. . . . . . "George Alexander Spratt (November 1, 1870 \u2013 November 24, 1934) was an American inventor and pioneer in aviation design. In collaboration with the Wright brothers, Spratt demonstrated the cable-stayed triangle control frame for use in mass-shifting the pilot and pilot holding to control the attitude of a lifting wing for any type of aircraft that could benefit from such arrangement. This arrangement ended up being the sub-assembly most used in hang gliders, powered hang gliders, trikes, and ultralights."@en . . . . . . . . "5955"^^ . . . . . . . . . . "George A. Spratt"@en . . . . . . "1123830537"^^ . . . . . . . . . . . . . "George Alexander Spratt (November 1, 1870 \u2013 November 24, 1934) was an American inventor and pioneer in aviation design. In collaboration with the Wright brothers, Spratt demonstrated the cable-stayed triangle control frame for use in mass-shifting the pilot and pilot holding to control the attitude of a lifting wing for any type of aircraft that could benefit from such arrangement. This arrangement ended up being the sub-assembly most used in hang gliders, powered hang gliders, trikes, and ultralights."@en . . "15680196"^^ . . . . . . . . . . . . . . . . . . . . . . . . . . .