Trio Avionics Pro Pilot - Manual (Page 34)

Trio Pro Pilot Manual 3.8
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While the climb (or descent) is underway the AS/VS LED will flash (unless otherwise configured on initial
setup), providing a positive indication to the pilot that the mode is active. If the Pilot wishes to pause the
climb/descent, momentarily pressing the encoder knob will invoke ALT HLD. Once this is done, the
aircraft will level off, and the AS/VS LED will stop flashing (but remain lit). However, the selected vertical
rate is still in the display indicating that the climb may be resumed by pressing the encoder knob again.
If the pilot wishes to cancel the selected vertical rate, it may be done by pressing (and holding) the V
MODE button for 3 seconds. This will cause the AS/VS LED to turn off, and the autopilot will enter the
ALT HLD mode. Any vertical speed (or altitude settings) that have been previously entered will be
canceled.
If the Pro Pilot is commanding a climb to an assigned altitude of 10,000 ft and a controller asks the pilot
to temporarily hold at 6,000 ft., the pilot may press the encoder button upon reaching 6,000 ft and the
aircraft will hold at that altitude. When cleared to continue the climb, the pilot may press the encoder
button again to resume the climb. Alternatively, the pilot may set the AS/VS rate-of-climb to zero at 6000
ft which will then hold that altitude until the vertical rate is changed
NOTE: The pilot may change the vertical rate even while the aircraft is climbing or descending. Rotating
the encoder knob while on the SET VS screen will cause the Pro Pilot to increase or decrease
the climb or descent rate.
For instance, if you are descending toward a destination airport at, say, 500 feet per minute and see that
you need to steepen your approach to arrive at the approach end of the runway, you might rotate the
encoder knob to change the descent rate to 700 ft/min.
To execute the climb/descent that was entered, the pilot must press the V MODE button to bring up the
vertical information display screen, and then press the encoder button. This action will initiate the
climb/descent and the AS/VS LED will begin to flash.
Altitude Pre-Select Function (ALT SEL)
The pilot may pre-select a destination altitude. When engaged, the system will command the aircraft to
climb or descend to the selected altitude. Upon arrival at the destination altitude, the system will
automatically switch to the ALT HLD mode and assume level flight.
To be accurate, the Pro Pilot must have current
barometric altitude information. Once the pilot has
adjusted the baro setting on the aircraft altimeter, the
baro altitude in the Pro Pilot may be easily adjusted to
agree with the aircraft altimeter by repeatedly pressing
the V MODE button to display the BARO SET screen
at any time and changing that number by rotating the
encoder knob.
When initiating a climb or descent to a destination
altitude, the Pro Pilot will begin the climb/descent at
either the rate set by the pilot, or a default vertical
speed that has been predetermined in the
CONFIGURATION menu.
The factory preset is 500 fpm, but this may be changed
by the user.