Technical Specifications
The railbus used chassis of a Leyland Tiger bus, though once its body was constructed it did not look like a bus. It had four wheels, was 7.6 metres long, and weighed 8 tonnes unladen. Power was provided by a Leyland 8.6 litre diesel engine that could produce up to 70 kW at 1,950 rpm and propel the railbus at speeds of up to 80 km/h. Electric lighting and thermostatically controlled hot air radiators were both fitted Up to 19 passengers could be carried, though a full load of a tonne of newspapers meant only 13 could fit.
Initially, the two railcars had one technical difference: RM 20 was built with a four-speed manual gearbox, while RM 21 utilised a fluid torque converter. Not long after services began, RM 20 was also fitted with a fluid torque converter.
Read more about this topic: NZR RM Class (Leyland Diesel)
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