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When not using the Autoland feature, make sure to switch to Manual Mode prior to landing.
Upon landing, disarm the motors by holding minimum throttle and full left yaw. This is typically done on the left radio control stick by moving it to the bottom left corner with mode 2 controllers. Disarming can only be done while in Manual Mode. Once the motors are stopped and disarmed, the Orientations Lights will flash green, and the Status Light will slowly flash white, indicating it is safe to approach ALTA Pro.
The downwash from the propellers can disturb debris. This debris can be ingested by the propellers or motors and cause damage. After the flight, ensure there is no damage to the propeller blades and that the motors still spin freely and quietly. Take extra care when operating in areas with large amounts of debris, such as in sand, dirt, or gravel.
After flight is also a good time to check the condition of battery packs. Always refer to the battery manufacturer’s recommendations for inspection and replacement intervals or requirements.
To set up ALTA Pro for flight, remove it from the case, and remove the prop protectors. Stow the boom retention clips by folding them down. The clips fold in one direction and are spring-loaded to stay in open and closed detented positions.
Unfolding the booms is most easily accomplished by unfolding all opposite pairs partially, then unfold the opposite boom pairs completely. ALTA Pro can become unbalanced while unfolding booms individually, so unfolding opposite pairs reduces the possibility of tipping.
Once unfolded, push on the boom latches until they audibly click, indicating the booms are secure. There should be little to no slop in the hinge. Check that the receivers and the electrical connectors that attach to the receivers are secure.
For information on installing isolator cartridges and setting up payload mounting locations, refer to the Isolator Cartridges and Configuring GroundView or SkyView sections of this manual.
Item
Action
1.
Mode Switch
MANUAL
2.
Home Switch
OFF
3.
ALTA Pro
LAND
4.
Motors
DISARM and STOP
5.
Orientation Lights
VERIFY FLASHING GREEN
6.
Status LED
VERIFY SLOW FLASHING WHITE
7.
ALTA Pro QGroundControl
CHECK for warnings
8.
Batteries
DISCONNECT AND REMOVE
9.
Radio Controller Power
AS REQUIRED
10.
Aircraft Condition
INSPECT
11.
Motor and Prop Condition
INSPECT
12.
Battery Condition
INSPECT
Item
Action
1.
Aircraft
REMOVE from case
2.
Prop protectors
REMOVE
3.
Boom retention clips
STOW
4.
Booms
UNFOLD
5.
Boom latches
LOCK
6.
Receivers and wiring
CHECK
7.
Isolator cartridges
SELECT and INSTALL as necessary
8.
Payload mounting location
CONFIGURE as necessary
Users may land in Manual Mode, Altitude Mode, or letting the ALTA Pro land autonomously when doing a waypoints mission. Quickly reverting to manual mode when landing in Altitude mode will prevent ALTA Pro unwanted movements .
Only approach ALTA Pro after confirming that it is disarmed by verifying the Status Light and Orientation Light colors.
Fold propeller blades and install foam Prop Protectors to decrease the risk of damaging the propellers while packing ALTA Pro. Keeping ALTA Pro on the payload or landing gear easily facilitates the folding process as ALTA Pro may be turned on the Toad In The Hole adapter while folding the propellers and booms. Folding the booms in opposing pairs can help maintain balance and reduce the likelihood of tipping.
Make sure that the handle is aligned front-to-back with the battery leads facing to the right when putting ALTA Pro in the included case. Pay special attention to the external GPS, 900/868MHz Telemetry radio and optional accessories if installed (FPV camera and Tx) when putting the ALTA Pro back into its case.
Prior to start, check the surrounding area to ensure people and objects are clear of ALTA Pro and its props. Also ensure that there are no people or objects between the ALTA Pro’s takeoff location and its intended flight path.
Ensure that ALTA Pro QGroundControl shows all sensors are calibrated and ready for flight.
To start the motors, hold full low throttle and full right yaw. Ensure that all the motors are spinning. Raise RPMs slightly and move the pitch, roll, and yaw controls slightly. ALTA Pro should pitch, roll, and yaw as commanded due to isolator cartridge flex. Ensure that the ALTA Pro behaves as expected. If it does not, shut down ALTA Pro and ensure the propellers are installed in the correct orientation and radio settings are correct.
After checking flight control directions, advance the throttle directly from idle to hover throttle. Prior to takeoff, do not advance throttle stick above idle until prepared for flight as this can spool up motors undesirably. While throttling up for takeoff, do not loiter in ground effect. Once in flight, use the Mode Switch to select between Manual, Altitude, or Position Mode only after first confirming proper flight performance in Manual Mode.
