DRRY Steam Engine C&O No. 308 Operational Instructions, added to web site.
Time Table No. 45 and associated time table chart, added to web site.
Filling out the Dispatcher's Record of Movement of Trains "The Train Sheet," added to web site.
Grand Crossing Interlocking Control Machine Operators Manual edition of 3-15-2018, added to web site.
Grand Crossing Interlocking Train Crew Manual edition of 3-14-2018, added to web site.
Fundamentals of Railway Curve Superelevation edition of 4-8-2017, added to web site.
Principles of Injector Operation edition of 5-29-2016, added to web site.
Steam Locomotive Valve Gear Animations via youtube, added to web site.
Fundamentals of Steam Locomotive Boiler Water Level Management edition of 3-7-2016, added to web site.
Robinson Normally Closed Track Circuit Electrical Properties Calculator. Example of Excel spread sheet results for track circuit designed for use with 1:8 model scale practice aluminum rail track and Union Switch and Signal model DN-11 direct current neutral track relay drop-away produced by car wheel set shunt resistance of 10 ohms or less, added to web site.
Fundamentals of Steam Locomotive Tractive Force edition of 1-4-2016 added to web site.