The Type 143, or Bolivian Scout, was a development of the earlier Vickers Type 141 fighter, with the Type 141's Rolls-Royce Kestrel engine replaced by a Bristol Jupiter VIA, already powering other aircraft used by the Bolivian Air Force, and a stronger undercarriage to cope with the rough airfield surfaces in Bolivia.
The Type 143, or Bolivian Scout, was an upgraded version of the Vickers Type 141 fighter, featuring a Bristol Jupiter VIA engine instead of the Rolls-Royce Kestrel, which was already used by other Bolivian Air Force aircraft, and a reinforced undercarriage to accommodate Bolivia's rugged airfields.