Gulfstream G150 User Manual

Section VII
Systems
VII-22-1
AUTOPILOT SYSTEM
DESCRIPTION
The Flight Control system is an integrated 3-axis autopilot and flight
director, containing automatic elevator trim control. The system is
configured for dual flight directors and is certified for ILS Category 2
operations.
The system consists of the following:
Two FGC-3000 Flight Guidance Computer Module (2)
One FGP-3000 Flight Guidance Panel (1)
SVO-85C Primary Servo (2)
SMT-86C Servo Mount (2)
SVO-85B Primary Servo (1)
SMT-86B Servo Mount (1)
FGS MODES
Flight Guidance Mode Selection
The primary means of selecting and deselecting flight guidance modes
is by pressing the appropriate button on the FGP. pressing an FGP
button when the mode is not selected will select the mode. A
subsequent press of the FGP button deselects the mode. The FGS
defaults to the basic lateral and vertical flight guidance modes when no
modes are selected by the FGP.
10 Sep 2006

Gulfstream G150 Specifications

General

Manufacturer	Gulfstream Aerospace
Role	Business jet
Introduction	2006
Service ceiling	45, 000 ft (13, 716 m)
Passengers	Up to 8
Crew	2
Length	56 ft 9 in (17.3 m)
Height	19 ft 1 in (5.82 m)
Category	Aircraft
Engines	2 × Honeywell TFE731-40AR turbofan engines
Maximum Takeoff Weight	26, 100 lb (11, 839 kg)
Typical Seating	6 to 8 passengers
Range	2, 950 nmi (3, 390 mi, 5, 460 km)
Powerplant	2 × Honeywell TFE731-40AR turbofan engines, 4, 420 lbf (19.7 kN) thrust each

Summary

Autopilot System Overview

Autopilot System Description

Integrated 3-axis autopilot and flight director with automatic elevator trim control, certified for ILS Category 2.

Flight Guidance System Modes

Primary means of selecting/deselecting flight guidance modes via FGP buttons. Defaults to basic lateral/vertical modes.

Autopilot System Failures and Protection

Malfunction Protection

Multi-layered response to failures using dual channel processors and I/O processor limiters.

Flight Guidance Data Failures

System reverts to basic modes on data failure. Includes attitude/rate limiters and servo cutout.

Servo Control Failures

Fail-passive response via dual channel analog servo control. Computations use redundant sensor data.

Autopilot Controls and Operation

FGP-3000 Flight Guidance Panel Controls

Controls CRS, ALT, and HDG knobs/selectors for course, altitude, and heading selection.

Additional Autopilot Control Inputs

Includes Vertical Speed/Pitch Wheel, YD/AP DISC bar, FD, and AP engagement buttons.

Momentary Mode Selection Buttons

Mode Select/Deselect Buttons

Advanced Mode Selection Buttons

Autopilot Caution Messages

Lists critical system messages such as trim failures and excessive force indications.