Questions tagged [electric-engine]

Electric engine used as non conventional propulsion system of an aircraft.

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18
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2answers
2k views

What are the advantages of the NASA LEAPTech propeller on wing technology?

NASA has detailed experiments with a new type of parallel array of small electric propellers on the leading edge of the wing technology that they are calling LEAPTech. The press release notes that ...
16
votes
2answers
19k views

What are the advantages and disadvantages of ducted fans in designs such as the Airbus E-Fan?

I have read that it increases thrust and reduces noise. Is there a downside to this? (Image source: Wikipedia)
24
votes
5answers
3k views

Does it make sense towing airplanes to the head of airstrip by external (eg electric) means?

Does it make sense towing airplanes to the head of airstrip by electric means, whether internal or external? Taxiing from the gate to the runway on jet power seems like a waste of fuel. Is it ...
7
votes
1answer
1k views

What license is needed to fly the electric “Volocopter” helicopter?

Here is a video of the aircraft in flight. The Volocopter Looks like it would fly quite differently than a helicopter. Is that true? Does that matter? Is it still a helicopter license that's needed?
13
votes
2answers
1k views

Does the weight of the battery count as “fuel” in a battery powered ultralight?

14 CFR 103 compliant powered aircraft should be less than 254 pounds (excluding fuel). Do the batteries account for fuel in case of electric engine?