Piper ARCHER III Pilot Operating Handbook page 228

SECTION7
DESCRIPTION & OPERATION
Autopilot (Optional) (continued)
AUTOPILOT FEATURES (continued)
Level Mode (Optional)
Level Mode commands the airplane to wings level and zero vertical speed. It
is activated by pressing the blue switch (labeled LVL) at the top center of the
instrument p anel. Level Mode may be activated at anytime with the autopilot
engaged or disengaged. Activation is indicated by green L VL and L VL for
lateral and vertical modes respectively. Level mode should not be relied upon
the autopilot is operating in any failure condition.
Electronic Stability and Protection (Optional)
Electronic Stability and Protection (ESP) provides a control force feedback to
deter the pilot from operating outside a defined envelope. ESP functions only
when the aucopilot is operable, but is disen g aged. As the aircraft approaches the
defined operating limits, the autopilot servos automatically engage to nudge the
aircraft back to the nominal operating envelope. The pilot can easily overpower
the restoring tendency, and may interrupt ESP with the AP disconnect or
CWS switches. At any time ( usually for trainin g reasons ) , the ESP function
ma y be disabled from the AUX
When disabled in this manner, ESP OFF is displayed. ESP will automatically
re-enable after each electrical power cycle. If ESP has failed, an ESP FAIL
system message will be displayed under the Messages softkey on the PFD .
REPORT: VB-2749
7-42
PA-28-181, ARCHER ill
- SYSTEM SETTINGS
ISSUED: December 22, 2017
REVISED: August 29, 2019
if
page on the MFD.
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