Ren?Lorin, Morize, Harris proposed systems for creating a jet efflux.
2.
The rudder projected below the boom into the jet efflux and provided undercarriage was a simple pair of skids attached to the box structure.
3.
Another difference was the tail unit, the Ariel II had a single fin and rudder and used jet efflux from the turbine to provide directional control, a directional vane linked to the rudder directed the efflux.