They may not be pretty but they still do the job. B-52H Stratofortress bombers fly in formation during Bomber Task Force Europe in October over the Baltic Sea. The Air Force still has 75 B-52Hs in its inventory, at an average age of nearly 58, and plans call for keeping them flying for decades longer. A competition is now underway to re-engine the planes in order to dramatically increase fuel efficiency, ease maintenance, and extend the lives of this workhorse of the bomber fleet.