box kite
Box kite - Wikipedia
A
box kite is a high performance
kite, noted for developing relatively high
lift; it is a type within the family of cellular kites. The typical design has four parallel struts. The box is made rigid with diagonal crossed struts. There are two sails, or
ribbons, whose width is about a quarter of the length of the box. The ribbons wrap around the ends of the box, leaving the ends and middle of the kite open. In flight, one strut is the bottom, and the bridle is tied between the top and bottom of this strut. The dihedrals of the sails help stability.
The box kite was invented in 1893 by
Lawrence Hargrave