The document discusses two important aircraft developed by Boeing: the B707 and the B787. The B707 was Boeing's first aircraft developed in 1958. It was a narrow-body, mid-size plane powered by four turbofan engines. The B707 could carry between 140-189 passengers. The B787 was produced in 2007 and was a long-range, wide-body aircraft powered by twin turbofan engines. Passenger capacity on the B787 varies.