Analysis of information sources in references of the Wikipedia article "英國鐵路220型柴聯車" in Chinese language version.
In the Voyager application, every car has a Cummins underfloor engine and alternator supplying power to a pair of body-mounted traction motors. Each drives one inner axle through a cardan shaft and axle-mounted final drive gearbox. Thus all 272 bogies are identical
Drive configuration [diagram]
Drive configuration [diagram]
In the Voyager application, every car has a Cummins underfloor engine and alternator supplying power to a pair of body-mounted traction motors. Each drives one inner axle through a cardan shaft and axle-mounted final drive gearbox. Thus all 272 bogies are identical