The Fokker F.32 was a passenger aircraft built by the Fokker Aircraft Corporation of America in 1929 in their Teterboro, New Jersey factory. It was the first four-engined aircraft designed and built in the United States. Ten examples were built, but they only entered limited commercial service; their high cost and problems with the cooling of the after engines proved prohibitive. The United States Army Air Forces evaluated the F.32 as the YC-20, but did not purchase it.
Read more about Fokker F.32: Crash, Power Issues, Orders, Service With Western Air Express, U.S. Army Air Corps Trial, Operators, Specifications