VISUAL SYSTEM

TM 55-6930-214-10

Pitch

31O down, 36O up

Roll

±32O

Yaw

5-6. VISUAL SYSTEM. Two DIG systems are used in the CMS, differing only in the

number of channels offered and in the hardware required related to that differ-

ence. The same software is used for both DIG's.

a. There are timing constraints or desired system performance to provide high-

density scenes with DTV and FLIR images at a 60-Hz rate.

b. The DIG's consist of a three-channel DIG system and a one-channel DIG sys-

tem. The three-channel system provides either a three-channel out-the-window (OTW)

display or pilot night vision sensor (PNVS) video. The one-channel system provides

simulation of the three target acquisition and designation system (TADS) sensors:

forward-looking infrared (FLIR), day TV (DTV), and direct-view optics (DVO). Since

there are only two DIG systems, there are limitations on the number of visual dis-

plays that can be viewed simultaneously. (Table 5-1 lists the displays available

in each cockpit during integrated or independent CMS operations.)

5-7. AUDIO SYSTEM. Once programmed, accompanying audio cannot be turned off while

a demonstration continues. Audio is not available during slow-time playback. A l l

aural cues are limited in loudness to within established safe levels of hearing.

Sounds associated with rain and hail are not provided.

5-8. IOS CRT-CONTROLLABLE PARAMETERS. The CRT display pages provide instructor

control for aircraft environment, flight, and miscellaneous related parameters.

Selectable values for edit are limited within the range normally found in a

realistic world or within the limitations of the actual helicopter.

a. Environmental Conditions. Selections of environmental conditions are limited

as follows:

Barometric pressure

28 to 31 inches Hg

Outside air temperature

-40OC to +62OC

-40OF to +252OF

Wind velocity

0 to 30 knots in l-knot increments

Wind direction

001 to 360 degrees in l-degree increments

Vertical wind gust

0 to 25 knots In 5-knot Increments

Horizontal wind gust

0 to 25 knots in 5-knot increments

Turbulence level

0 to 5, 0 = off, 5 - max

Visibility

0 to 99,999 meters

Ceiling

0 to 50,000 feet

Cloud tops

0 to 50,000 feet

On/off

Scud clouds

On/off (available only with visibility

Random visibility

of 2000 meters or less)

on/off

Icing enable

0 to 5, 0 - off, 5 - max

Horizon glow

5-2

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