Understanding Fuel Efficiency in Aviation

The video discusses the high fuel consumption of airplanes, highlighting that a Boeing 747 uses about one gallon of fuel per second. It introduces the Green Flight Challenge, organized by NASA, Google, and the Comparative Aircraft Flight Efficiency Foundation, which aims to improve aircraft efficiency. The challenge required aircraft to travel 200 miles in under two hours using less than one gallon of fuel per occupant or its electric equivalent. The Pipistrel Taurus G4 won the challenge, achieving remarkable efficiency with an electric aircraft. NASA awarded them $1.35 million to further develop electric planes.

What is the approximate fuel consumption of a Boeing 747 during a 10-hour flight?

• 72,000 gallons

• 50,000 gallons

• 36,000 gallons

• 18,000 gallons

Which organizations collaborated to improve aircraft fuel efficiency?

• NASA, the Comparative Aircraft Flight Efficiency Foundation, and Google

• Google, Boeing, and Airbus

• NASA, Google, and Boeing

• Airbus, NASA, and the Comparative Aircraft Flight Efficiency Foundation

What was one of the requirements for the aircraft in the Green Flight Challenge?

• Carry at least 10 passengers

• Use less than one gallon of fuel per occupant

• Travel 500 miles in less than 3 hours

• Achieve a speed of 200 miles per hour

How many finalists used electricity in the 2011 Green Flight Challenge?

• None

• Three

• Two

• One

What was the top speed achieved by the Pipistrel Taurus G4?

• 127 miles per hour

• 97 miles per hour

• 107 miles per hour

• 117 miles per hour

How efficient was the Pipistrel Taurus G4 compared to a Boeing 747?

• Twice as efficient

• Four times as efficient

• Three times as efficient

• Five times as efficient

What prize did NASA award to the creators of the Pipistrel Taurus G4?

• $1 million

• $2 million

• $500,000

• $1.35 million

What is the main advantage of the Pipistrel Taurus G4 over traditional aircraft?

• Larger size

• Higher speed

• Greater fuel efficiency per passenger

• Lower production cost

What is the primary energy source for the Pipistrel Taurus G4?

• Gasoline

• Electricity

• Diesel

• Biofuel

What is the future goal for aircraft development as suggested in the conclusion?

• Increase aircraft size

• Develop faster planes

• Create more electric planes

• Reduce ticket prices