[kach22i]

Originally Posted by All Darc

This is not the news I saw a couple years ago, but it's also interestinh :

https://phys.org/news/2015-04-world-...-aircraft.html

5KW por kg... impressive. Industry have less than 1KW per KG in general.

If we compare to bicycle electric motor, heavy and low power.

From the link:

Since the new motor delivers its record-setting performance at rotational speeds of just 2,500 revolutions per minute, it can drive propellers directly, without the use of a transmission. "This innovation will make it possible to build series hybrid-electric aircraft with four or more seats," said Frank Anton, Head of eAircraft at Siemens Corporate Technology, the company's central research unit.

Read more at: https://phys.org/news/2015-04-world-...craft.html#jCp

Thanks for posting this.