EMD SD40/Timeline

=== Timeline: ===
DateFormat = mm/dd/yyyy
ImageSize = width:900 height:auto barincrement:30
Period = from:01/01/1966 till:01/01/1990
TimeAxis = orientation:horizontal
PlotArea = right:30 left:0 bottom:50 top:5
Colors = id:barcolor value:rgb(0.99,0.7,0.7)
 id:line value:black
 id:bg value:white
PlotData=
 width:20 textcolor:black shift:(5,-5) anchor:from fontsize:s
 bar:1 color:powderblue from:01/01/1966 till:08/31/1972 text:SD40 (Jan 1966 - Aug 1972, 1,268 units produced)
 bar:2 color:powderblue from:06/01/1966 till:05/31/1970 text:[[EMD_SDP40|SDP40]] (June 1966 - May 1970, 20 units produced)
 bar:3 color:powderblue from:01/01/1969 till:01/01/1970 text:[[EMD_SD40A|SD40A]] (1969 - 1970, 18 units produced)
 bar:4 color:powderblue from:01/01/1972 till:10/31/1989 text:[[EMD_SD40-2|SD40-2]] (Jan 1972 - Oct 1989, 3,957 units produced)
 bar:5 color:powderblue from:06/01/1973 till:08/31/1974 text:[[EMD_SDP40F|SDP40F]] (June 1973 - Aug 1974, 150 units produced)
 bar:6 color:powderblue from:04/01/1974 till:07/31/1980 text:[[EMD_SD40T-2|SD40T-2]] (Apr 1974 - July 1980, 312 units produced) 
 bar:7 color:powderblue from:05/01/1975 till:12/31/1980 text:[[EMD_SD40-2W|SD40-2W]] (May 1975 - Dec 1980, 123 units produced)
 bar:8 color:powderblue from:04/01/1978 till:05/30/1978 text:[[EMD_SD40-2S|SD40-2S]] (Apr 1978 - May 1978, 5 units produced; Nov 1980, 4 units produced)
 bar:8 color:powderblue from:11/01/1980 till:11/30/1980
 bar:9 color:powderblue from:06/01/1979 till:07/01/1979 text:[[EMD_SD40X|SD40X]] (1979, 4 units produced)
 
ScaleMajor = gridcolor:line unit:year increment:1 start:01/01/1966
TextData =
 fontsize:L
 textcolor:black
 pos:(370,30) # tabs:(0-center)
 text:"SD40-Series Production Timeline"