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The CDS consists of two master controller processor throughout this manual.
units (MCPUs), two multifunction displays (MFDs), one
multifunction keyboard (MFK), and one remote 2-13. INDICATORS.
frequency display (RFD).
All indicators, instruments, and warning devices, except
The CDS consists of a dedicated right master
the multifunction display, which are part of the
controller processor unit (R MCPU), a dedicated left
helicopter system along with their operations and
master controller processor unit (L MCPU), two
functions, are discussed in detail under respective
multifunction displays (MFDs), one multifunction
headings throughout this chapter.
keyboard (MFK), and one remote frequency display
(RFD).
The OH-58D incorporates an integrated system 2-14. MULTIFUNCTION DISPLAY.
processor (ISP). The ISP interfaces with the following
systems (ISP not installed in aircraft): a . Description. Two identical multifunction
displays (MFD) (fig. 2-10) are mounted on the
(15) Aircraft survivability equipment (ASE). instrument panel. Each unit may be operated
(16) Armament systems. independently of the other allowing separate functions
to be performed simultaneously by each crewmember.
(17) ANVIS display symbology system (ADSS). However, data entry by means of the cursor on the
2-15
TM 1-1520-248-10
MFD may be input through the MFK by only one b. Avionics Compartment Access Doors. Two
crewmember at a time. This also provides system access doors (14 and 38, fig. 2-1) allow access to the
failure protection in the event of loss of one MFD. A electronics equipment in the rear cabin area. Louver
BRT (brightness control) knob is located on the lower type vents are located on the lower center portion of
left corner of the MFD to control the brightness of the each access door to aid in electrical equipment cooling.
background of the display. A CONT (contrast control)
knob is located on the lower right corner of the MFD to
control the contrast between the messages and the
background of the display. 2-16. CREW SEATS.
b. Control and Functions (Fig. 2-10). Crew seats consist of steel tubular frames with
stretched webbing covers for the bottom portions. The
c. Operation. All warning, caution and advisory seat back is a contour shaped cushion attached to the
messages are displayed on the MFD. Detailed back armor plating with hook and pile type fasteners.
operation of the MFD is covered under the different
This cushion may be adjusted as needed for crew
modes of operation throughout this manual.
comfort. The crew is protected by armor plated panels
from the back, below, and outboard side. The seats are
2-15. CREW AND ACCESS DOORS. equipped with a seat belt and shoulder harness. An
inertia reel system is attached to the shoulder harness
to allow free forward body movement during normal
WARNING operation and automatic locking during violent
maneuvers. A shoulder harness lock lever is attached
to the side of each seat to allow the crew to manually
lock the shoulder harness by moving the lever forward.
Inadvertent jettisoning of crew doors is Lifting the armor plate lock lever and swinging the
possible if EMERGENCY RELEASE lever armor plated panel outward allows the crew easy
is used as a handhold or hand rest entrance and exit.
during flight.
a. Crew Doors. The left and right crew doors (17 To provide energy attenuation under emergency
and 37, fig. 2-1) may be jettisoned by means of an landing conditions, helicopters with MWO 1-1520-248-
EMERGENCY RELEASE lever located immediately 50-11 accomplished are equipped with two energy
forward of each door. Both doors have door latching attenuating crew seats. Each seat is equipped with a
devices. The right door has provisions for a padlock on five-point restraint system which includes lap belts,
the outside and the left door has a locking strap on the shoulder harnesses, crotch strap, inertia reel, and a
inside (Section XVI). single-point release mechanism.
2-16
TM 1-1520-248-10
INST ENG FUEL MCPU
VS XDCR XDCR XDCR QTY R
ICS ICS FM ADU RFD MFD
PLT CPO PLT
INV RECT DC GEN ENG OIL PITOT
FIELD RESET BYPASS HTR
STBY NVG CKPT POS SRCH LT
ATT PWR LT LT CONTR PWR
HYD JETT FORCE
ANTI
COLL BUS
SYS TRIM LT INTCON
SCAS AIR MAST DPLR MFD
DC DATA TRQ NAV CPO
IR
JAMMER FUZZ
BASE BNR
MASK
5 5 5 5 5 20
5 5 5 5 5 5
1/2 1/2 1/2 5 5 5
5 5 5 5 5 20
5 5 7 5 1
2
5 5 5 7 5 1
2
5
5 5
OFF
FORMATION LIGHTS
20 5 5 5 5 5
MCPU FUEL CONTR FUEL START IGN
OFF BRT
CONSOLE LT
OFF BRT
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TECHNICAL MANUAL OPERATOR’S MANUAL FOR ARMY OH-58D HELICOPT(8)
