some other concepts:
NASA Solar Flapper
The NASA Solar Flapper is an unconventional concept for a plane that would use solar power and flapping of the aircraft's "wings" to propel itself up and forward. One blog writes, "This flight vehicle would integrate airfoil, propulsion, energy production, energy storage, and control into one seamless design with no conventional mechanical moving parts."
Japan Airlines Concept
The above plane is a concept designed for Japan Airlines by industrial designer Luigi Colani.
Airbus Concept
Unveiled in mid-July, the creators of this Airbus concept plane say it could potentially become the standard for air-travel by the year 2050. The plane features ultra long and slim wings, a "U" shaped tail, and a more "intelligent" body to boost performance and efficiency.
The interior of the plane will also be revolutionary and environmentally friendly, according an Airbus press release:
In ‘The Future by Airbus’ the company talks of morphing seats made from ecological, self-cleaning materials, which change shape for a snug fit; walls that become see-through at the touch of a button, affording 360 degree views of the world below; and holographic projections of virtual decors, allowing travelers to transform their private cabin into an office, bedroom or Zen garden!
MIT Concept Plane
A team of engineers at MIT have been awarded a $2 million contract by NASA to design a quieter and more efficient aircraft that could be released as soon as 2030. According to Dvice, "this squashed wide-body design is the team's preliminary effort."
Luxury Blimp
The Aeroscraft ML866 boasts a vast 5,000 square feet of interior room for the ultimate luxury experience. This "flying yacht" reaches a top speed of 120 knots and has vertical takeoff and landing capabilities.
The MIT No Noise Aircraft
The SAX-40 is a joint project between engineers at The Massachusetts Institute of Technology, and Cambridge University in England. This aircraft seats 215 passengers and emits just 63 decibels during takeoff, compared to a whopping 150 decibels by a conventional airliner. The goal, notes Popular Science, is to build an aircraft that is "inaudible outside the airport."
The Flying Saucer
This futuristic flying machine looks like it was taken right out of a sci-fi movie. However, the saucer is not just space-age, but eco-friendly too. It was designed by the CleanEra project, led by Etnel Straatsma of Delft University of Technology in The Netherlands. CleanEra's aim is to create an environmentally friendly plane that "releases 50 percent less carbon dioxide per passenger-mile than current airliners," LiveScience writes. "The project's "greenliner"—depicted in design illustrations as a flying saucer—would also reduce other pollutants and noise, in line with recommendations from the European Aerospace Commission, ACARE."
Icon A5
The Icon A5, called the "ultimate joyride," can take off and land on water or dry land, and when its 32-foot wings are folded, it can fit comfortably into a large garage. Its creator hopes to make "flying small airplanes the luxury motor sport of the 21st century," and designed the Icon A5, which has an interior similar to that of a sports car, to have "sex appeal." The plane is priced at around $140,000.