This has to be the smallest Remote Controlled Airplane in the world.  Measuring in at 3.5 inches, the Plantraco Micro Butterfly  has a 4mm Motor with 32mm Direct Drive Propeller, a 0.38 gram receiver, a micro actuator for the rudder (rudder only on this one folks) and the remote has a charger for the plane’s LP30 lithium polymer Bahoma cell.  The remote runs on 4 AA Batteries.

This tiny airplane can be had on the Microflight Plantraco web site for $149.99  To see how cool this little thing is, check out the youtube below.