Everything in flow

GE/GM Aerial or SV

And the clue:

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{Spoiler}

thanks for the clue! ...now i'm gonna read what it is!

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Clue #2

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DGA

The Solution:

DGA Techniques Hydrodynamiques Center

This is the most impressive equipment in Val-de-Reuil (F) with the Bassin de traction Emile Barillon B600.

The tank is around 600m long, 15m large and 7m deep. It is the longest in Europe, and one of the most modern in the world, as it was inaugurated in 2004.

49°15'39.73" N 1°10'58.15" E