R1-series astromech droids were a model of large astromech droid. An R1 was among the droids on board he sandcrawler that Rebel droids R2-D2 and C-3PO were brought aboard during the secret mission to the planet Tatooine. Along with the rest of the droids on board, the R1 unit was brought out for display at the Lars moisture farm; however, it was not selected for purchase by the moisture farmer Owen Lars. The sandcrawler was later attacked by Imperial stormtroopers who killed the Jawa crew and destroyed their droids.
- Star Wars: Absolutely Everything You Need to Know (First identified as R1-series astromech droid)