ULogViewer: A Beginner’s Guide to Flight Log Analysis

Top 10 Tips for Faster Log Review in ULogViewer

1. Use the “Quick Open” keyboard shortcut

Press Ctrl/Cmd+O to load logs immediately without navigating menus.

2. Filter fields to only what you need

Uncheck irrelevant data streams (e.g., sensors you didn’t use) to reduce plotting overhead.

3. Create and save custom layouts

Arrange and save panels (plots, parameter viewers, flight map) for different workflows so you can switch instantly.

4. Reduce plot sampling rate for long flights

Lower the plotted sample rate to speed rendering while keeping full-resolution data available for zoomed inspection.

5. Use markers for key events

Place markers at takeoff, anomalies, and landing to jump between important moments quickly.

6. Employ differential zooming

Zoom into a short time window for detailed traces, then use overview to reorient; avoid loading full-flight high-res plots simultaneously.

7. Precompute and use derived channels

Enable commonly used computed channels (e.g., airspeed from groundspeed/heading) so you don’t recreate them each session.

8. Leverage region export for sharing

Export only the time-range of interest as a smaller log file when collaborating or sending for review.

9. Keep ULogViewer updated

Run the latest release for performance improvements and bug fixes that accelerate loading and rendering.

10. Profile problem areas with summary statistics first

Check summary metrics (max/min, battery usage, alarm counts) to narrow down where to focus detailed plotting.

Alternative useful tip: if you often analyze the same vehicle type, maintain a template with preselected fields and plots tailored to that platform.

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