Why Is Mallard Still the Fastest Steam Locomotive

In 1938, a streamlined steam locomotive called Mallard hit 126 mph on Stoke Bank. 88 years later, no steam locomotive has officially beaten it. So why is Mallard still the fastest steam locomotive in the world? This railway history documentary covers: the 1930s speed race between the LNER and LMS Sir Nigel Gresley's A4 Pacific design the record run on 3 July 1938, and the bearing that overheated during it the 125 vs 126 mph debate Germany's rival, the Class 05 why diesel and electric trains left the steam speed record frozen in time We also look at where Mallard is today, at the National Railway Museum in York, and whether anyone could ever break its record. Where are you watching from? Do you think Mallard's record will ever be beaten? Tell us in the comments. #Mallard #SteamLocomotive #RailwayHistory