The Rolls-Royce Trent 800 Pilot Guide app is an interactive reference tool for the classic engine choice for the Boeing 777. The app brings together educational material and real engine characteristic data to allow an airline pilot to understand the engine that delivers the power for the Boeing 777 aircraft. This is complemented with the latest Rolls-Royce operational recommendations for the best use of the Trent 800 and the latest understanding on environmental factors that may need to be considered when flying with the engine.