PRIMUSr 1000 Integrated Avionics System
A28--1146--112--00
8-41
Modes of Operation
GO--AROUND (GA) MODE (WINGS LEVEL)
The GA mode is normally used to transition froma landing approachto
a climb out condition in the event of a missed approach. The pilot
selects GA mode by pushing the GA button locatedon either outboard
throttle handle. With GA mode selected, all flight director modes are
cancelled. Laterally, the pilot sees a heading hold command on the
PFD, as shown in figure 8--26.
If the autopilot was engaged before go--around was selected, the
autopilotremainsengaged.Thecommandbarsshowawings level and
pitch command to hold a minimum speed of 1.3 V
s.
CAUTION
DURINGACOUPLED (AUTOPILOTENGAGED) GO--AROUNDUN-
DER HEAVY AND FORWARD CG CONDITIONS, AN ALTITUDE
LOSS OF APPROXIMATELY 100 FEET CAN OCCUR.
NOTES: 1. For an invalid AOA, minimum speed defaults to 120
kts.
2. The go--around mode ensures that minimal altitude is
lost during the maneuver.
3. The maximum pitch angle is 12°.
4. Under low power conditions, the mode first maintains
altitude (see CAUTION above) until 1.3 V
s
is reached.
5. MIN SPD protection mode isactive duringgo--around.
6. If a windshear condition is encountered and
go--around is activated, the command bars are driven
by windshear recovery commands. The vertical flight
director mode is WS.
TheGAmodeiscancelledbyselectinganotherpitchmodeorchanging
the couple to cross--side.
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