The Air Force increased Boeing's contract for the Joint Direct Attack Munition program by $311.8 million, the Defense Department said April 2. "This ceiling increase provides for JDAM strap-on inertial guidance kits with the capability to receive guidance updates from global positioning systems to increase weapon accuracy for conventional inventory bombs," according to the contract announcement. An Air Force spokeswoman did not answer how many tailkits the March 30 contract funds, or provide a figure for how much the award...