RS1
RS1 or RS-1 denotes:
- ALCO RS-1 , a diesel locomotive produced by the American Locomotive Company
- Stadler Regio-Shuttle RS1 , diesel multiple unit from the railway manufacturer Stadler Rail
- RS1 (missile) , an American launch vehicle project
- Radio 1 (satellite) , a Soviet amateur radio satellite
- Cycle expressway 1 , a partially built, planned cycle expressway between Duisburg and Hamm
- RS 1, a line of the Regio-S-Bahn Bremen / Lower Saxony
- RS-1 , an airship from the 1920s; see United States Military Airship List # RS-1