Vertical Speed (Vs) Mode - Honeywell KAP 140 Pilot's Manual

Two Axis Operation
G
KAP 140
AP

Vertical Speed (VS) Mode

The Vertical Speed (VS) mode
allows variable vertical speed climbs
and descents. The ALT button tog-
gles between altitude hold and verti-
cal speed modes.
Note: The KAP 140 engages into VS
mode as a default.
To operate in the VS mode
(with autopilot currently disengaged):
1. AP button - Press. Note ROL,
VS and current vertical speed is
displayed. If no other modes are
selected the autopilot will operate
in the ROL and vertical speed
hold modes. For software version
03/01 and later, the AP button
must be pressed and held for 0.25
seconds to engage the autopilot.
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.
58
HDG NAV APR
KAP 140 AUTOPILOT SYSTEM
UP
DN
REV ALT
To initiate a climb or descent from
Altitude Hold (ALT) mode:
1. ALT button - Press. Note ALT
changes to VS and current vertical
speed is displayed.
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.
Note: When operating at or near the
best rate of climb airspeed, at climb
power settings, and using vertical
speed hold, it is easy to decelerate
to an airspeed where continued
decreases in airspeed will result in a
reduced rate of climb. Continued
operation in vertical speed mode can
result in a stall.
Rev. 2
May/02