"Vought OS2U-2 / 3 "Kingfisher"". Coast Guard Aviation Association. United States Coast Guard Aviation History. Archived from the original on 14 August 2024. Retrieved 7 January 2023.
Noles Jr., James (February–March 2005). "Old, slow and ugly"(PDF). Air and Space. p. 66. Archived from the original(PDF) on 7 September 2008.
"Vought OS2U-2 / 3 "Kingfisher"". Coast Guard Aviation Association. United States Coast Guard Aviation History. Archived from the original on 14 August 2024. Retrieved 7 January 2023.