IHADSS

Question 1

The IHADSS consist of what two subsystems?

Answer 1

HMS and HMD

Question 2

What sighting component does the AAIH interface with for LOS calculation?

Answer 2

The IBRU

Question 3

What components make up the HMD subsystem?

Answer 3

HDU, DDU, ISDU

Question 4

Which component creates the symbology viewed by the crewmember?

Answer 4

The MP

Question 5

Where is the Improved Helmet Display Unit (HDU) stowed?

Answer 5

In the right console holster

Question 6

What does the HDU cable assembly connect to?

Answer 6

The DDU

Question 7

How should the HDU cable assembly NOT be routed?

Answer 7

Under the right arm

Question 8

What is the purpose of the HDU combiner lens sliding clip?

Answer 8

To ensure proper FOV

Question 9

Where is the GRAYSCALE option/selection found?

Answer 9

WPN Page top level

Question 10

What are the two video adjustments made on the IHDU itself?

Answer 10

Leveling and focus

Question 11

How many shades of gray are display when the grayscale is optimized correctly?

Answer 11

10

Question 12

What are the two most important things to remember when performing the infinity focus check?

Answer 12

Focusing on an object at least 200ft away and center raster lines should be crisp

Question 13

Why is it important to perform the infinity focus check correctly?

Answer 13

To prevent eye strain, headaches, etc

Question 14

What is the aircraft Armament Datum Line (ADL)?

Answer 14

The ADL is an imaginary reference line extending through the longitudinal axis of the aircraft at 0°
azimuth, 0° elevation.

Question 15

What systems(s) can the Pilot boresight from the PLT WPN BORESIGHT page?

Answer 15

IHADSS

Question 16

What systems(s) can the Copilot Gunner boresight from the CPG WPN BORESIGHT page?

Answer 16

IHADSS and TADS

Question 17

Crewmembers boresight their IHADSS to the

Answer 17

ADL

Question 18

What are the three selectable symbology modes available in both crewstations?

Answer 18

Hover, transition, cruise

Question 18

The velocity vector saturates (fully extends) in Transition Mode symbology at what ground speed?

Answer 18

60 KIAS

Question 18

What does the Field of Regard box represent?

Answer 18

A box representing the selected sensor, the FOR displays at the bottom and represents the total
gimbal limits of the crewmember’s selected sensor.

Question 19

What is the purpose of the IHADSS?

Answer 19

Establishing a LOS in reference to the ADL, to:
- Aim weapons
- Point sensors

Question 20

What is MCD? IMRU? ISDU?

Answer 20

Magnetic Computational Data
Improved Electromagnetic Receiver Unit
Integrated Sight Display Unit

Question 21

What does the DDU do?

Answer 21

• Brightness + contrast
• Sizing, centering, electronic focus
• Should normally be correct

Question 22

What are the 2 rules for proper grayscale?

Answer 22

- 10 shades of green - no video between light green outer border and field flattener lens

Question 23

What does a FPV indicate?

Answer 23

Where you’re flying toward if no control inputs are given

Question 24

What does the acceleration cue provide?

Answer 24

Future A/C acceleration, relative to the velocity vector tip

Question 25

Where can you make sizing and centering adjustments.

Answer 25

DMS / MAINT page

Question 26

Where will an IHADSS B/S REQ / LOS INVALID message appear?

Answer 26

Sight status panel in HAD