[paulonsite]

Originally Posted by Astraeus

A class 55 Deltic Engine. 37 was an English Electric standard powered diesel.
Well spotted.
22 production machines that replaced a much larger number of A4 etc steam engines.
Spent a bit of my youth chasing the 55s around Scotland. I presume you kniw a bit about them but for others...

The English Electric Deltic Class 55 diesel was powered by two delta formation two stroke engines. They were in fact marine engines. The six pistons on each delta formation pushed against each other in pairs. These two power plants each powered a generator that drove 6 ( 3 each bogie) traction motors. This produced amazing power and a very unique sound. ( and a lovely smokey diesel plume out of the two exhausts. What machines. In fact the ZT 260 of trains. Most powerful diesel locomotive in the world at time of production!

Back in the day when as a country we still built trains!!!!!

At Dundee in time leading up to withdrawal
I am in that photo somewhere.... With more hair and a much slimmer waistline.