The Baribatra (, also spelled Boripatra or Boriphat) or B.Th.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.
==Design and development== The standard bomber aircraft of the Royal Siamese Air Service in the 1920s was the Breguet 14, which was license-built by the Air Service's Aeronautical Workshops as the B.Th.1 at Don Muang, powered by surplus 300 hp (224 kW) Renault engines purchased from France. In 1927, the price of Renault engines was raised by the supplier, and it was decided to investigate fitting the Breguets with alternative engines. In order to investigate the characteristics of possible engines, it was decided to build a test bed aircraft, which might also act as a replacement for the Breguet. Design of the new aircraft, designated B.Th.2, was assigned to Major Luang Vejayanrangsrit, the assistant director of the Aeronautical Workshops, and later commander of the Royal Siamese Air Force.
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