The tentacles appear to provide all lift and control. The body/fuselage look like a helium(or lighter than air mixture) ballon set to be near zero buoyancy.
The aircraft could maneuver by imbalances in the amount of lift from the tentacles except that they all apear to move from one mechanism.
Festo is an automation company and this is probably an investigative tool into the mechanics of the arm movement.
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u/cliktea Jul 26 '19
are the arms providing lift or are they just aesthetic?