System operating modes, Pitch and roll attitude hold (pit)modes, Vertical speed (vs)mode – BendixKing KI 525A System KFC 225 User Manual

Page 18: System operation 12

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The

ROL

mode engages in wings

level Roll Attitude Hold mode.

To change ROL Attitude Hold Mode:

1. Press CWS and bank the air-
craft to the desired bank angle. If
the bank angle is less than 6°
when the CWS button is released,
the autopilot will hold wings level.
If the bank angle is greater then 6°
when the CWS is released, the
autopilot will hold the bank angle
up to the maximum allowed by the
autopilot for that aircraft.

Vertical Speed (VS) Mode

The Vertical Speed (

VS

) mode

allows vertical speed climbs and
descents. The

VS

button engages

vertical speed mode.

To operate in the

VS

mode (with

autopilot currently disengaged):

1.

VS

button - Press. Note

ROL

,

VS

and current vertical speed is

displayed. Pressing the

AP

button

will engage the autopilot in

ROL

and

VS

modes.

2.

UP

or

DN

button - Select

desired climb or descent rate.
Each button stroke will increment
the vertical speed commanded up
or down by 100 ft/min per button
press, or at the rate of approxi-
mately 300 ft/min per second if
held continuously.

System Operation

12

KFC 225 AUTOMATIC FLIGHT CONTROL SYSTEM

Rev. 0

Apr/99

AP

VS

ARM

G

KFC 225

HDG

NAV

APR

REV

ALT

FD

DN

UP

YD

P R

ALT SEL

AP

VS

ARM

G

KFC 225

HDG

NAV

APR

REV

ALT

FD

DN

UP

YD

P R

ALT SEL

Pitch and Roll Attitude Hold
(PIT) Modes

The Pitch Attitude Hold (

PIT

)

mode allows constant attitude climbs
and descents. The

AP

or

FD

button

engages

PIT

mode.

To operate in the

PIT

mode

(with autopilot currently disengaged):

1.

FD

button - Press. Note

ROL

and

PIT

are displayed. Pressing

the

AP

button will engage the

autopilot in

ROL

and

PIT

modes.

2.

UP

or

DN

button - Select

desired climb or descent attitude.
Each button stroke will increment
the pitch attitude by 0.5°. Pushing
and holding the

UP

or

DN

button

will cause the aircraft to pitch at
0.8° per second. Releasing the
button will sync the attitude to the
present pitch attitude.

To initiate a climb or descent from
Altitude Hold (

ALT

) mode:

1.

ALT

button - Press. Note

ALT

changes to

PIT

referencing the

present pitch attitude.

2.

UP

or

DN

button - Select

desired climb or descent attitude.
Each button stroke will increment
the pitch attitude by 0.5°.

System Operating Modes

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