background image

 

FlightSim Developers 

 

 

KFC 225 Autopilot 

Pilot Handbook 

 

- 6 – 

For use with Microsoft Flight Simulator only. Not to be used in real world aviation. 

Note 

The 

AP Servo Annunciator

 will illuminate if any of the 

Servo Control 

Modes

 is active. For example, if the unit is in 

Roll Mode

 and 

Altitude 

Preselect Mode

, and the 

AP Master Key

 is ON, this annunciator will 

illuminate, but the servo for altitude hold will be the only one active. 

The 

Roll Axis

 is still being controlled in 

Roll Mode

 (fixed roll trim). 

 

 

 
1.3 CONTROL AXIS 
The KFC225 is a three-axis control Flight Director System, providing Pitch Axis, Roll Axis and Yaw 

Damper Axis operation. 

 

1.3.1 YAW DAMPER AXIS 

 

 

Yaw Damper Key

. Depress this key to change the present setting. When the key is 

illuminated, the mode is active. The yaw damper is independent of autopilot operation.  

It is a device designed to reduce the rolling and yawing oscillations due to 

Dutch Roll

. It 

requires the installation of yaw rate sensors in the aircraft. The microprocessor in the 

KFC225 provides a signal to an actuator connected to the rudder, providing a more 

comfortable flight. 

 

 

 

 

Important Note: 

Not all Flight Simulator aircraft have yaw 

damper sensors installed. This is based on the 

plane’s aircraft.cfg file. 

 

In order for the yaw damper to function the 

following entry must be present in the 

[autopilot]

 section of the aircraft.cfg file: 

 

yaw_damper_gain = 1.0 

 

If this value is set to zero the yaw damper 

system will not work in Flight Simulator!  

 

If this value is set to zero the Yaw Damper system will not be available in Flight Simulator! Note 

that the 

Control Center

 tool can format this setting for you. See the Control Center Documentation 

for more details. 

 

Содержание KFC225

Страница 1: ...KFC225 Autopilot...

Страница 2: ...using it in flight To take full advantage of the capabilities of this system it is important that the pilot understand its capabilities and limitations The pilot should take time to read and thorough...

Страница 3: ...components and their relationship in a typical KFC 225 system The actual components on individual aircraft will vary according to your specifications 1 1 POWER APPLICATION AND PREFLIGHT TESTS A prefli...

Страница 4: ...being illuminated 1 2 CONTROLS AND DISPLAYS Figure 1a 1 Yaw Damper Key 5 NAV Control Key 9 VS speed Down Key 13 Preselect Control 2 Autopilot Key 6 Approach Hold Key 10 VS Speed Up Key 14 Digital Disp...

Страница 5: ...ft cfg file In order for the Flight Director to work the following entry must be present in the autopilot section of the aircraft cfg file flight_director_available 1 If this value is set to zero the...

Страница 6: ...ated the mode is active The yaw damper is independent of autopilot operation It is a device designed to reduce the rolling and yawing oscillations due to Dutch Roll It requires the installation of yaw...

Страница 7: ...control servos for aileron and rudder trim to maintain this course Roll Mode allows pilot selection of a fixed roll value The aircraft maintains that roll until the setting is changed or the mode is...

Страница 8: ...y indicates a port or starboard roll Press the AP Master Key to engage Active Mode Once engaged in Active Mode the ARM indicator will annunciate on the Display Panel The aircraft will maintain a const...

Страница 9: ...provide precise control and maintain a specific course The Flight Director FD key can be ON or OFF while operating in this mode and toggles the attitude indicator PFD flight director bars ON OFF The...

Страница 10: ...on off When the system is engaged the key will illuminate This function is one of three that receives its input data from the NAV 1 Radio This function is designed to follow the radial selected on th...

Страница 11: ...setting is not changed The signal is being received from the NAV 1 radio The AP Master Key is on and the unit is in Active Mode The NAV Hold Function is not overridden by APR or REV modes No Error Re...

Страница 12: ...r is switched OFF Reverse Backcourse Function Depress this key to toggle the Reverse Hold mode on off When the system is engaged the key will illuminate This function requires a valid localizer backco...

Страница 13: ...elation to the target altitude The microprocessor in the KFC225 commands the control servos for elevator trim to maintain the selected altitude Pitch Mode allows pilot selection of a fixed pitch value...

Страница 14: ...ciated with the visual annunciation flashing for two seconds When the aircraft is within 50 feet of its target altitude the Altitude Alert Indicator will extinguish and an aural annunciation consistin...

Страница 15: ...will annunciate while the aircraft is seeking the selected pitch If that pitch is maintained the indicator will go dark The autopilot will control the elevator trim to maintain the selected pitch unti...

Страница 16: ...ALT key to engage ALT Mode When the KFC225 is in Active Mode the servo controls will control the aircraft s pitch axis to maintain a preselected altitude Ensure that the AP Master Key is ON for Activ...

Страница 17: ...Vertical Speed Indication another five seconds The display will then revert to ALT Display Mode 1 3 3 4 PITCH AXIS FAILURE Failure Annunciators When illuminated indicates failure of the pitch axis an...

Страница 18: ...FlightSim Developers KFC 225 Autopilot Pilot Handbook 18 For use with Microsoft Flight Simulator only Not to be used in real world aviation Fault Condition Display This space left intentionally blank...

Страница 19: ...HDG Key and the AP Master key to switch the KFC225 to Heading Hold Function and Active Mode B Press the VS Key and use the UP Key to set the pitch axis to 700 FPM climb Rotate the Preselect Control t...

Страница 20: ...b to 6 000 feet Press the HDG Key and the AP Master key to switch the KFC225 to Heading Hold Function and Active Mode B Turn the HSI heading bug to 120 C The aircraft turns to the selected heading A A...

Страница 21: ...ing bug to 20 and select the HDG Key The aircraft maintains a heading of 20 B Select 60 on the OBS control and select the NAV Key on the KFC225 C Ensure the aircraft s NAV GPS switch is in the GPS pos...

Страница 22: ...he AP Master key is also ON and illuminated B Turn the OBS knob until the pointer is set to the Front Course runway heading of 013 Press the REV key on the KFC225 This will engage REV standby mode C W...

Страница 23: ...the APR Key to arm the Approach Coupling System The aircraft is flying level at the runway approach altitude of 2 700 feet In APR mode the glideslope mode is automatically armed B With the Approach C...

Страница 24: ...on The OBS selector is turned to an outbound radial of 330 Turn the heading bug to 270 and press the HDG Key Then press the NAV Key The KFC225 will maintain HDG Mode B When the CDI shows less than 50...

Страница 25: ...cture in the folder FlightSim Developers Bendix King Control Center exe Course Mode Servo Controlled Mode for the autopilot roll axis Sets a microprocessor defined course heading determined by the HSI...

Отзывы: