The sled kite was invented and patented by the American, William Allison in the 1950s. This kite helped pave the way for a class of kites known as "semi-rigid."
References
Sled kite Wikipedia(Text) CC BY-SA
The sled kite was invented and patented by the American, William Allison in the 1950s. This kite helped pave the way for a class of kites known as "semi-rigid."