The Stabilized Automatic Bomb Sight, or SABS, was a Royal Air Force bombsight used in small numbers during World War II. The system worked along similar "tachometric" principles as the more famous Norden bombsight, but was somewhat simpler, lacking the Norden's autopilot feature. The system remained hand built throughout its history and was produced in small numbers. In the end, the 617 would also be the only squadron to see operational use of the SABS, using it with the Tallboy and the larger Grand Slam. Some Avro Lincolns also featured the SABS, but saw no service use.