Curtiss A-8
The A-8 was a low-wing monoplane ground-attack aircraft built by the United States company Curtiss, designed in response to a 1929 United States Army Air Corps requirement for an attack aircraft to replace the A-3 Falcon. The Model 59 "Shrike" was designated XA-8 (the "Shrike" nickname was not officially adopted).
Read more about Curtiss A-8: Development, Operational History, Variants, Operators, Specifications (YA-8)