User Guide

IHADSS FLIGHT SYMBOLOGY

Longbow

The Integrated Helmet and Display Sighting System projects assorted navigational

and targeting information onto a display. It also displays symbols generated by the

Target Acquisition and Designation Sight system and uses an infrared nighttime

display (the Pilot Night Vision System). Information from the flight instruments,

navigational system and weapons system is overlaid on this video display and

appears in a small reticule mounted on the helmet.

IHADSS Mode Indicator. The name of the current IHADSS mode

appears in the upper left corner as

HOVER, BOB-UP, TRANSITION or CRUISE.

Elements that appear in each mode are discussed in this section.

Cycle through IHADSS modes (see p. 2.14 for individual keys).

Master Mode Indicator. The name of the active master mode

appears in the upper right corner of the display as

NAV, DIRECT,

INDIRECT or ATA.

Cycle through master modes (see p. 2.9 for more details).

Hover IHADSS Mode

Activate Hover IHADSS mode (use when hovering).

Sight Reticule. Line of sight cross hairs in the center of the

display mark the center of your straight-ahead view. (A similar reticule

with dashed lines appears when a target has been selected. Take

care not to confuse the two.) When firing guided weapons, line up the

solid reticule with the target. The appropriate weapon indicator will

turn solid, indicating that you have a valid weapon lock and can let loose with your

missiles or rockets (see Weapon-Specific Items, p. 2.22).

LONGBOW 2

2.14

Magnetic FCR Sweep Alternate Acceleration Command

Heading Tape Indicator Sensor Bearing Cue Heading

FCR Field of View Field of Skip/Slid High-

Centerline Marker Regard Box Lines and Ball Action Display

1 2

IHADSS Mode Indicator

Engine Torque Readout

True Airspeed Readout

Navigation Waypoint

Information Readout

Sight Reticle

Master Mode Indicator

Velocity Vector

Rate of Climb Scale

Radar Altitude

Analog Altimeter Scale