Reed, Wilmer H., III. An analysis of the effect of a curved ramp on the take-off performance of catapult-launched airplanes, report, November 5, 1952; (https://digital.library.unt.edu/ark:/67531/metadc59384/m1/1/: accessed September 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .