GP 38 Type Bo-Bo 0440 Horsepower 2000 Diesel Engine 645E Type Blower Aspirated Cylinders 16 Cylinder Bore And Stroke 9-1/16" x 10" Operating Principle 2 Stroke Cycle, Full Speed 900 RPM Idle Speed 315 RPM Traction Motors Model D77 Number 4 Axel Hung Series Wound www.trainsimcentral.co.uk (c) S.Green & E. Weber