Geograph - photograph every grid square

This is a view into one end of the engine compartment of No. 55 019 Royal Highland Fusilier. The big lump nearest the camera is the dynamo (DC) while the engine proper is beyond the pinkish pipework. This is replicated at the other end of this long compartment. The engine was stopped but it was started later and I popped my head in - deafening! I have always wanted to see inside a diesel locomotive. We were not allowed further in but you can see why - there's hardly any space and the engine had only just stopped so it would be hot. The black cable bottom right is an earthing cable.

The Deltics were named after their power plant. The Napier Deltic is a triangular (delta shaped) two stroke diesel with 18 cylinders, 36 pistons and three crankshafts developing 1650 horsepower and driving a DC dynamo to feed traction motors in a Co-Co configuration. Each locomotive has two engines.

A total of 22 were built and they were rated at a top speed of 100 mph. They have quite an enthusiast following and this was a well attended event to celebrate 40 years of Deltic preservation.