YUNEEC H520 - Grid; Survey Information

Yuneec Electric Aviation
H520 Start Guide
61
GRID
 Angle – Adjust the angle of the survey grid lines.
 Turnaround Distance – Sets the distance outside the survey for the H520 to turnaround.
 Entry – Selects the mission beginning/data capturing point (Position x where x corresponds to the
Survey waypoint number) of the survey. For best battery life, set this value to the nearest entry
point from launch point.
 Refly at 90 Degree Offset – Overlays a secondary survey grid 90 degrees from the first survey (also
known as cross-hatch). This feature is useful for extremely high quality maps, and for flying in early
morning or late afternoon flights where long shadows may provide deep contrasts.
 Altitude – Sets the survey grid altitude. This is not changeable mid-flight. Use the Waypoint tool
when variable altitudes are required.
 Ground Res – Sets the ground resolution in inches/pixel, which will automatically calculate and set
the survey altitude.
SURVEY INFORMATION
Located at the bottom of the Survey Grid menu, the Statistics area displays general survey information.
 Survey Area – Total area covered for current survey grid.
 Photo Count - Estimated number of photos for current survey grid.
 Photo Interval - Current time delay between photos (based on flight speed and ground resolution)
Note: For stitching 60% front overlap and side overlap is sufficient. For generating digital
surface models and orthomosaics up to 85% front overlap and side overlap may
be required. Under ideal conditions 75% and 65% are common settings. In high
winds, it is recommended to use maximum values for front and side overlap, with
Hover and Capture enabled.
Note: A higher ground resolution requires a lower flight altitude. If unsure about ground
resolution altitude, enter desired ground resolution then view the corresponding
altitude in the altitude settin
g
(
g
re
y
ed out), and vice versa.