of View)	20x15
TFOV (True Field Of View)	25x25

WAC HUD is mostly used on Block 25, 30/32 50/52/52.

FOV	Degrees
IFOV (Instantaneous Field Of View)	30x17
TFOV (True Field Of View)	20x30

WAR HUD is mostly used on Block 40/42, F-16D Block 52+ RSAF.

NAV Mode HUD layout

Element	Information
Roll Indicator	The roll angle of the aircraft (Reference tics are positioned at intervals of 1 degrees). Only show when DED/PFLD DATA Switch is in off position.
Magnetic Heading Scale	The magnetic heading of the aircraft (Reference tics are positioned at intervals of 5 degrees). Only show when Vertical Velocity Scale (VV/VAH) Switch is in VV/VAH or VAH position.
Selected Steerpoint / Distance	Show the distance in Nautical Miles from the aircraft to the selected steerpoint. Three digits for distance and Two digits for steerpoint. e.g. 001>01, 014>13.
Time To Steerpoint	Time to the steerpoint selected.
Slant Range	Show the direct, line-of-sight distance between the aircraft and a target or object in Nautical Miles. B - range computed by barometric altitude and sighting point elevation D - range computed by DTS F - range computed by FCR R - range computed by CARA (Symbol Range computed + Four digits for distance). e.g. B015.3, B055.2, D024.1. XXX if nothing is selected
Altitude Low Setting (AL)	Show the selected altitude low value in feet. "AL" + Significant digits of the value. e.g. AL 200, AL 600, AL 10000.
Radar Altitude (AR)	Show the radar altitude in feet. "AR" + Significant digits of the value. e.g. AR 20, AR 15460, AR 24520.
Altitude Scale	Show the altitude based on the Altitude (ALT) Switch position in feet. (Reference tics are positioned at intervals of 500 feet per minute 100 feet, Reference numbers are positioned 500 feet to show the altitude number e.g. 20,0 22,5 03,5). The altitude Scale box shows the aircraft altitude -+ 10 feet. Significant digits of the value. e.g. 100, 2,000, 15,830, 33,250.
Steerpoint Symbol	The symbol shows the exact selected steerpoint location.
Vertical Velocity Scale (VV)	The vertical velocity scale shows the vertical velocity of the aircraft (Reference tics are positioned at intervals of 500 feet per minute). Only show when Vertical Velocity Scale (VV/VAH) Switch is in VV/VAH position.
Altitude Bars	Altitude Bars show the pitch of the aircraft (Reference tics are positioned at intervals of 5 degrees).
Great Circle Steering Cue	The symbol show the optimal route heading to the selected steedpoint, by aligning the flight path marked with the steering cue, pilots can effectively steer the aircraft.
Boresight Cross	The boresight cross represents the aircraft's fixed forward aiming point or line of sight along the bore axis of the aircraft.
Flight Path Marker (FPM)	The flight path marker shows the actual path the aircraft is traveling through the air (when DRIFT C/O is in NORM positing), regardless of where the nose is pointing.
SOI Symbol	Show the HUD is in SOI (Sensor of Interes)
Normal Acceleration	Normal Acceleration refers to the acceleration experienced by an aircraft along its vertical axis, AKA gravitational force (G Force). Two digits. e.g. 1.0, 5.4, 9.0. Three digits when over or equal 10G. e.g. 10.0, 11.4.
Airspeed Scale	Show the speed (CAS/TAS/GND SPD) based on the Velocity Switch selected. Three digits. e.g. 000, 052,112,425. Four digits when over or equal to 1000. e.g. 1200, 1214
Offset Aimpoints	Reference points used by pilots to adjust their targeting or navigation when the primary target or waypoint is not directly visible or easily accessible.
Mach Number	The Mach number of the airplane. Two digits. e.g. 0.1, 0.8, 0.9, 1.2.
Max G's	The Max G's loaded in the flight. Two digits. e.g. 1.0, 1.2, 8.9. Three digits when over or equal 10G. e.g. 10.0, 11.4.
Operating Mode Status	The operating mode selected. (NAV)