Most airlines in recent years permanently grounded their fleets of Boeing 747-200 jumbo jets as fuel prices skyrocketed because the aircraft burns much more fuel than other freighters such as the 747-400. And then there is Kalitta Air. Kalitta Air is an all-cargo carrier, based at the Willow Run Airport in Michigan, that does a lot of transport for the U.S. military and operates charter flights for shippers. It was founded by Conrad Kalitta in 2000. &n...