Interesting Delta facts....
If Delta can save one cent ($.01) on their fuel cost per gallon, they will save over 8 million dollars PER DAY!!!
A jet with one engine idling on the runway for 30 minutes burns over 600 pounds of fuel. with all four engines on idle, it will burn over a ton of fuel in 30 minutes.
The treads on the tires are so thick, the grooves on the tire design is over 12 inches deep.
the plane has to dump over 600,000 pounds of fuel if it has to make an emergency landing, because the plane - while can taxi and lift off - can not land with that much weight.
Learned all this on my flight last night while it was delayed.