"Pratt & Whitney R-985 Wasp Junior" ↑ Pima Air & Space Museum, Pratt & Whitney R-985 Wasp Junior, retrieved December 25, 2009 . ↑ Aircraft Engine Historical Society, Image Galleries by Gary and Janet Brossett: Pima Air and Space Museum in Tucson, Arizona, archived from the original on August 27, 2009, retrieved December 25, 2009 .