Honeywell BENDIX/KING KAP 140 Maintenance Manual page 13

Abbreviation
V
VDC
VOR
VS
1.2 SYSTEM DESCRIPTION
1.2.1 GENERAL SYSTEM DESCRIPTION
The KAP 140 Automatic Flight Control System (AFCS) provides pilot workload relief when installed
in single--engine and light twin airplanes with non--pressurized cabins. The system is offered in
several upgradeable flavors for customer flexibility. This system can be configured as a Roll--only
(single--axis) system or as a Pitch and Roll (two--axis) system. The single--axis system has roll
stabilization with heading select and navigation arm and coupled modes. The two--axis systems
provide vertical speed select and altitude hold, with altitude alerting and preselect as an option.
Manual electric trim can be added to any system and pitch autotrim can be added to any two--axis
system.
1.2.2 SYSTEM UNITS AND INTERFACES
The KAP 140 autopilot system is composed of the KC 140 flight control computer, KCM 100
configuration module, KS 271 Roll Servo, KS 270C Pitch Servo, KS 272C Pitch Trim Servo, and
KM 275 or KM 277 servo mounts. The system receives a combined yaw rate and roll rate signal
from a turn coordinator (rate gyro). A VOR/ILS or GPS receiver can be interfaced to the AFCS
system via analog deviations and valids. AFCS systems with altitude alerting are interfaced to an
encoding altimeter via parallel digital inputs. A remote analog baro correction input is also provided
for interface to a KEA130A or equivalent altimeter. The system interfaces to a Directional Gyro
(DG) or HSI, receiving analog heading datum and/or course datum. The system also may interface
to the audio panel, flaps motor, and various switches on the control wheel (i.e. CWS, AP DISC,
MET).
Table 1--1 lists the components and part numbers that comprise the KAP 140 system. Figure 1--1
shows a block diagram of the system.
MODEL NO.
KCM 100
KC 140
KEA 130A (Optional)
KS 270C
KS 271C
KS 272C
1394T100--xxRZ
1U262--04x--x
TABLE 1- -1 KAP 140 SYSTEM COMPONENTS AND SUPPORT EQUIPMENT
Revision 2, Dec/2002
CS:15574F02.IDU
BENDIX/KING
KAP 140
Description
Volts
Volts -- DC (direct current)
VHF (Very High Frequency) Omni Range
Vertical Speed
UNIT DESCRIPTION
Configuration Module
Flight Computer
Encoding Altimeter
Pitch Servo Actuator
Roll Servo Actuator
Pitch Trim Servo Actuator
Rate Gyro
Directional Gyro
PART NUMBER
071--00073--xxxx
065--00176--xxxx
065--00178--xxxx
065--00179--xxxx
065--00180--xxxx
Supplied by Mid--Continent
Supplied by Sigma--Tek
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