[tstrimple]

I knew most planes have quite reasonable glide distances and I knew that large commercial airliners were no exception. But from a relative standpoint (GA vs CA) this seemed suspect at first. Intuitively to me the enormous mass differences would make up for the wing surface area differences and the advantage would be to much smaller / lighter planes. On further reflection makes a lot of sense. Fuel is one of the highest costs of commercial airlines. Of course they are going to be hyper-optimizing for this where they can. A 747 being fuel efficient is far more important to bottom lines than a tiny Cessna being fuel efficient and with the relative costs of these aircraft, Boeing can invest far more in research to reduce drag and optimize lift. Aircraft glide ratios certainly seem to confirm this.