The Bird of Paradise, a U.S. Army Air Corps Fokker tri-motor, completes the first transpacific flight, from the mainland United States to Hawaii.

The Bird of Paradise was a military airplane used by the United States Army Air Corps in 1927 to experiment with the application of radio beacon aids in air navigation. On June 28–29, 1927, the Bird of Paradise, crewed by 1st Lt. Lester J. Maitland and 1st Lt. Albert F. Hegenberger, completed the first flight over the Pacific Ocean from the mainland, California, to Hawaii. For this feat the crew received the Mackay Trophy.

The United States Army Air Corps (USAAC) was the aerial warfare service component of the United States Army between 1926 and 1941. After World War I, as early aviation became an increasingly important part of modern warfare, a philosophical rift developed between more traditional ground-based army personnel and those who felt that aircraft were being underutilized and that air operations were being stifled for political reasons unrelated to their effectiveness. The USAAC was renamed from the earlier United States Army Air Service on 2 July 1926, and was part of the larger United States Army. The Air Corps became the United States Army Air Forces (USAAF) on 20 June 1941, giving it greater autonomy from the Army's middle-level command structure. During World War II, although not an administrative echelon, the Air Corps (AC) remained as one of the combat arms of the Army until 1947, when it was legally abolished by legislation establishing the Department of the Air Force.