Inventor David M. Checkley Patent number 3,860,204
issued on January 14th 1975
The primary object of this invention is to build a Allison Sled type
kite using the material
of the main sail as longitudinally stiffening.
The material used for construction of this kite as mention in the patent
can be any light
material that is impervious to the passage of air. The patent suggests
a variety of plastic
film and tight weave fabrics but the inventor prefers paper to cut
cost.
The paper material needs to be of a substantial stiffness.
The paper is folded and glued to form longeron stiffening (see
graphic drawing).
A port is suggested when flown in strong winds, paper streamers are
added for stability.
