The motto at Delta Air Lines is “Keep Climbing” – and that’s exactly what the company is doing on the Fortune 500 list – ascending six spots this year to number sixty-nine. Revenues also went skyward – reaching over 44-billion dollars. What started as a small crop dusting operation in 19-24 has grown into one of the world’s largest airlines. Each year, Delta flies nearly 200-million passengers to more than 3-hundred destinations around the globe.