Aircraft Performance Group, Inc (APG) is the leading global provider of flight operations software solutions to the Aerospace Industry. APG provides flight planning, runway analysis and weight and balance to the aviation industry. Our services include: APG Enterprise Solutions iPreFlight Enterprise provides greater efficiency, automation, and data management capabilities for those organizations with larger fleets. The iPreFlight Enterprise version integrates with your in-house systems via APGs software portal to receive automatically generated Flight Books for each flight. This software is designed to take advantage of flight-related information already resident in your internal support applications and programs such as flight numbers, aircraft type, city pairs, crew assignments, planned passengers, and fuel loads. iPreFlight (Available on iPad) iPreFlight is the ultimate solution for operators who want to access the largest toolkit. Leveraging the computing power of the iPad, APGs iPreFlight app allows operators to achieve accurate payload estimates without the need for Internet connectivity. Use the Maximum Payload Estimator (MPE) tool to determine maximum payloads given a combination of specific temperatures from the departure and arrival airports.