Donlan, C. J.. Spin tests of a low-wing monoplane to investigate scale effect in the model test range, May 1941. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc53320/. Accessed May 21, 2013.
Donlan, C. J.. Spin tests of a low-wing monoplane to investigate scale effect in the model test range, May 1941. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc53320/. Accessed May 21, 2013.