I was about to ask if anyone on here is a 20s fan. They're a little odd to say the least. I've only seen a few, and always in sidings, never moving anywhere. Have I missed out?
They make a great Whistling noise.
They were the first of the 1955 Modernisation Plan loco types to appear, and clearly were of a design ethos similar to the steam locos they would be replacing, i.e. only one cab at the end of the loco. They often ran in pairs, 'nose to nose' as a result.
The class 17 'Claytons' were meant to be a replacement/upgrade for them, but they had such an awful performance that they had to start building more class 20s in the '60s instead.... whilst the class 17s were all withdrawn by 1971!
Along with the class 08/'09s, the '31s and the '37s (1959) they are the great survivors from the 1950s, and look to have a very real future on the network still!
A fitter at Bo'ness explained to me once why they have survived as long as they have. They are devastating simple, I mean, everything is all accessible in that 'nose'..... you just have to open one of the side doors and vela, you are there! (a bit like the later class 58s).