>> If steam locomotives are made today with modern technologies, will these be better than older
>> counterparts?
>>
>> I meant better efficiency, better driving controls (digital displays, AI robot fireman) etc.
Yes and no. Tornado is a "new" steam engine. It has normal controls and displays, albeit with modern safety aids like AWS/TPS, GSM/R and data recorder.
Tornado was built from the original plans using modern materials and techniques
The first time it was asked to do fully loaded test run at 100 mph it passed with flying colours. 9 months later when approved to do 90 mp with a full load of passengers it fractured its valve gear spreading bits everywhere and blocking the east coast main line fast line for 2 hours.
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