STAR TREK STARSHIP CLASSES:  TIMELINE

2150 2160     2180      2200      2220      2240      2260      2280      2300      2320      2340      2360      2380     2400
.    v   .    v    .    v    .    v    .    v    .    v    .    v    .    v    .    v    .    v    .    v    .    v    .    v

*-----                      Enterprise
      *---------------*     Daedalus                                                                                          
                            Constitution      *--------------------                                                           
                            [Class-IV]                -                                                                       
                            Antares                      ------------------------------------------------------               
                            [Dreadnought]                  -                                                                  
                            Constitution--refit            -------------                                                      
                            [Scout]                         -                                                                 
                            Soyuz                              -----*                                       *---              
                            Oberth                                --------------------------------------------                
                            Miranda                               -----------------------------------------------             
                            Constellation                         ---------------------------------------------             
                            Excelsior                             *----------------------------------------------             
                            Excelsior--refit                          -----------------------------------------               
                            Springfield                               --------------------------------------                  
                            Whorfin                                   --                                                      
                            Sydney                                     -----------------------------------------              
                            Apollo                                                     -----------------------                
                                                                Renaissance                 ------------------                
                                                                Hokule'a                     -                                
                                                                Ambassador                      ----------------              
                                                                Mediterranean                     -----------                 
                                                                [Raven]                               -                       
                                                                Galaxy                                *----------             
                                                                Istanbul                                  -----               
                                                                Merced                                    ---                 
                                                                Miranda--refit I                          -                   
                                                                New Orleans                               --                  
                                                                Niagara                                   --                  
                                                                Wambundu                                  ----                
                                                                Bradbury                                   -                  
                                                                Challenger                                 -----              
                                                                Cheyenne                                   --                 
                                                                Deneva                                     -                  
                                                                Freedom                                    -                  
                                                                Korolev                                    -                  
                                                                Miranda--refit II                          -                  
                                                                Nebula                                     -----              
                                                                Rigel                                      -----              
                                                                Yorkshire                                   -                 
                                                                Danube                                      *----             
                                                                Danube--refit                               *---             
                                                                Akira                                        ----             
                                                                Andromeda                                    ---              
                                                                Chimera                                      -                
                                                                Nova                                         ---              
                                                                Olympic                                      -------------    
                                                                Peregrine                                    ----             
                                                                Peregrine--refit                             -                
                                                                Sovereign                                    *---             
                                                                Defiant                                      *---             
                                                                Intrepid                                     *---             
                                                                Norway                                        -               
                                                                Sabre                                         --              
                                                                Steamrunner                                   ---             
                                                                Yeager                                        --              
                                                                Yellowstone                                   *               
                                                                [Mission Scoutship]                            -              
                                                                Prometheus                                     *              
                                                                [Holoship]                                     *              
                                                                Constitution--emergency variant                *              
                                                                Excelsior--emergency variant I                 *              
                                                                Excelsior--emergency variant II                *              
                                                                Excelsior/Constitution--emergency variant      *              
                                                                Intrepid/Constitution--emergency variant       *              
                                                                Galaxy--refit                                            -    
     
     2160     2180      2200      2220      2240      2260      2280      2300      2320      2340      2360      2380     2400
v   .    v    .    v    .    v    .    v    .    v    .    v    .    v    .    v    .    v    .    v    .    v    .    v

     *  end of Earth/Romulan war                                             UFP/Cardassian war    *********
     *  UFP founded                                                                 Borg attacks on Earth  *  *
       UFP/Klingon conflicts     ---**********************************--------------------------- 
                                                      Cardassian occupation of Bajor    *********************
                                                                                               Dominion War  ****

(TV series)
ENT                                                      TOS                                              TNGDS9VOY
(motion pictures)                                      *     **  **                                     ***       *





NOTE:  for ship classes, * indicates time of introduction/retirement when known; - indicates known years of service