Hot bulb engine, exhaust pipe

Sound from exhaust pipe recorded outside factory.
This large diesel-driven hot bulb engine was built and installed at the Pythagoras-Drott mechanical works in 1932. It has been used to drive a power generator, which still works and is able to produce electricity for the factory. In this recording, the generator is not running, so what is heard is mainly sounds of the engine.
Although it is sizeab…