122K views · 2.4K reactions | When you step aboard Waverley, you’ll witness her mighty triple expansion steam engine, delivering 2,100 horsepower. The beating heart of Waverley in full view  www.waverleyexcursions.co.uk | Waverley Excursions | Facebook

The mighty Sir William Prescott engine is the world’s largest working triple-expansion steam engine. For over half a century it pumped 19 million gallons of water every day for the people of London. You can see it in action at our next steaming weekend on the 18th & 19th May. #steam #steamengines #massive #massiveengineering #london #hiddenlondon #museum #vintage #heritage #titanic | Kempton Steam Museum

Next weekend: get ready for a firing up of the world’s largest triple-expansion steam engine - the Sir William Prescott. Capable of pumping up to 19 million gallons of drinking water a day, this incredible (and beautiful) feat of engineering kept much of London with clean, safe drinking water from 1929 - including through World War II. Come and witness the marvel next weekend - 22nd & 23rd November 🙌🏻 | Kempton Steam Museum