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Forum: Rotorheads

7th Jun 2018, 05:16

Replies: 220

Lilium vertical take off "jet"

Views: 99,703

Posted By riff_raff

Hearing the claims about "redundancy" made in the...

Hearing the claims about "redundancy" made in the video reminds me of the classic line from Princess Bride, “You keep using that word, I do not think it means what you think it means.”

Redundancy...

Forum: Rotorheads

9th Sep 2017, 03:10

Replies: 220

Lilium vertical take off "jet"

Views: 99,703

Posted By riff_raff

That's funny. Except it should be "the dreaded 36...

That's funny. Except it should be "the dreaded 36 motor approach".

Unfortunately, there are quite a few practical issues with this concept that they do not seem to have fully resolved yet.
...

Forum: Rotorheads

23rd Apr 2017, 05:27

Replies: 220

Lilium vertical take off "jet"

Views: 99,703

Posted By riff_raff

That's what also caught my eye. It's unfortunate...

That's what also caught my eye. It's unfortunate that this start-up felt compelled to release video of a vehicle that clearly does not conform to a production configuration, making a very brief...

Forum: Rotorheads

19th Jun 2016, 02:40

Replies: 220

Lilium vertical take off "jet"

Views: 99,703

Posted By riff_raff

Don't know if I believe the claims made by NASA...

Don't know if I believe the claims made by NASA for the benefits of this concept.

"NASA’s aeronautical innovators hope to validate the idea that distributing electric power across a number of...

Forum: Rotorheads

19th May 2016, 07:22

Replies: 220

Lilium vertical take off "jet"

Views: 99,703

Posted By riff_raff

"We are a team of visionary aerospace engineers...

"We are a team of visionary aerospace engineers and product designers from the Technical University of Munich, Germany. Our academic and professional backgrounds span from aeronautics and ...

Forum: Rotorheads

17th May 2016, 01:37

Replies: 220

Lilium vertical take off "jet"

Views: 99,703

Posted By riff_raff

The vertical lift efficiency of all those small...

The vertical lift efficiency of all those small diameter/high speed rotors will be miserable. And it's VTOL operation that drives the size of the electric motors/power electronics. An electric...

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