Designed by Professor Rudiger Groning of Munster Germany the Roto Kite’s main lifting surface is a spinning propeller. The kites whirling motion is a real eye catcher. A clever method of differential  strut stiffness automatically adjusts prop pitch to different wind  speeds.
 

Size (W X L) 30 x 60 in. /76.2 x 152.4 cm.
Wind Range 5 ~ 18 mph
Fabric Ripstop Nylon
Frame Carbon & Fiberglass
Packaging Nylon Case
Line Recommended 80 lb. Test Line