PRIMUS
r
1000 Integrated Avionics System
A28--1146--112--00
Electronic Flight Instrument System (EFIS)
4-12
-
VR BUTTON -- The VR button is used to select and set the
rotation reference speed. When the button is pushed for the first
time after power--up, the cyan dashes are replaced by the
greater of 89 knots or the value of V1, if V1 has been previously
set. The selected VR speed is displayed in cyan.
-
V2 BUTTON -- The V2 button is used to select and set the V2
takeoff reference speed. When the button is pushed for the first
time after power--up, the cyan dashes are replaced by the
greater of 89 knots or the value of VR, if VR has been previously
set. The selected V2 speed is displayed in white.
-
AP BUTTON -- The AP button is used to select and set the
approach reference speed. When the button is pushed for the
first time after power--up, the cyan dashes are replaced by the
greater of 89 knots or the value of V2, if V2 has been previously
set. The selected AP speed is displayed in green.
NOTE:
Typically, for landing, V
REF
is entered as the value
for AP.
-
SET BUTTON -- The pilot uses the SET knob to change the
V
SPEEDS
when the two white boxes are present.
NOTES:
1. For the V
SPEEDS
, on power--up, three cyan
dashes are displayed under the V
SPEED
labels.
2. All labels and boxes are white.
3. When the button is pushed for the first time after
power--up, the cyan dashes are replaced by a
default digital value. Two white boxes are
displayed, an inner box around the default
V
SPEED
value, and an outer box around the inner
box and the V
SPEED
label. The dual boxes denote
that the V
SPEED
is active and can be changed by
the pilot using the SET knob.
4. The next push of the button removes the inner
box, which deselects the SET knob input. The
displayed selected V
SPEED
remains active.
5. The next push of the button removes the outer
box. The V
SPEED
remains displayed on the bezel
menu but is removed from the airspeed display
on the PFD.
6. Repeatedly pushing the V
SPEED
button cycles the
sequence.
7. The takeoff V
SPEED
order of V1, VR, V2 is always
maintained in increasing order of magnitude.
