There's sufficient room to store battery-packs in the overhead, this showing how they address the respective ESC. Opted for a top-mounted installation to raise connections clear of the propeller, which now sweeps the area below the drone. The controller, radio receiver and GPS aerial will also be fixed topside (though in the past we've flown them inverted on the underside too).
To secure each ESC I've again used a strip of double-sided tape, reinforced by a pair of cable-ties. These techniques are borrowed from previous builds, the evolution toward a beta-product being a process of continuous improvement. Weight-wise we are up to 11.30kg (or 25lb) with just the Pixhawk controller and propellers remaining to be fitted.
This means we need over 70% thrust just to get airborne. This is marginal and might mean that all we'll get to show is an animated window-display... anyone got Selfridges number?
