- Mission statement
- Our values
- Key figures
- Corporate Social Responsibility (CSR)
- Altran Foundation for Innovation
- Altran and Solar Impulse
- Official engineering partner
- Altran guides Solar Impulse
- Altran experts' contributions
- Behind the scenes of the Solar Impulse missions
- THE i PROJECT
- Altran in the world
Stéphane Yong – Expert on Solar Impulse in the "simulation" team
"My role in the Solar Impulse project is related to the 'Simulation' aspect. I modelize the plane's in-flight behavior accounting for all environmental parameters: location, sun exposure, winds strength, cloud cover...
At the beginning, the simulator was developed in order to proportion the HB-SIA with the aim to be able to make the night flight. In the same way, we now use the flight simulator to define the minimum characteristics of the second plane so that he could make the world tour. In particular, the HB-SIB has to be less sensitive to atmospheric humidity and even more energetically powerful so that he could fly with non optimum meteorological conditions."