Including 12 Tutorial flights there are a total of 51 expeditions ranging from Beginner to Intermediate, to Advanced, to Expert. Be prepared to fly a wide variety of aircraft from the Ultralite Trike to the Airbus 321. The creators included the entire stable of FSX aircraft to enhance the challenge. Each has a different instrument panel, so it's a good idea to spend some time flying all the planes. The anticipated flying time for all the flights is about 23 hours. During my efforts, I added 30 hours of flying to to my Logbook to get through all the Missions.