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(Music)

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Jack Langelaan, Team Pipistrel: The dream, I guess, of everyone for a long time

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has been to have a flying car.

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And if we can have electric flying cars, that would be wonderful.

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Sam Ortega, NASA Centennial Challenges: It really is the dawn of a new era for aviation.

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It's general aviation, finally with an electric aircraft.

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Erik Lindbergh, LEAP: They'll be cheap, simple, easy to fly, renewable energies, quiet.

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That's what we need to revitalize the aviation industry.

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Dr. Larry Cooper, NASA Centennial Challenges: This challenge is for a total of $1.65 million.

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Eric Raymond, Team eGenius: We'll use it for further aircraft development.

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Just bigger and better, faster.  Onward and upward.

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(Sound of propeller engine and wind rushing by)

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Sam Ortega: We want to fly something or build something that is just as efficient as a Prius.

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Pat Anderson, Embry-Riddle Aeronautical University: This is our more cosmic entrance:

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a hybrid gas-electric battery-powered airplane, which is the first of its kind.

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Lori Costello, Embry-Riddle Aeronautical University: Aviation is definitely one of the most

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pollutant transportation industries out there, so trying to move towards a greener

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and healthier mode of propulsion is definitely where we're all headed.

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Sam Ortega: They all have to fly an average of 100 miles per hour or greater.

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Eric Raymond: They require a 200 miles per gallon, per seat.

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So, with a 2-seater, we have to average 100 miles per gallon at 100 miles per hour

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and there's no gasoline engine that can do that.

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Sam Ortega: The other thing is sound.  So, you want to be able to fly these at 78 decibels,

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basically the sound of a dishwasher measured at 250 feet.

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David "Batman" Morss, Team Pipistrel: Two years ago, they came out with a proposal for this,

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I laughed, because it was impossible.  It just couldn't be done.

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And yet, in two years, there's at least two airplanes here that I know of, that are electric,

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that I think can meet the criteria.  It's happening and it's happening exponentially.

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Robin Reid, Team Pipistrel: As the batteries get better, these airplanes are going to get better.