Anyone know what the cooling fan is for on the Inspire 1?

There is a small cooling fan just under the front top of the canopy.

Obviously something runs hot and DJI considered that normal airflow was not sufficient (that's a scary thought for something airborne with a LOT of airflow over it)

I have never seen this on ANY multirotor before including large heavy lifters that haul Dragons or Mysterium-X's.

Can anyone throw some light on this?

rilot said:

Probably the lightbridge transmitter. The stand alone lightbridge has a fan in it too.

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Ah... that would make sense. Good deducement !