This airplane was a modified SBU-2

In 1936 Vought exported fourteen SBU-1’s to Argentina under the V-142A designation.  The Argentine models featured provisions for a 500-pound bomb and a rear seat gunner.  The Argentines were so proud of their new airplanes that the first V-142A delivered was landed in the streets of Buenos Aires so the general public could view it.  These airplanes served in the Argentine military well into World War II times before being retired.