Questions tagged [e-fan]
The e-fan tag has no usage guidance.
6
questions
2
votes
2answers
215 views
Is it possible to build 'Contra-rotating' EDF?
Is it possible to design an EDF (Electric Ducted Fan), with two counterrotating blades, that will have more thrust than two separate EDFs with the same blades?
1
vote
0answers
106 views
What are the effective span and lifting properties of a circular wing?
Today I read an article on FlightGlobal about the Bell air taxi demonstrator. It includes some paraphrased quotes from the Bell VP of innovation, Scott Drennan, among which the following stood out:
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1
vote
1answer
1k views
What would be the best fan duct design to achieve maximum thrust?
I have a few brushless motors and I am trying to get the best thrust out of each motor. I am busy doing some research but can't get a clear answer. What would be the best fan duct design to achieve ...
1
vote
1answer
88 views
How do I determine the maximum thrust that a Tesla powertrain (P100D for example) could produce if attached to a single propeller?
I am theorizing a drone helicopter from a tesla powertrain (P100D).
Lets assume the system is theoretically maximized with an optimum propeller (this is what I am currently stuck on). How much thrust ...
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)
7
votes
2answers
1k views
What is the weight of the batteries on the e-Fan?
Airbus' own (early) page with technical data about the e-Fan provides some information about the batteries.
It can, for instance, be calculated that they hold approx. 19kWh of energy if you accept a ...
