Trio Avionics Pro Pilot - Manual (Page 49)

Trio Pro Pilot Manual 3.8
49
 RESTORE DEFAULTS - Allows reset of both or either VNAV or LNAV factory settings
 LED FLASH RATE – Choose FAST FLASH, SLOW FLASH or NO FLASH for all LED’s
 Custom Startup screen Display setting – Allows configuration of the custom startup screen
 Autopilot serial number and firmware version– Provides the firmware version and the unit
serial number for factory reference
 ZERO FLT DATA ON POWERUP – When set to “yes” this will reset the flight timers to 0 prior to
a flight. When set to “no” it will accumulate data over several flights, until reset manually.
The following paragraphs describe how to select and change the various configuration settings.
Minimum Airspeed Setup
The Pro Pilot is capable of commanding the aircraft to climb and descend at rates up to 2000 feet per
minute. It is therefore necessary to assure that the system cannot stall or over-speed the aircraft, even if
a pilot enters a command that would precipitate such an event.
The autopilot senses airspeed from the aircraft pitot system and allows the pilot to set minimum and
maximum airspeed limits to assure that the airplane will operate in a safe flight regime when the autopilot
is operating the control systems.
Minimum and maximum airspeeds are selected by the pilot by manually flying the aircraft to the airspeed
desired and then recording the resultant pitot pressure (IAS) into the system. The V NAV servo will
automatically be turned OFF when this menu is selected.
To enter set the MINIMUM IAS SET selection, perform the following steps:
1. Enter the CONFIGURATION menu as detailed
previously and select the MINIMUM AS SET menu.
2. Press and release the H MODE button. The arrow
will be placed at the left side of the lower line. The
ARMED message will appear on the bottom line.
3. Fly the airplane to the minimum airspeed you wish to
set and stabilize at that airspeed.
4. Once the airspeed has stabilized, press and release
the encoder knob
5. Observe that the bottom line displays the "CAPTURE"
message.
6. Press and release the HMODE button.
The MINIMUM AS SET procedure is complete and the encoder can now be used to select another menu
screen.
Note: In actual use, the dynamics of an aircraft in an ascent will likely allow the airplane to decrease
speed somewhat below the limit before the system can effectively increase the speed of the
aircraft by lowering the nose. It is therefore best to set the limit with extra margin to allow for this.