Question id 101 - Flight performance and planning - EASA Drone Quiz

At the intersection of the diagonals joining the opposing motor pairs
On the flybar, i.e. the stabilizer bar where the propeller blades engage
3 Sequences, 4200 metres per hour, 90% residual efficiency after 180 cycles
3 cells in series, 4200 milliAmpere hour, continuous discharge of 90 times capacity and 180-fold peak