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3690cs-b&o Chessie System B&O #3690...
The Baltimore and Ohio purchased 16 GP40's in 1966 (#'s 3684-3699).  The #3690 was delivered in November 1966 in the standard blue B&O scheme.  It was repainted into Chessie colors some time during the Chessie Era.  This unit went on to work for CSX as #6506.  To see my GP40 project go to the Atlas GP40 tips page.

Below are two Dean Heacock pics of #3690.  The second is 33690 wearing its CSX number #6506.  6506 was retired in 2000.  It was one of the last surviving locomotives in Chessie paint.

Below is a pic of it as it looks coming out of the box.

Below is my finished locomotive ready to start hauling freight.  To see how I did this locomotive check out my Atlas GP40 page (the link is on the top of this page).