redletterdave writes: "Following the precedent set by commercial airliners in December, the U.S. Air Forceplans to buyup to 18,000 iPads for its Air Mobility Command (AMC), replacing heavy flight bags with light and efficient Apple iPad 2s for the crews that fly cargo aircrafts. The devices will reportedly be used by the crews on the C-5 Galaxy and C-17 Globemaster aircrafts. There are several benefits to using electronic flight bags instead of physical versions. For one, the iPad can instantly update charts electronically, while the AMC would require flying charts get reprinted every 28 days to stay up-to-date. By cutting publication printing and distribution costs, and exchanging 70 pounds of paper for a 1.3-pound iPad, the Air Force can save some serious cash, including more than $1.2 million worth of fuel per year."