NATIONAL PHYSICAL LABORATORY (C) CROWN COPYRIGHT / SCIENCE PHOTO LIBRARY NATIONAL PHYSICAL LABORATORY (C) CROWN COPYRIGHT / SCIENCE PHOTO LIBRARY
Supermarine Spitfire. This model of the Supermarine Spitfire plane has been inverted and suspended inside a wind tunnel for aerodynamic testing. It has been fitted with experimental high-altitude wings that have extended wing tips designed to give a greater service ceiling (altitude above which a plane cannot climb faster than a given rate). The high-altitude wing was used extensively on later photo-reconnaissance versions of the Spitfire. Photographed at the National Physical Laboratory, Teddington, UK, in 1940.
Model release not required. Property release not required.