NS GP60 7104 plus 3 other GP60's are the power for train 24V as it charges east on track 1 at Macungie. As a testimate to how short and light this train was, 24V had a restricting signal at CP Alburtis and had slowed to 10 MPH. When the train passed the photographer a mile to the east it was back up at 50 MPH track speed.