Hello David, AIRLINE requires around 300mb HD space, we recommend P3 or greater and your monitor must be set to display 1024 by 768. Scheduling in v4.3 (the current release) is done by selecting city pairs from drop down lists and then departure times and frequency. The System calculates in Zulu time and returns flight times for you. You can select the turn around times, it checks for max number of movements at the airport in a given hour and then allows you to allocate the segment. Please let me know if there is anything else specific to AIRLINE I can help you with. Frank www.airlinesimulation.com > Has anybody played Airline Simulation by efzed? If so, how was it? A > couple of questions: When entering a route, does the user have to > calculate the enroute time or is the time calculated by the program? > What are the system requirements? (I couldn't find this information on > their web page) > > Thanks in advance, > David R >