The chimney is a tour de force of Swindon design, which turned the Class 2 from an abject LMS failure into the masterpiece we know and love.

Not many people know that Ivatt was all set to fit a Kylechap exhaust to the Class 2 until he was threatened with legal action by Kylie Minogue and Tracey Chapman who had patented the device in the 1930's.

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