Highland Railway Castle Class

The Highland Railway Castle Class, also called the A Class, was a class of nineteen 4-6-0 express passenger locomotives designed in 1900 by Peter Drummond, the railway's chief mechanical engineer, and named after Scottish castles. Dübs and Company built the first ten until 1902, and the North British Locomotive Company, which absorbed Dübs in 1903, built the rest until 1917. When introduced they were considered the largest 4-6-0 locomotives in Great Britain, and they could take trains of up to 200 tonnes over the Pass of Drumochter without a pilot. They passed to the London, Midland and Scottish Railway in 1923, withdrawals began in 1930, and the last, Dalcross Castle, went in 1947.