. "Curtis D. Summers (September 17, 1929 \u2013 May 11, 1992) was an engineer and American roller coaster designer credited for designing or providing structural engineering on 25 wooden roller coasters around the world. He earned a degree in Architectural Engineering at Kansas State University and was a registered engineer in 40 states."@en . "1992-05-11Z"^^ . "1929-09-17Z"^^ . "Engineer and roller coaster designer" . "Summers, Curtis D."@en . "1929Z"^^ . . . "1992Z"^^ . "Curtis D. Summers"@en .