title: MS1
text: # MS1
  
  MS1 may refer to:
  
  * FMA Ae. M.S.1, an air ambulance version of the 1932 Argentine FMA AeC.2 utility aircraft
  * MS1, the first device in tandem mass spectrometry
  
  MS-1 may refer to:
  
  * Mercury-Scout 1, a 1961 satellite
  * Mississippi's 1st congressional district
  * Mississippi Highway 1
  * Roland MS-1 Digital Sampler
  * T-18 tank
  * A type of Trams of Putilov plant
  * MegaSquirt 'n Spark-Extra (MS1/Extra), a type of MegaSquirt electronic fuel injection controller
  * MS-1 (wrestler), Mexican professional wrestler
  * Metres per second, the SI unit of velocity, written as $ms^{−1}$
  * A first year medical student
  * MS-1 (spaceplane), a proposed US Spaceplane
  