Beatrice Shilling

Beatrice Shilling
c. 1930s
Born(1909-03-08)8 March 1909
Waterlooville, Hampshire, England
Died18 November 1990(1990-11-18) (aged 81)
Alma materVictoria University of Manchester
OccupationAeronautical engineer
Years active1930s-1969
EmployerRoyal Aircraft Establishment
OrganizationWomen's Engineering Society
Known for
SpouseGeorge Naylor
AwardsOfficer of the Order of the British Empire (1949); British Motorcycle Racing Club (Gold Star) (1934); Honorary doctorate University of Surrey

Beatrice Shilling OBE (known as Tilly) (8 March 1909 – 18 November 1990) was an English aeronautical engineer, motorcycle racer and sports car racer. In 1949, Shilling was made an Officer of the Order of the British Empire.

During the Second World War Shilling designed the RAE Restrictor (which became known as Miss Shilling's orifice), a simple device that overcame the problem of the Rolls-Royce Merlin aeroplane engines losing power during negative-g manoeuvres. After the war, Shilling also worked on the Blue Streak missile, researched the effect of a wet runway upon braking, and helped design and build a bobsled for the Royal Air Force's Olympic team.

As a motorcycle racer, Shilling is one of only three women who have received the British Motorcycle Racing Club Gold Star for having lapped the Brooklands circuit at over 100 miles per hour (160 km/h) on a motorcycle. In sports car racing, she scored several podium finishes at the Goodwood Circuit Members' Meetings.