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The Century Flight Systems, Inc. Century 4000 Autopilot is an advanced General Aviation Flight Control
System utilizing "State of the Art" electronic techniques.
In this handbook we have detailed the features, functions and general operating instructions of the
Century 4000 System.
May we suggest that you do two things?
1. Read this handbook and your Airplane Flight Manual Supplement. The handbook presents general
operating procedures. Each aircraft installation has an Airplane Flight Manual Supplement or
Autopilot Handbook that contains FAA approved flight procedures and operating limitations in that
particular model aircraft. The appropriate AFM Supplement is a document, which must be aboard
U.S. Registered Aircraft with the autopilot installed.
2. Spend some VFR time with the equipment to become familiar with its operation so that you may have
the full benefit of its capabilities.
This autopilot only version uses a standard artificial horizon in combination with a directional gyro (DG) or
an NSD-360A, NSD-1000 Horizontal Situation Indicator (HSI). A Century Flight Systems, Inc. Yaw
Damper (Y/D) may be incorporated with the Century 4000 when a Y/D is certified for your plane.
An outstanding feature of the Century 4000 is that it has a rate based inner loop for short-term dynamics.
This means that rate information is derived from the horizon so that motion about the roll and pitch axis is
programmed to occur at a rate appropriate to the activity. Examples of controlled rate motion are as
follows:
ROLL AXIS:
Heading Command - Roll at 5° per second diminishing near bank limit.
Navigation Soft Mode - Roll at 2.5 degrees per second to reduced bank limit (8°).
Gust Disturbances - Resisted by certificated servo velocity.
*PITCH AXIS:
Command Attitude - 0.7° per second attitude change.
Gust Recovery - Maximum rate consistent with passenger comfort.
Maximum System Capability - 2.4° per second.
Vertical Speed Command – 100 to 1000 feet per minute (approx).
FORWARD
FEATURES
The Century 4000 Autopilot
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