How's the ride?

Pilots can use pilot weather reports and forecasts to help choose a route and altitude, but forecasts don’t show actual conditions and pireps are subjective. The new Reported Turbulence layer displays automated turbulence information recorded by Sentry and Sentry Plus receivers, including where flights are in smooth air.

“People tend to only report turbulent air, but you don’t actually know where there’s smooth air,” said Cole Crawford, ForeFlight senior product manager. The Reported Turbulence layer shows smooth air as a series of gray dots along an aircraft’s flight path; yellow, orange, and dark orange dots indicate light, moderate, and severe turbulence, respectively. Tap on a dot to show the reporting aircraft’s altitude, airspeed, and type and the age of the report. Pilots with Performance Plus subscriptions also can display turbulence in profile view to aid in selecting an altitude for the smoothest ride.

Although the FAA defines levels of turbulence from light through extreme, pilots’ interpretations vary. By contrast, the levels of turbulence for ForeFlight’s new feature are determined by algorithm. Attitude sensors within the Sentry and Sentry Plus devices measure and record the level of turbulence throughout the flight, and the receivers upload the data whenever an internet connection is available. The more Sentry devices in the air, the more data available to pilots—and Crawford put the number of Sentry and Sentry Plus units in the tens of thousands.

Reported Turbulence is available for Pro Plus plans and above as two subscription add-ons: Low, for reports up to 14,000 feet, and All, which extends to all altitudes. General aviation pilots who register their Sentry or Sentry Plus devices receive Low for no extra cost and a 50-percent discount on the All layer. Add-ons for customers without registered devices are $50 per year for Low and $100 per year for All. For business and enterprise pricing, contact ForeFlight.

[email protected]
foreflight.com