Flight International, Volume 42.
Popular Science, September 1943.
Dana T. Parker, Building Victory: Aircraft Manufacturing in the Los Angeles Area in World War II, Cypress, CA, 2013, ISBN 978-0-9897906-0-4, pp. 51-52, 56. ISBN 978-0-9897906-0-4. /wiki/ISBN_(identifier)
Journal of the American Society of Naval Engineers, Volume 52.
Charles Barton (1982). Howard Hughes and His Flying Boat. Fallbrook, California: Aero Publishers. p. 85. OCLC 561599885. https://archive.org/details/howardhugheshisf00bart
Barton, p. 83.
Frank Woodring; Suanne K. Woodring (1982). Fairchild Aircraft. Charleston, South Carolina: Arcadia. p. 22. ISBN 9780738544397. 9780738544397
Dana T. Parker, Building Victory: Aircraft Manufacturing in the Los Angeles Area in World War II, Cypress, CA, 2013, ISBN 978-0-9897906-0-4, pp. 51-52, 56. ISBN 978-0-9897906-0-4. /wiki/ISBN_(identifier)
Barton, p. 84.
Charles Barton (1982). Howard Hughes and His Flying Boat. Fallbrook, California: Aero Publishers. p. 85. OCLC 561599885. https://archive.org/details/howardhugheshisf00bart
Richard Ballard, "Plastic Airplanes", The Ohio State Engineer, April 1942, pp. 24, 26. https://books.google.com/books?id=ConmAAAAMAAJ&pg=RA4-PA24