CSM

CSM is the acronym for Command and Service Module used in the Apollo Project. This term is used when the Command Module/CM and Service Module are in joint configuration. The below diagram (Modified from the Skylab Write up by Hooverdirt) shows what I mean:

CSM

     Service Module

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                   \|/
                                                                       
               @############M########
               #......    ..=X     /@#X
              %#           ####-   /- #@    
  ;#M-        %/            #@     :-  /#H
  X/MM###-   .X/                   :-    M#
  %-    M#M+. X/                   =:     :##
  %-      ,##.%/                   :/       X##
  %/        +##/                   -/   .   ./#M
  +/         #;/                   -/       ###M:
  %/         /-/                   -M       ##/M
  +/         @#/                   ./        ###
  %/        #M#/                   ./       $M
  $=      /#H %/               .   ./ .   .##
  #:  .,@##.  X/                    #  . /@
. #/@###@.    X#           ..$      #   ## 
  %##/        %/           /###:   .X ;#M
              ;#           +X##;    ###=
            . .#/#//%#%%#XXX$XX#XX#H#
                                          /|\
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                                           |

	         Command Module

The CSM was also used in all three manned missions to the Skylab and one was used in the Apollo-Soyuz test project. Apollo-Soyuz was the last time America had a splashdown with a Command Module.