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Forum: Rotorheads

24th May 2023, 03:56

Replies: 220

Lilium vertical take off "jet"

Views: 99,700

Posted By Winemaker

Though we're not sure what you were trying to...

Though we're not sure what you were trying to imply, you are certainly welcome to post your comment. On topic, watched the video and it'll never fly; it's unbelievable people invested in its company.

Forum: Rotorheads

19th Jun 2022, 23:06

Replies: 220

Lilium vertical take off "jet"

Views: 99,700

Posted By Winemaker

Endurance seems, to me, to be the big problem....

Endurance seems, to me, to be the big problem. With the much bigger power demand with a vertical landing and take off, a go-around would see to be a real deal breaker for certification. As for the...

Forum: Rotorheads

5th Mar 2022, 16:51

Replies: 220

Lilium vertical take off "jet"

Views: 99,700

Posted By Winemaker

Ilium says they will be all set, certified, and...

Ilium says they will be all set, certified, and flying in 2024..... From their website:

From FAA.gov

Forum: Rotorheads

1st Feb 2022, 14:25

Replies: 220

Lilium vertical take off "jet"

Views: 99,700

Posted By Winemaker

Looks like they are only flying RC models; that...

Looks like they are only flying RC models; that company website is absolutely devoid of actual hard information.

Forum: Rotorheads

4th Dec 2021, 03:43

Replies: 220

Lilium vertical take off "jet"

Views: 99,700

Posted By Winemaker

Pretty funny. But you have to understand they...

Pretty funny. But you have to understand they are turning a 50,000 rpm ± so the craft is supersonic....... I wish I could come up with one of these schemes for instant wealth.

Forum: Rotorheads

30th Nov 2021, 01:32

Replies: 220

Lilium vertical take off "jet"

Views: 99,700

Posted By Winemaker

Oh come on. Run some basic numbers re fuel energy...

Oh come on. Run some basic numbers re fuel energy density of hydrogen vs liquid hydrocarbons like petrol then do some basic calculations re volumes and storage (liquid hydrogen and/or compressed gas)...

Forum: Rotorheads

31st Oct 2021, 00:21

Replies: 220

Lilium vertical take off "jet"

Views: 99,700

Posted By Winemaker

Fair enough, but where is it mentioned? I've...

Fair enough, but where is it mentioned? I've looked for FAA fuel requirements for powered lift and failed to find any. Do you have a link?

Forum: Rotorheads

30th Oct 2021, 14:30

Replies: 220

Lilium vertical take off "jet"

Views: 99,700

Posted By Winemaker

I'm still curious how they intend to meet certain...

I'm still curious how they intend to meet certain FAA rules......

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