What could replace airplanes?

The best alternative to aeroplanes when it comes to speed is high-speed rail – trains with average speeds over around 200km (124 miles) per hour. It's the only way we can move a great number of people at high speeds over large distances at a reasonable price, says Gössling.



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Some companies are looking at jet aircraft powered by electricity. For example, Wright Electric is working on a 100-seat fully-electric regional jet that could take off starting in 2026. The Wright Spirit is a conversion of the BAe 146 regional jet, destined for one-hour flights.

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In 2050, airports will be models of connected and integrated travel. They will be community hubs for city and regional links, and mass transit of many kinds, including high-speed rail, autonomous vehicles, hyperloop, air taxis, and so on.

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Hyperloops, supersonic jets and electric aircraft: Here's what transport could look like by 2050. E-bikes, scooters and now even cargo bikes are also helping travelers, commuters, and delivery drivers cover shorter distances in urban areas without needing a fossil fuel-powered vehicle.

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The first self-flying cargo planes will enter civil aviation, sharing the skies with piloted airplanes. Small, self-flying planes will begin carrying passengers on short, regional flights. Larger passenger jets will begin operating without a pilot on the flight.

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For the shortest trip, driving is slightly more economical than flying. But for the longer cross-country trip, flying is far cheaper. And keep in mind that this only considers solo drivers. Families or friends traveling in one vehicle can save money by driving, even on longer routes.

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The bottom line is that Bruno Nouzille thinks there will be pilots in the cockpit for a long time to come. But with flight crews working with increasingly complex automated systems, there will need to be significant changes in how humans and systems interact.

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According to Drela, today's airplane builders actually favor a smaller, lighter, and therefore slower aircraft that peaks its fuel efficiency at slower speeds. (Cars also become more efficient at slower speeds on highways.)

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With proper maintenance and repair, an aircraft can last longer than its estimated lifespan. On average, commercial aircraft can last between 20 to 30 years. However, airlines often retire their planes earlier due to economic and operational reasons.

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Fixed-Wing Airplanes This pressurized, twin turboprop aircraft is capable of instrument flight (IFR) at a speed of 265 nautical miles per hour (knots), and is used for flights of up to approximately 800 miles round trip distance.

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