Ideal for both domestic and international preflight planning and in-flight progress tracking. The front side of the flight planner sheets provide for input of preflight information such as planned course, altitude, predicted winds, en route checkpoints, compass headings, estimated times, fuel, navaid frequencies, and terminal information—field elevation, runway information, and communication frequencies.The backside of the sheets include a preflight pilot checklist, weight and balance computation table, PIREP guidance, and the flight plan format used by the International Civil Aviation Organization (ICAO). Flight plans contain specific information relating to the proposed flight of an aircraft and controllers use them to provide air traffic services. Today pilots file flight plans in the U.S. under either the domestic or ICAO format. The use of one format will simplify the process and align U.S. flight plans with ICAO standards.