description Beatrice Shilling Overview
Beatrice Shilling (1909-1990) was a British aeronautical and mechanical engineer who worked at the Royal Aircraft Establishment in Farnborough. During the Second World War, she developed the RAE restrictor, a small device that limited fuel flow in Rolls-Royce Merlin carburetors and reduced engine flooding during negative-g maneuvers. The modification was fitted to aircraft such as the Spitfire and Hurricane, and Shilling later worked on projects including the Blue Streak missile.
help Beatrice Shilling FAQ
What did Beatrice Shilling invent for Royal Air Force fighters?
In 1940, she invented a carburetor restrictor that prevented fighter engines from stalling during certain maneuvers. The device became known as Miss Shilling's orifice.
Which aircraft benefited from Beatrice Shilling's carburetor restrictor?
The device helped British fighters using Rolls-Royce Merlin engines, including the Supermarine Spitfire and Hawker Hurricane. It addressed engine cutout during negative-g maneuvers.
What problem did the restrictor solve?
Before the modification, fuel movement in the carburetor could make an engine lose power or stop during a sudden maneuver. The restrictor controlled the fuel flow and helped keep the engine running.
Where did Beatrice Shilling work as an engineer?
She worked at the Royal Aircraft Establishment at Farnborough. Her 1940 carburetor modification became one of the best-known examples of practical engineering supporting RAF combat aircraft.
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