An ATR42 equipped with special probes took off on Monday from Toulouse-Francazal towards Montpellier to take air samples.
More flights scheduled on Tuesday further north.
A second aircraft, a Falcon 20 is due to conduct more tests.
Aircraft equipped by SAFIRE and the CNRS ( FRench national research and science center)
Reacting to national critics, according to scientists, such experiments usually take 6 months preparation and quote:
"We are not a quick response team, usually such experiments are prepared 6 months in advance".
We might know what 's up there ! ( finally...)
