With the Rolls-Royce Centennial app you can join the celebration of 100 years of aviation in Indianapolis and learn something new about the key events and engines that have shaped Rolls-Royce over the past century. Features include: A timeline marking important events over the past century. A catalog with specs of some of the most important engines Rolls-Royce has made. A listing of important airframes powered by Rolls-Royce engines made in Indianapolis.