A Sydney businessman is going on a 12-day flying marathon to raise money for cystic fibrosis — the life-threatening disease of the respiratory and digestive systems that affects his 13-year-old daughter. In early November, Matthias Fuchs will commence his 200-hour journey in the sky, stopping on four continents with six passages over the Pacific Ocean and four over the Indian Ocean. He will only leave the airplanes’ cabins for short stopovers within terminal buildings.