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18 Replaying Flight Recorder Logs in the 3D Viewer
The SK720 is unique among flybarless systems in its ability to log and replay
flights in a 3D viewer. The logs stored on your SK720’s mass storage device are
used to mathematically reconstruct your flights, allowing you to improve your
maneuvers or just show your friends.
Start the 3D viewer by selecting
Replay Flight Log
in the
File
menu of the SK720
setup software. You will be shown a dialog box similar to that shown in Figure
18.1 below.
Figure 18.1 – Replay a Flight Log
Navigate to the directory where your flight logs are located and click the Open
button. (We recommend that flight logs be copied off your gyro and onto your
hard drive before replaying them.) The 3D-viewer window will then open and
begin playing back your flight. Note that only logs containing actual flight time
will be played back.
There are four buttons at the bottom of the 3D-viewer window that are used to
control playback. In order, they are
Stop
,
Play/Pause,
Fast Forward
and
Mute
.
The Play button changes into a pause button while playback is in progress. The
white and gray progress bar may also be used to control playback. You can jump
forward or backwards in the playback sequence by clicking on the progress bar
with your mouse. Figure 18.2 on the following page presents a screen shot of the
3D-viewer window.
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Figure 18.2 – 3D-Viewer Window
As with the self-leveling feature, accurate playback is dependent on good
mechanical setup of your helicopter. High vibration will negatively affect the
accuracy of the helicopter’s calculated motion, particularly the way in which it is
shown to maneuver around the 3D viewer’s virtual sky.
In cases of high and extreme vibration, the helicopter will not be shown to fly
around the sky at all. Instead, it will be displayed at a fixed location in front of
the viewer. Only the rotations (pitch, roll, and yaw) will be modeled in that event.
If your helicopter is experiencing high vibrations in flight, a warning will be
displayed on the playback screen in order to assist you in correcting those
vibration problems. High vibrations are identified with a yellow warning
message. Extreme vibrations are identified with a red error message. Extreme
vibrations also result in the “green with red flicker” LED state on your SK720.
(See Section 9 of this manual for more information about indicators and errors on
your SK720.)
