Royal Siamese Aeronautical Service Aeronautical Workshops aircraft

The Baribatra (Thai: บริพัตร, also spelled Boripatra or Boriphat) or Bomber Type 2 was a two-seater light bomber aircraft of the 1920s designed and built by the Royal Siamese Air Force's Aeronautical Workshops. A small number were built for the Thai Air Force, with the type being the first Thai-designed aircraft.

The Prajadhipok (Thai: ประชาธิปก), also known as Fighter Type 5, was a single-seat fighter, the second indigenous Siamese aircraft design.