CLICK). Flame's older brother Tiger became the youngest solo wing walker in 2009 at the age of 8 (CLICK). Their grandfather Vic Norman owns and leads Breitling Wingwalkers. The top photo shows the girls on his Boeing Stearman biplanes. The cousins had been pestering him to let them perform the stunt to help their friend six-year-old Eli Crossley, who suffers from the fatal genetic disorder Duchenne Muscular Dystrophy. Sufferers are severely disabled and die young. The Duchenne Children's Trust raises money to find a cure (CLICK).