produced by Industrial Automaton, the R4-series of astromech droids was developed for ground-based use by civilians who needed repair and maintenance of landspeeders and other repulsorlift vehicles. In an unusual move, Industrial Automaton targetted the R4-series specifically for the Outer Rim market. Based on the R2 series but with fewer astrogation capabilities, the R4 was successful because it was cheap and reliable, meeting the needs and requirements of its target audience. It utilized the existing Intellex IV droid brain, which was populated with repulsorcraft designs instead of starship information. Note that the HoloNetNews.com website indicates that the R4-series was designed as agromech droids.