Compare the lowest planes with the Delta
Answers
Delta Air Lines operates 833 commercial aircraft, making it the second largest airline fleet in the world. In the past, Delta purchased or leased older generation aircraft and it flies aircraft for 20–30 years, much longer than most other major airlines. In 2011, however, Delta began a massive fleet-renewal effort with narrow- and wide-body aircraft on order. Delta as a result now flies the second oldest fleet amongst legacy carriers ,with an average fleet age of 14.5 years.
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The Dassault Mirage III was among the most successful delta-winged types
Although long studied, it did not find significant applications until the jet age, when it proved suitable for high-speed subsonic and supersonic flight. At the other end of the speed scale, the Rogallo flexible wing proved a practical design for the hang glider and other ultralight aircraft. The delta wing form has unique aerodynamic characteristics and structural advantages. Many design variations have evolved over the years, with and without additional stabilising surfaces.d supersonic flight. At the other end of the speed scale, the Rogallo flexible wing proved a practical design for the hang glider and other ultralight aircraft. The delta wing form has unique aerodynamic characteristics and structural advantages. Many design variations have evolved over the years, with and without additional stabilising surfaces.