From paritynews:
American Airlines has announced that it has received the permission from FAA to allow its pilots to carry and use iPads in the cockpit during โall phases of flight.โ
According to the airlines, the tablet will enable pilots to store documentation in electronic form on the iPad which otherwise weighs 15.875 kg (35 pounds) when in printed form. Use of the digital documentation will enable the airlines to save as much as US $1.2 million of fuel each year.
$1.2 million? How much does it take to fly a pound of weight from here to there?