I was flying one of my 6S 5000 , nothing 3D just sport. After 5 mins timer went off so I landed. Open the canopy, unplug the battery and it started smoking. No flames just dense gray smoke, lots of it.
i went to get the clubs fire extinguisher, it was far away of course, when I came back it has stopped. There was no damage to the plane since there was never any flames, just thick smoke.
the battery was intact when I install it in the plane, it was freshly charged the night before and it was like a yr old.
to check the ESC and motor I put another battery on the plane and it worked wonders.
I'm still baffled about why this happened