Gulfstream G200 - User Manual

TRIM SYSTEM
HORIZONTAL STABILIZER TRIM SYSTEMS
General
The variable incidence horizontal stabilizer serves for longitudinal
(pitch) aircraft trim. Two independent electrical trim systems ensure the
ability to trim the aircraft if one system fails.
The stabilizer travel is +2.5° to -9.5° which covers the entire flight and
cg envelopes trim requirements.
Normal System
Trim switches, located on top outboard side of pilot and copilot control
wheels, control normal operation. When either trim switch is moved UP
or DOWN, actuator's primary motor energizes to retract or extend the
actuator to desired position. Limit switches are incorporated in the
actuator to restrict stabilizer travel.
Pitch trim tone (from EICAS) sounds whenever normal system
operates. Autopilot trim is also achieved through the normal system.
Mach Trim
Mach trim is operative when autopilot is disengaged. Mach trim is
activated when ADC mach data indicates that longitudinal trim is
necessary (0.79 M
i
).
Gulfstream G200 - Trim System
Page 1

Summary

Horizontal Stabilizer Trim Systems

General Stabilizer Trim

Overview of horizontal stabilizer function, travel limits, and trim system redundancy.

Normal System Operation

Details trim switches, actuators, pitch trim tone, and autopilot integration.

Mach Trim Function

Explains Mach trim activation based on ADC data when autopilot is disengaged.

Override System Operation

Override System Activation

Functions and steps for activating the override system using PITCH TRIM REL. button.

Lateral and Directional Trim Systems

Lateral Trim System

How lateral trim is achieved via ailerons and its control switch.

Directional Trim System

Rudder trim mechanism using trim tabs, actuators, and switch location.

Trim Systems Controls and Indicators

Pitch Trim Controls

Description and positions of pitch trim switches and PITCH TRIM REL. button.

Horizontal Trim Override

Controls for the override trim system and the function of the RESET OVRRD button.

Aileron and Rudder Trim Switches

Operation and positions of aileron and rudder trim control switches.

Slats, Krueger and Flaps Systems

System Description and Operation

Components, actuators, electronic control, and extension/retraction sequence.

System Failure and Bypass

Handling of malfunctions, reversal of travel, and slats bypass function.

System Controls and Indicators

SLATS/KRUEGER/FLAPS lever, bypass, test switch, and aural warnings.

System Messages

Caution, advisory, and status messages related to flaps and slats system.

Gulfstream G200 Specifications

General

Manufacturer	Gulfstream Aerospace
Model	G200
Type	Business jet
Maximum Range	3, 400 nautical miles
Service Ceiling	45, 000 feet
Wingspan	58 feet 1 inch
Crew	2
Passenger Capacity	8-10 passengers
Height	21 feet 5 inches
Engines	2 × Pratt & Whitney Canada PW306A turbofan
Max Takeoff Weight	35, 450 pounds