An electronic flight bag (EFB) is an electronic information management device that helps flight crews perform flight management tasks more easily and efficiently with less paper providing the reference material often found in the pilot's carry-on flight bag, including the flight-crew operating manual, navigational charts, etc. In addition, the EFB can host purpose-built software applications to automate other functions normally conducted by hand, such as take-off performance calculations. The EFB gets its name from the traditional pilot's flight bag, which is typically a heavy (up to or over ) documents bag that pilots carry to the cockpit. An EFB is intended primarily for cockpit/flightdeck or cabin use. For large and turbine aircraft, FAR 91.503 requires the presence of navigational charts on the airplane. If an operator's sole source of navigational chart information is contained on an EFB, the operator must demonstrate the EFB will continue to operate throughout a decompression event, and thereafter, regardless of altitude. History The earliest EFB precursors came from individual pilots from FedEx in the early 1990s who used their personal laptops where are referred as Airport Performance Laptop Computer to carry out aircraft performance calculations on the aircraft (this was a commercial off-the-shelf computer and was considered portable). The first true EFB, designed specifically to replace a pilot's entire kit bag, was patented by Angela Masson as the Electronic Kit Bag (EKB) in 1999. In 2005, the first commercial Class 2 EFB was issued to Avionics Support Group, Inc. with its Constant Friction Mount (cfMount) as part of the EFB. The installation was performed on a Miami Air Boeing B737NG. In 2009, Continental Airlines successfully completed the world’s first flight using Jeppesen Airport Surface Area Moving Map (AMM) showing “own ship” position on a Class 2 Electronic Flight Bag platform. The AMM application uses a high resolution database to dynamically render maps of the airport. As personal computing technology became more compact and powerful, EFBs became capable of storing all the aeronautical charts for the entire world on a single three-pound (1.4 kg) computer, compared to the 80 lb (36 kg) of paper normally required for worldwide paper charts. Using EFBs increases safety and enhances the crews’ access to operating procedures and flight management information, enhance safety by allowing aircrews to calculate aircraft performance for safer departures and arrivals as well as aircraft weight and balance for loading-planning purposes accurately. The Air Force Special Operations