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Silent Green Flying Wings

Future Flight Is Looking Cool

SAX40-clouds2The passenger aircraft of the future will be fuel-efficient, and virtually silent, a plane that will cut through the air with practically no sound bothering those below, thanks to its unique shape and design features to limit engine noise. In addition to improving the lives of people living and working along airport approach routes, the new procedure reduces aircraft engine emissions and fuel consumption.

The Silent Aircraft Initiative, a joint project between researchers at Cambridge, Mass. based MIT, Cambridge University in England, and in co-operation with NASA, is working on a plane so quiet that it can’t really be heard beyond the airport. In collaboration with a team of aerospace industry and academia like engine manufacturer Rolls-Royce, aircraft maker Boeing Co., and more than 30 aviation companies from around the world. The research focused on producing a conceptual design for a fuel-efficient mid-range commercial transport that is inaudible outside of a typical airport boundary. The group has achieved its goal of producing a credible conceptual design that meets the objectives of a functionally silent and fuel-efficient aircraft. Dubbed the SAX-40, this 215- passenger commercial transport concept will resemble a hybrid wing/body approach, widely known as the blended wing/body (BWB).

The conceptual design addresses both the engines and the structure, or airframe, of a plane. Half of the noise from a landing plane comes from the airframe, so a smooth “blended wing” design is aimed at reducing noise caused by turbulent airflow. The SAX-40’s tail-less aerofoil body provides sufficient extra lift to allow the designers to get rid of the conventional tail and flaps, both sources of irritating decibels. Landing gear is flaired, once again cutting airflow-induced racket.

SAX40-runwayThe design is more fuel-efficient. In a typical flight, the proposed plane, which is designed to carry 215 passengers 5,000 nautical miles, achieving 124 passenger-miles per gallon, almost 25 percent more than current aircraft, the Toyota Prius hybrid car carrying two passengers achieves 120 passenger-miles per gallon. The engines utilizes “variable area exhaust” nozzles, allowing the aircraft to close the nozzles at cruise for increased fuel efficiency, and a vectored thrust capability to make sure the power’s pointing in the most efficient direction for take-off and landing. Burning 35 percent less fuel than anything currently in the air.

Each engine has a single core, driving three high capacity low speed fans. This distributed propulsion system is designed to ingest the boundary layer on the aircraft center body which reduces the fuel burn. The multiple small fan design is easier to embed in the airframe, and leads to reduced weight and drag. It also enhances boundary layer ingestion, thereby improving fuel efficiency, and the low fan tip speeds lead to low noise.

Since air travel is forecast to double by 2026, the project aims to develop aircraft by 2030, with the prototype being ready by 2025. The cost of the project is around 4.08 million USD ( £ 2.5m). The actual cost through completion will be in the billions. But worth it.

Oh by the way, the aircraft would use video cameras and view screens to allow passengers to look outside without having to use windows.

As the green future unfolds ……..

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No Responses to “Silent Green Flying Wings”

  1. Wilson Pon Says:

    Linda, have you ever heard about the World’s first space airport? There’s rumor said that New Mexico would be the first state in U.S.A. who building a spectacular space airport! In this case, this silent green flying wings would be the perfect match for the new space airport.

  2. Says:

    This is an exciting development. I feel so fortunate to be living in this day and age.

    Where in New Mexico? In Roswell? Haha… 😀
    .-=´s last blog ..Thankful Thursday =-.

  3. Spencer @ Build A Wind Turbine Says:

    Hi Linda, the aircraft looks a great idea but is a long way off, with the construction costs and technical hitches I could see a few more years being added before it is in general circulation.
    .-= Spencer @ Build A Wind Turbine´s last blog ..Solar Hot Water Heating =-.

  4. ConnieFoggles Says:

    Now that is amazing. I hope I’m able to see this and experience it too.
    .-= ConnieFoggles´s last blog ..Unilever Beauty Tips And Free Samples =-.

  5. Isis @ Says:

    I hope it will be in use within the next 20 years. We need more fuel-efficient modes of transportation. 😀
    .-= Isis @´s last blog ..Most of my stories are still UNWRITTEN =-.

  6. Diane Scott Says:

    Great idea! It sure doesn’t look like it can hold 215 people though… does it?!
    .-= Diane Scott´s last blog ..Unique Business Opportunity Grant Revives Face To Face Meetings =-.

  7. Linda Says:

    Hi Diane … It looks to be very spacey inside but even if it flew 150 folks, it would definitely be aok with me.

  8. Sunset Classics Says:

    Really an amazing looking design – and about time someone is making advances in green aviation. There are some great looking prototypes being worked on, I recently saw Popular Science featuring a few exciting designs including a solar plane that is completely powered by the sun – it only flies 45mph though. 🙂 But still one would think that kind of technology would eventually cross over into other plane designs.
    .-= Sunset Classics´s last blog ..Coen Brothers Dodge Coronet for Sale =-.

  9. Linda Says:

    Hi Sunset Classics … LOL! 45 mph would maybe get it running down the runway! That is a great start and I am sure we will lots more!

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