MTH Premier 20-21735-1 O Scale GE AC4400 Diesel Union Pacific UP 6297 PS3 Roadname_Penn Central - PC 26 sec/60deg

26 sec/60deg

Route Creation

LEGO® Speed Champions cars are now 25% bigger and even more realistic

Slash 4X4 Ultimate arrives fully assembled with factory-installed telemetry sensors and a Wireless Link equipped TQi™ 2

MTH Premier 20-21735-1 O Scale GE AC4400 Diesel Union Pacific UP 6297 PS3 Roadname_Penn Central - PC 26 sec/60degMTH Premier 20 21735 1 O Scale GE AC4400 Diesel Union Pacific UP 6297 PS3 From the dawn of dieselization through its first six decades, virtually every American diesel locomotive used DC traction motors. By the early 1990s, however, a series of technological advances allowed designers to tap the inherent superiority of AC traction namely, the ability of an AC motor to start a heavier load than a DC motor, with the same prime mover. The superior