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9-year-old cousins Rose Brewer, pictured, and Flame Brewer became the world's youngest formation wingwalkers on Wednesday, Aug. 21, 2013, in Cirencester, England.
Tim Ireland/Getty Images - Pool
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The two girls flew on vintage Boeing Stearman biplanes and were inspired to do so by the plight of Eli Crossley, who suffers from Duchenne Muscular Dystrophy.
Matt Cardy/Getty Images
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Rose Brewer, left, and Flame Brewer wingwalk over Rendcomb Airfield.
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Rose Brewer, left, raises her right arm while she and and Flame Brewer wingwalk.
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Eli Crossley's parents have set up the Duchenne Children's Trust to raise money to research a treatment or cure in time to save Eli's life.
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Rose and Flame Brewer hug each other after completing their wingwalk.
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