- May 13, 2007
- Reaction score
Why is all the wing area right at the back?
Here’s Lilium’s SPAC investors pack;-
And here’s a pretty accurate assessment of it;-
Lilium is a startup founded 2015 that plans to launch UAM (Urban Air Mobility) services based on their proprietary eVTOL vehicles (electric Vertical Take Off and Landing). So far, Lilium obtained $376 million through 5 private funding rounds.www.linkedin.com
This has the potential to kill off the whole eVTOL business.
(The sixteen seater seems to have about the same wing area as the seven, yeah right as if that’ll fly)
plus a planned PIPE (Private Investment in Public Equity) investment
- Organs transplant air cargo operations: rare occurrences, very urgent need, minimally constrained airframe in term of schedule and routing, absolute safe delivery of payload needed...
Street legal is kind of overrated. I'd think the ability to use existing parking infrastructure is a pretty important feature for widespread flexible utilization. This would be a concern after all the legal and safety problems gets worked out though, so is still pretty far in the future.Chances of this (or any other roadable air vehicle I've seen) being ruled street legal seem like slim to none considering modern pedestrian impact requirements etc. And it's worse still for eVTOLs which can't afford the weight for crumple zones etc.Another horror:
Spoiler: it has a hefty price tag. But then, the Aska would be a remarkable vehicle: a spacious, four-seat electric SUV with the ability to stop and fold out a set of wings and props to transform into an electric VTOL/STOL aircraft.newatlas.com
When will we have breathalyzers mandatory for drafting tables?
Alternatively, the regulatory regime just shuts this "frivolous and genocide" technology (clearly the solution to transport problems is more trainnnnns) down and it never reach scale for effective technological development while a set of social forces locks that status quo in place. Just look at the cost curve for General Aviation.To be optimistic, I suspect that this form of transportation will follow the same path as others. At first it will be doubted (few buggy whip makers drastically changed their line of work when the first automobiles sputtered around the dirt roads), then the affluent will accept it. Over time as the infrastructure is developed, more will gain access and the technology will be driven by the market.
Nice to see something new from Volo... However, I doubt that's is the best solution in regards of lift+cruise configurations.Volocopter has officially unveiled its new winged eVTOL air taxi concept, the four-seat VoloConnect, for longer-range urban air mobility missions.evtol.com
I like that they are finally starting work on a successor to their current model.
Found a pic that shows the fan units. 36 of them are installed on the aircraft.
China's most prominent eVTOL manufacturer has announced a new long-range "lift and cruise" aircraft for inter-city travel. The EHang VT-30 will take two passengers up to 300 km (186 miles) under completely autonomous control.newatlas.com
looks ok, but a range of 300km is, from my point of view a little bit too much to be believable.
IMHO: the big problem with the low range is that you burn out the battery very fast with 10-20 cycles per dayConfiguration studies have shown that for ultra-short ranges the multicopter might be okay. YMMV, but I'm talking 20-30 km give or take. Incidentally, this is why the configuration is still viable for intra-urban package delivery. Beyond that, having a wing makes the vehicle efficient enough that it pays for its weight. At longer ranges it's not even close.
The key here is range, in this case short. I'm not advocating for multicopters, but you can find technical papers from several independent sources that will confirm that at least from a vehicle point of view (forget about the larger operational considerations), on very short missions it pays to not lug a wing around, live with the lower resulting L/D, and make up for it by having a larger battery that you can afford because you saved weight on the wing.A winged eVTOL can preform the same mission as a multicopter, but faster, using less power and do more cycles per recharge. So why would anyone buy a multicopter?
It’s a bit like comparing a unicycle to a bicycle. Nobody’s ever made a commercially successful company out of a unicycle that’s anywhere close to those in the bicycle world.
but you can find technical papers from several independent sources that will confirm that at least from a vehicle point of view (forget about the larger operational considerations), on very short missions it pays to not lug a wing around,
Excellent video. If i were cynical i would say that the sound measurement was probably for the empty vehicle, with just one operator on board, so 800 lbs below takeoff gross...BUT, it's frankly very impressive no matter which way you look at it. They have demonstrated hover and transition with a configuration that is unlikely to have to be changed to a different production standard, which puts them ahead of just about anyone else. The only thing we don't know about is their actual range with the batteries they've got.View: https://www.youtube.com/watch?v=F49BuJsUH-w&list=LL&index=2&ab_channel=DeepLookDeepLookVerified
Joby has released a new video which examines their aircraft more closely. Definitely worth a look. We finally get to see the cockpit layout. I also wonder about the maintenance costs of servicing an aircraft with 6 separate engines. Also, if the grand plan is to have thousands of Evtol's in service, where will they find all the A&P mechanics and pilots ? Wasn't the industry facing a shortage of skilled workers before the pandemic hit ? By the time this aircraft enters service the industry will have largely recovered and will be facing the skilled worker problem once again.
Edit: They also have a detailed PDF presentation on their plan to certification. It is linked in the article below.
Joby Aviation provided more transparency into its eVTOL operations, production and certification timelines at an Analyst Day on June 3.evtol.com