The Ku-1 was built almost entirely from wood / plywood and was a high-wing glider with twin boom tail sporting a fin and rudder at the end of each boom, with a tail-plane and elevator between the boom ends.
The Ku-1 was built primarily from wood/plywood and showcased a high-wing glider layout, distinguished by twin boom tails sporting fins and rudders at their termini, accompanied by a tailplane and elevator situated between the boom extremities.