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The Unapproachable Norton

Beatrice Shilling, Brooklands, 1935 Manx Norton M30

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Tilly Shilling on her 30M Manx Norton

Beatrice (Tilly) Shilling was an accomplished rider who fettled her own machines and is best remembered in the motorcycle world as one of only three women to achieve the magic ton at Brooklands.

An aeronautical engineer, she also has a place in aviation history as the inventor of a device which saved many lives. Fitted to Spitfires and Hurricanes, the invention prevented the severe flooding to which Merlin engines were prone during negative G manoeuvres, making the smiting of the nimble Messerschmitt problematical during the Battle of Britain. Officially named the R.A.E. restrictor, her solution was celebrated by the RAF lads as Tilly's Orifice.