The wheel on the right side of the image is the tiller wheel, used to steer the airplane on the ground.

FORBES: What Do All The Controls In An Airplane Cockpit Do?

And pilots will have to do that on top of flying the airplane or maneuvering it on the ground, "which is not an easy thing to do, " Rinaldi added.

NPR: FAA To Close 149 Air Traffic Towers Under Cuts

On the ground in Sunriver, Peter stood by the airplane, dropped his pants and flooded the tarmac.

FORBES: Do You Want Thunderstorms Or Forest Fires?

The batteries are not essential during flight as they are mainly used on the ground during maintenance activity, Sinnett said, such as providing navigation lights and braking while the airplane is towed.

CNN: Boeing announces changes to Dreamliner battery system