We at Black Hawk Models have been producing Whip Powered Control Line models for several years.  These were invented by "Jim" Walker during the war as a way to keep control line going while engines and fuel were not available.  No engine needed ... pull the plane through the air by the control lines running up a fishing pole.  Yes, you still control the elevator and plane by way of a control handle and bellcrank just like any other control line model.  We are about to release our Christmas Special for this year.  It contains a simple tethered plane (Polish Hawk), a hand launched glider (Zoomer) and a NEW whip powered control line model (Black Hawk Pursuit) with handle and lines included.  For Christmas we are also adding a bottle of nontoxic glue and sandpaper.  Suggest retail price $20.00 
     This is a great way to start a youngster on the road to modeling and control line flying.

Here is the BLACK HAWK PURSUIT:
 

Hummm ... Well Walkers invention was a basic 1/2A profile control line model (P-39) with weight in the nose to simulate the weight of an engine.  He used a plywood bellcrank pined in a slot in the fuselage and a plywood control horn.  19" wing span for some idea of the general size.

Larry