senseFly eBee X User Manual page 66

Using your eBee X
This altitude depends on the difference in altitude between Home and the
landing spot:
• If Home is more than 75 m (250 ft) above the landing spot, the drone
will descend to 75 m (250 ft) before starting the downwind leg.
• If Home is between 50 m (160 ft) 75 m (250 ft) above the landing spot,
the drone will start the downwind leg at that altitude.
• If Home is less than 50 m (160 ft) above the landing spot, the drone
will climb to 50 m (160 ft) above the landing spot before starting the
downwind leg.
3. The drone circles to estimate the wind speed and direction. An approach di-
rection is then calculated as close to the upwind direction as possible within
the allowable approach sectors (defined by the user within eMotion).
4. The drone flies downwind against the approach direction. After flying for
a sufficient distance it turns around to align itself with the approach direc-
tion.
5. The drone glides down in the approach direction at a controlled speed and
descent angle of approximately 20°, braking by spinning its propeller in
reverse if necessary.
6. When the drone detects a height of around 20 m (66 ft) to the ground it
begins to level out its descent.
7. When the drone detects a height of around 3 m (10 ft) to the ground it
performs a final brake to reduce its speed and lifts its nose.
8. The drone then glides for the final few metres in a deep stall until it lands.
A linear landing can only be performed onto flat terrain. Ensure that the ground
is flat and at the same altitude as the landing spot for a distance of at least 100 m
(329 ft) ahead of the landing spot within every approach sector. Inside the ap-
proach sectors, ensure that there are no obstacles within 60 m (197 ft) of the land-
ing spot.
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