Item
Action
1.
Propellers
FOLD and PLACE inline with booms
2.
Prop Protectors
INSTALL
3.
Boom Latches
UNLOCK
4.
Booms
FOLD
5.
Boom Retention Clips
EXTEND
6.
Payload
REMOVE
7.
ALTA Pro
INSERT into case
Item
Action
1.
Prop Area
CLEAR
2.
Mode Switch
MANUAL
3.
Home Switch
UP/OFF
4.
Radio Controller
VERIFY CORRECT MODEL
5.
Telemetry (if equipped)
CHECK OPERATION
6.
GPS Signal
LOCKED
7.
ALTA Pro
ARM
8.
Status Light
VERIFY OFF
9.
Orientation Lights
VERIFY USER-DEFINED COLOR
10.
Motors
START and VERIFY OPERATION
11.
Flight Controls
VERIFY CORRECT
12.
Throttle
ADVANCE directly to hover
ALTA Pro’s props spin at a high RPM and the ends of the blades move at high speeds. ALTA Pro’s props can cause severe injury or death or cause damage to objects while rotating. Always ensure the area surrounding the props and ALTA Pro is clear of people or objects prior to starting the motors.
Do not approach ALTA Pro while it is armed or motors are spinning.
Do not make large yaw commands while on the ground with the inverted landing gear installed. Large yaw commands can cause instability.
Only take off in Manual Mode or let the ALTA Pro take off autonomously when doing a waypoints mission. Attempting to take off in Altitude or Position Modes may cause ALTA Pro to tip over.
Altitude Mode and Position Mode are assistive only and are not a replacement for pilot skill and ability. Pilots should be proficient in Manual Mode flight in order to react to emergency situations as required.
Check that the payload is secure by checking that the Toad In The Hole quick release lever is pushed in and that the payload does not slip. Check that all isolator cartridges are locked in place, especially if they have been recently replaced.
The blades should be checked for damage, including nicks and scrapes. If a propeller blade has been nicked enough that it catches a fingernail, it should be replaced. Bolt tightness should be checked by rotating the blade about its length (blade pitch up and down). There should be no slop, and if there is, the bolt and nut should be tightened until the slope is removed. There should be no slop between the propeller hub and the motor.
Motors should spin freely, and there should be no grinding or scraping sound from the motor. The inside of the motor should be free of debris.
Always turn on the radio controller before powering ALTA Pro. Follow the battery installation guidance in the Battery Installation section of this manual for battery installation instructions.
While the Autopilot initializes, keep ALTA Pro as stable as possible. Wedging a foam prop protector between the stationary gimbal or landing gear and the frame can be used to stabilize ALTA Pro from spinning during this process.
At the end of this process, the status will begin slow flashing white, indicating ALTA Pro is ready for arming. The Orientation Lights will also begin flashing green. Verify that all motors are flashing green, indicating all ESCs initialized successfully.
Verify that there are no flight warnings by connecting to ALTA Pro via ALTA Pro QGroundControl and checking for warnings or errors. For more information, see the ALTA Pro QGroundControl section of this manual.
Item
Action
1.
Payload
SECURED
2.
Isolator Cartridges
VERIFY SECURE
3.
Propellers
CHECK CONDITION, VERIFY TIGHT
4.
Propeller Hubs
VERIFY SECURE
5.
Motors
CHECK CONDITION
6.
Radio Controller
ON, VERIFY TX BATTERY
7.
Radio Controller Model
SELECT
8.
Aircraft Placement
AWAY from people and obstacles
9.
Battery Pack Voltage
VERIFY ABOVE 24V
10.
Battery Packs
SECURE
11.
Battery Leads
CHECK CONDITION and CONNECT
12.
Aircraft
KEEP STATIONARY
13.
Flight Controller
Allow to INITIALIZE
14.
Status Light
VERIFY SLOW FLASHING WHITE
15.
Orientation Lights
VERIFY FLASHING GREEN
16.
Receivers
VERIFY BOUND
17.
ALTA Pro QGroundControl
CONNECT
18.
ALTA Pro QGroundControl
VERIFY NO WARNINGS
19.
Compass Calibration
CALIBRATE as required
20.
Radio Control Range Check
AS REQUIRED
If ALTA Pro moves during initialization, it may not boot properly and will fail to start or not maintain heading.