No thunder in sight

AVTECH Sweden’s proFLIGHT helps pilots pick the perfect flight path
Avtech, Airlines, Pilot, AI
Photo by Tom Barrett on Unsplash

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Thunderstorms are not usually dangerous for airplanes, but they are often followed by turbulence that really can rock. Now all airline pilots have an option to try out proFLIGHT by Swedish AVTECH, an app that very precisely shows where the actual threats are in real time along the trajectory.

Very accurate 10K weather data from Met Office UK, in combination with IATA’s Turbulence Aware observations (for participating airlines) as well as real-time satellite thunderstorm data, provided by Airbus Defence and Space GmbH allow the app to track the plane.

“All this information is continuously updated in our back-end systems and available to proFLIGHT users at all time," said Niklaes Persson, head of R&D at AVTECH and a commercial airline pilot himself. “To put it shortly, our back-end system takes in enormous amounts of weather-related data all the time, which is then refined on demand to single trajectories that can be sent to the aircrafts through normal aviation communication channels.”

Persson explains that thunderstorms are usually caused by Cumulonimbus, abbreviated CB, which is a vertical cloud that is capable of producing lightning and other dangerous severe weather when carried upward by powerful air currents.

“Now the app includes a new CB layer that displays current position and the state of CB-cells on a single aircraft’s route," he said. “In addition, proFLIGHT now also includes a forecast of the development and movement for each of the cells with an accuracy of about one hour. This way the pilot can choose the best route to avoid probable turbulence.”

The CB layer in proFLIGHT is based on real-time satellite observations of CB-clouds.

“Their first intention was to provide data from only a smaller part of Europe, since the satellite data is very expensive,” Persson said. “When the project evolved, however, Airbus opened up a corridor for us all the way to Asia. So now we can offer a truly outstanding possibility for aircrafts to avoid thunderstorms and turbulence along their trajectories on many of the major routes from Europe to Asia.”

Combining forecast with real outcome
Another big improvement in proFLIGHT is the integration of IATA’s real-time Turbulence Aware Data, which is a global, industry-wide, data exchange platform for turbulence reports from the built-in sensors in aircrafts. This means that airplanes can continuously give an anonymised, detailed report for each data point along the route, including for example altitude, wind and temperature data, however, this data is only available to airlines that are part of the program.

Persson points out that when thousands of aircrafts share their data in real-time through IATA’s data network, it significantly improves the situational awareness of pilots that are approaching the area in question.

“Combined with Met Office’s 10K weather and the thunderstorm data, the measured turbulence data makes our thunder and turbulence warnings even more accurate,” he said. “This makes it possible for pilots to choose optimal, smooth flight paths, which in turn reduces fuel costs and has a positive impact on passenger experience and brand perception.”

Although aircrafts have flight radars, they can only spot severe weather from a limited distance.

“With proFLIGHT, aircrafts can look hours ahead for very precise turbulence forecasts and compare them with real observations through IATA’s Turbulence Aware,” Persson said. “Since turbulence is moving all the time, you need both reliable forecasts and real observations.

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