It will be fueled by hydrogen, the most sustainable technology in development today. I have run these numbers many times and there is no way an aircraft is going to fly for any reasonable period of time using hydrogen as a fuel, especially a vertical machine; factor in endurance then just laugh. It just doesn't work, both from a weight and a volumetric perspective; let's not even talk about how hydrogen is produced, sources (probably a steam process on natural gas), energy requirements for chilling and liquefying the gas (pressure tanks would be WAY too heavy for aircraft), and the infrastructure to supply the fuel...... More grabbing headlines and money here, IMHO; buy stock early and then bail when the time is right..... The only hydrogen craft I see flying passengers are balloons, blimps, or dirigibles. |
Originally Posted by Less Hair
(Post 11148543)
Will the noise and the blast when hovering make it acceptable for inner city and metro area flight operations?
|
And here's the latest wet dream from the "gimme some development money" crowd:
https://cimg3.ibsrv.net/gimg/pprune....bf433dce0c.png Not a lot of lifting surface for forward flight, and the wing has big holes in it with drag-inducing fan stuff. The noise from those 2 piddly propellors (nose, tail) must be a real scream. |
I am impressed by all the money they collected but does this new design mean their own original tilt-impeller concept finally did not convince them?
Now it looks more like a toy. Love those tiny front and tail propellers. |
Originally Posted by Less Hair
(Post 11151094)
I am impressed by all the money they collected but does this new design mean their own original tilt-impeller concept finally did not convince them?
Now it looks more like a toy. Love those tiny front and tail propellers. |
All the laurels for Bezos and Musk who fund their own visions. But should the more general financial community get a better technical education to prevent them from all this fantasy financing? How bad will risk capital investments be in other less visible areas, say bio, AI and quantum computing, if even this vapourware gets funded with hundreds of millions of dollars?
We might need stricter rules to prevent money getting extracted from funds on -hopefully not- intentional fake promises. |
Originally Posted by Less Hair
(Post 11151094)
I am impressed by all the money they collected but does this new design mean their own original tilt-impeller concept finally did not convince them?
Now it looks more like a toy. Love those tiny front and tail propellers. Let me provide the missing source: Ascendance revises the design for its long-range hybrid eVTOL (newatlas.com) |
Thanks for the clarification, a bit confusing to distinguish all those phantasies.
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Oh geez, another one:
Sydney Seaplanes orders fleet of electric air taxis to provide escape from Sydney trafficSydney Seaplanes has the advantage of Grandfather Rights on the Rose Bay flying boat base, and they do trips to Palm Beach and other places in Pittwater. Back in the 90s we proposed a floating heliport to use this pre-approved water runway, the pontoons would have been designed for the task, but the EPA and Sydney MSB pounced on it for noise considerations. No landing was allowed within 1000m of the shore, which meant that there was a lot of moving the pontoons between flights, or using water taxis, both impractical. And the rabid Labor voters of Balmain stopped anything west of the bridge. Be interesting to see how they plan on landing at Barangaroo, on the west side of the bridge and almost requiring an approach/departure under the bridge. |
The comments section in this link makes for interesting reading.
Monte-Copter Model 15 Triphibian helicopter - development history, photos, technical data Even though the design still looks quite futuristic 60 years on I doubt the early investors will ever see their money back. |
Lilium employs Andy Strachan as test pilot
The money keeps flowing for development.
The move to Spain to allow higher speed testing. Former RAF and Leonardo helicopters pilot Andrew Strachan steps up as test pilot. https://lilium.com/newsroom-detail/l...ndrew-Strachan Mjb |
Originally Posted by mickjoebill
(Post 11177966)
The money keeps flowing for development.
The move to Spain to allow higher speed testing. Former RAF and Leonardo helicopters pilot Andrew Strachan steps up as test pilot. https://lilium.com/newsroom-detail/l...ndrew-Strachan Mjb |
https://www.ainonline.com/aviation-n...-lilium-evtols
Hmm I wonder if Net Jets actually put any money down , if so they are either longsighted visionaries are complete idiots , Please send your vote on a 20$ bill to . Makemerich@[email protected] |
Ilium says they will be all set, certified, and flying in 2024..... From their website:
Lilium is aiming to certify its eVTOL and start commercial services in 2024. ......the certification of a new aircraft type can take between 5 and 9 years. |
......the certification of a new aircraft type can take between 5 and 9 years. |
An analysis of Lilium by Iceberg, financial and accounting fraud investigators.
https://iceberg-research.com/2022/03...cenbsp-strong/ And a Youtube glowing review. |
Can someone explain what is meant by this statement by Lilium, I tried a search on Helicopter footprint and the only references are to a noise footprint. https://ir.lilium.com/techfaq
'In the Lilium Jet we are using electric ducted fans for propulsion. The advantage of the ducted fans is that they are much smaller than open propellers to lift the same weight of an aircraft. Or in technical terms - they can operate in high disc loads. The consequence of this is that VTOL aircraft using ducted fans need less ground footprint for a given weight and passenger (PAX) capacity of the aircraft. This in turn creates the potential to scale the aircraft to higher PAX and take-off weight for a given size of landing infrastructure' |
Somebody please wake me when its over
|
Originally Posted by sandringham1
(Post 11218885)
Can someone explain what is meant by this statement by Lilium, I tried a search on Helicopter footprint and the only references are to a noise footprint. https://ir.lilium.com/techfaq
'In the Lilium Jet we are using electric ducted fans for propulsion. The advantage of the ducted fans is that they are much smaller than open propellers to lift the same weight of an aircraft. Or in technical terms - they can operate in high disc loads. The consequence of this is that VTOL aircraft using ducted fans need less ground footprint for a given weight and passenger (PAX) capacity of the aircraft. This in turn creates the potential to scale the aircraft to higher PAX and take-off weight for a given size of landing infrastructure' |
Originally Posted by Winemaker
(Post 11195225)
From FAA.gov
Quote: ......the certification of a new aircraft type can take between 5 and 9 years. Mjb |
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