For all the technology and provisions on the current pair of Air Force One planes, they're getting a little old. They were commissioned in 1990, back when George Bush Snr was the sitting President.
Five years from now, their long and distinguished service will be over. Boeing will furnish the USA with another pair of high-tech airliners, costing nearly four billion dollars, and ready for duty by 2024. For security reasons, the current planes will then be dismantled and scrapped.