" A pre-First World War demonstration of a two man kite designed by Samuel Franklin Cody for use by the British Army's Royal Engineers Balloon Section." Demonstration of a two man kite designed by S F Cody for use by the British Army Royal Engineers Balloon Section. Such kites were intended for use when high wind speeds (above twenty miles an hour) prevented the use of observation balloons. The kite could ascend to heights of 2,500 feet in the right conditions.