Hello again! :D

A video long requested since I started doing these documentaries around 2 years ago, we venture back to the East Coast Mainline, where, for over 20 years, the top expresses of this integral route were powered by a series of 22 specially built locomotives known as the Class 55s, the first diesel engines to operate at a sustained 100mph in the UK, and, through their styling and the superb sound of their humming Napier Deltic engines, left an impact on the UK railway scene that rivalled the classic steam engines they had been built to replace.

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Thanks again, everyone, and enjoy! :D

References:
- The Deltics and Baby Deltics A Tale of Success and Failure by Andrew Fowler (and his respective sources)
- Class 55 Deltics: From the Final Years to Preservation by Colin Alexander and Ian Beattie (and his respective sources)
- Wikipedia (and its respective references)