nacelle

The point C is the centre of the propeller, or, in the case of a "pusher" aeroplane, the centre of the nacelle.

The blood from his wound spurted all over the nacelle, obscuring the instruments, and in addition his machine caught fire.

Nacelle—That part of an aeroplane containing the engine and pilot and passenger, and to which the tail plane is not fixed.

Then his glances fell upon the aviator just on the point of stepping from the nacelle, or cockpit.