Gulfstream Aerospace G550, Руководство по эксплуатации, Страница: 7 / 62

2A-31-20: Cockpit Clock System
1. General Description:
The cockpit chronometers provide accurate time displays to the flight crew.
2. Description of Subsystems, Units, and Components:
There are two chronometers on the outboard sides of the forward instrument
panel: #1 on the pilot side and #2 on the copilot side. Each is capable of the
following time displays:
•
Greenwich Mean Time (GMT)
•
Local time (LT)
•
Flight time (FT)
•
Elapsed time (ET)
Greenwich and local time are displayed in hours and minutes. Flight and elapsed
time is displayed in minutes and seconds. Both are displayed in decimal form. The
flight time display, when selected, records the elapsed time since the weight-on-
wheels switch transitions from ground to flight mode.
Each chronometer receives power from the essential flight instrument bus, and
has replaceable batteries to ensure operation if aircraft power is interrupted. Each
installation has a two inch digital display containing the microprocessor controlled
chronometer and incandescent lighting. See Figure 4.
3. Controls and Indications:
(See Figure 4.)
A. Circuit Breakers (CBs):
The chronometers are protected by the following circuit breakers (CBs):
Circuit Breaker Name: CB Panel: Location: Power Source:
CLOCK # 1 POP B-4 ESS FLT INST Bus
CLOCK # 2 CPOP B-4 ESS FLT INST Bus
4. Limitations:
There are no limitations established for the cockpit clocks system at the time of
this writing.
OPERATING MANUAL
PRODUCTION AIRCRAFT SYSTEMS
2A-31-00
Page 7
July 15/04
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