Understanding aerial mapping with the eBee
Note: The eBee’s ground sensor can typically begin detecting ground
proximity at a distance of 40 m. If the drone reaches an estimate al-
titude of 20 m/ATO (as estimated using the on-board GPS and pres-
sure sensor) without a signal on its ground sensor it assumes there
is a malfunction with the ground sensor. This may be due to insuf-
ficient light or contrast in the environment, dirt on the sensor’s lens
assembly or a Linear landing location at a different altitude than the
Take-off Location. In this case the drone performs the braking and
stall manoeuvre at an altitude of 20 m instead of 3 m. This increased
time while stalled can greatly reduce the accuracy of the final landing
position and damage to the drone.
If the Linear landing process is aborted (by clicking on the ‘ABORT LANDING’ but-
ton in the Control Bar) before completion the drone will turn on its motor in full
thrust and gain altitude while continuing in a straight line in its approach direc-
tion. Once the altitude of 40 m/ATO is reached the drone will turn towards the
Home waypoint and continue climbing until it reaches an altitude of 75 m/ATO. It
then continues circling until it receives a further command.
Caution: Do not abort a Linear landing if there are obstacles in the
approach direction behind the Home location, as the drone will con-
tinue flying in a straight line after an abort sequence while it gains
altitude and may collide with those obstacles.
Caution: It is not recommended to abort a Linear landing when the
battery is low, as the drone may not have enough power to attempt
a second landing.
4.7 Flying multiple drones at the same time
Operating multiple drones at the same time enables the coverage of larger areas
in a shorter amount of time. This can be useful when the mission time must be
kept short, for example because of varying lighting conditions. To enable multi-
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