The Class 66 was created as a further development of the Class 59, of which only 15 were procured. 480 examples of the development originally commissioned by the English, Welsh & Scottish Railway were made for the British market alone. The 2400 kW powerful EMD type 12N-710 twelve-cylinder two-stroke diesel engines generate the energy for the six EMD-D43TRC traction motors. The top speed is 120 km/h. There is no train heating system on board. From 2012, the British railway company GBRf imported eight Class 66s originally used in continental Europe, while the EWS relocated some of their locomotives to France and used them on freight services there.
Different starting processes can be selected with F1: 1x press button = warm start / press button 2x = false start / press button 3x = cold start
F2 slows down the locomotive slowly.
F5 enables the heavy load mode: The diesel notch is always one up compared with normal operation. If you want to jump two notches, simply set CV 104 to 150 (instead of 130).
F8 turns on the manual ntoching. Once F8 is on, you can use F7 to notch up and F6 to notch down. F8, F6, and F7 must be turned off to return to normal mode. If F8 is off and you press F7, the prime mover will run to full speed.
F14, F18 and CV 170 value 0 or 1, can switch between a "normal announcement" or an announcement "with gong".
F9 can increase the speed of the spirax valve by double-clicking it. The speed levels are slow, medium and fast.
17 will bring the locomotive to full stop..
F28 and CV 164 = Value 0, 1, 2 or 3, can switch between different rail joints (three coupler can be activated with CV 165 = value 1).
F29 and CV 169 = value 0 or 1, can switch between the "Automatic Warning System (AWS)" or the "Train Protection and Warning System (TPWS)".