ELi5 | SM on Instagram: "The Spitfire’s wing flaps use a simple and clever mechanism to help the aircraft land safely at slower speeds. When it’s time to land, the pilot moves a switch in the cockpit, which sends air pressure through pipes to piston-like devices attached to the flaps. This air pressure pushes the flaps down, making them stick out below the wing. The Spitfire’s flaps are only fully open or fully closed. There aren’t any in-between positions. By dropping the flaps, the shape of th

'The Great British Spitfire Restoration' on C4 — everything you need to know