Tied down by Wright Brothers patent issues and a non-committal government, aviation design, development and production in the United States was stymied leading up to World War 1. As such, American air power was stocked with many European types when the nation committed to war in 1917. Some homegrown developments eventually did materialize though American aces were born largely through piloting British and French fighters.
There are a total of (44) World War 1 U.S. Military Aircraft in the Military Factory. Entries are listed below in alphanumeric order. Flag images indicative of country of origin.