Airplane in the fog

Vaisala Forward Scatter Sensor FD70 for Aviation

The best-in-class forward scatter technology to optimize airport operations and protect lives.

Advanced Air Mobility

Get the best visibility and weather detection with new forward scatter technology

The Vaisala FD70 is the leading forward scatter technology for visibility and present weather, including runway visual range (RVR). It sets the standard in airport weather accuracy, detecting 100% of precipitation from the lightest drop to the end of the storm.

Watch our webinar to take an in-depth look at FD70 including:
- Enhanced reporting capabilities in sand and dust obscuration, as well as freezing rain and drizzle detection
- Key innovations including single-particle analysis, unprecedented accuracy and reliability, comprehensive measurement and data security
- How FD70 enhances Auto-METAR reliability and provides the best-in-class Runway Visual Range (RVR) reporting

4 ways the Forward Scatter Sensor FD70 compares to human observation

PerceptionHumanFD70
Identifying precipitation typesHuman observation is often in close agreement with the FD70, though distinguishing between snow and mixed rain-snow for example can be more challenging.Thanks to Vaisala’s patented measurement technology, FD70 can quickly identify mixed precipitation types such as rain and snow. High-resolution cameras have confirmed its accuracy in field tests.
Reporting rapid changes during an eventStudies show that with conventional sensors, in 40% of times when METAR reports are amended by a human observer, it is because of false present weather information.Automatization is sometimes essential to reach operative needs, especially for rapidly-changing parameters. The FD70 can quickly identify and report in these conditions.
Droplet size classificationWhile precipitation is easy to identify in larger sizes, detecting type in smaller sizes becomes less accurate.The FD70 accurately distinguishes between drizzle and rain, detecting all particles as small as 0.1mm
Pinpointing the onset and end of an eventThe human eye can generally detect the onset and end of precipitation, but may miss precise timingThe FD70 never sleeps. It reports the beginning and end of an event from several minutes to more than half an hour earlier than human observation.

Resources

Aircrafts are seen lined up at an Airport
eBook

Forward Scatter Sensor FD70

The FD70 is the most accurate and advanced present weather sensor available. In this eBook, learn how the FD70 reliably identifies everything from freezing conditions to rain and drizzle, and even sand and dust, using patented measurement technology.

Industry Applications

Teamworking

Get Started with Forward Scatter Sensor FD70

Contact Vaisala to learn how fast response times and superior ability to identify even the smallest precipitation events can drastically improve your present weather reporting and help you make the best decisions — under even the most challenging weather conditions.

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