81–90 of 95 posts
Why does it look like a toy when it flies? There’s something about he way it moves when it changes direction or lands that makes it not look as big as it should.
That was a video of a sub-scale prototype, they have newer videos of a larger one at http://www.lilium.com
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Couldn't the parking be organized by just putting roboticized "air garages" to the top of sky scrapers? Carriers operate a fleet of aircraft in a very constrained space. With purely VTOL craft there is no need for that to be horizontal, it all could be put to vertical. So you would have 1. Landing bay (helicopter pad or an enclosed bay).For enclosed bays those could be stacked on top of one another. 2. Robotic parkin…
I think you'll find building sufficient parking on top of skyscrapers will run into cost and weight issues. Cost, because much parking is currently on street or in dedicated low cost parking structures. Weight... For obvious reasons.
Not remodeling. Redesigning. It's very straightforward to move and redesign urban centers. Lot of countries do it all the time. The proble.s are not related to human nature or engineering, but to purely finances.
When they led with “100x quieter than a helicopter,” my first reaction was a skeptical “well sure, decibels are logarithmic!” But 40dB from 600ft away is impressive, and within the range of what I would consider acceptable for residential flyover (though not takeoff and landing) in a medium-density area.
100x quieter than a helicopter, with a few thousand people using them, is louder than a helicopter. A glance at any urban interstate would suggest that mass adoption would be loud...
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Osprey is more of a true biaxial helicopter first, and a convertoplane second. V22 have 2 lateral DOF in which it can move without moving COM relative to point of aerodynamic force, and without changing its aerodynamic cross-section, so you don't get positive feedback to change of orientation in wind gusts. This thing cannot do that as far as a glancing look can tell. I am not an aeronautic engineer, just a motoglide…
I checked on LinkedIn, the company has guys with PhD's in aerospace engineering working for them. Do you want to inform of this shortcoming?
Analogously, if the company is pilled to the brim with ex-Boeing engineers, but don't seem to recognise an obvious lack of airworthiness, they must probably doing that intentionally
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Wings don't help if you are below the stall speed.
Isn't that true for all winged aircrafts? By all means let's hold the Heaviside to the same high safety standard as other aircrafts, but not higher.
Indeed it is, and my comment should be read in the context of the post I am replying to. Having wings gives Heaviside an advantage over purely multi-rotor aircraft most of the time, but during VTOL operations, there is a stage where the wings do not help.
Helicopters have an advantage over all other VTOL aircraft in that they can autorotate, though this is especially tricky in lightweight helicopters, on account of a lack of rotor inertia.
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> This is about how much noise your aircraft are allowed to create. Sounds good. The same rules should apply to lawn mowers, motor bikes, construction, bars, stereos, drones, public transport, bands, dogs, children...
Sound from a lawn mower or a leaf blower is local and temporary. Yet cities do ban gas-powered leaf blowers. http://files.meetup.com/4709972/Leaf%20Blower%20bans,%20etc....
Every time I see a multirotor carrying people, I think of the many times while building them at the beginning of the drone renaissance that I saw 4/6/8 bladed multirotors have an AP failure, a blade break, a speed controller overheat, etc etc and it fell out of the sky, literally. These do not have a glideslope! Sure, a ballistic chute might prevent an onboard tragedy but I continue to wonder about what the flying ca…
[I've been an engineer working on this vehicle for the past 2 years.] Hi HN! It's great to see lots of interest. One big reason we went public with the project is to help with recruiting, as we're starting to scale up our hiring for lots of positions, including testing, manufacturing, and every sort of engineering that you can think of. The team is super strong technically, and is full of people with interesting back…
Love what you're doing and hope it's a success! That being said, how do you answer skeptics with questions similar to "What makes you believe your version will be different from the myriad of vaporware or lab-demo-only competitors?"
Why does it look like a toy when it flies? There’s something about he way it moves when it changes direction or lands that makes it not look as big as it should.
The flight jerkiness probably comes from the flight controller not being super polished, and also the aircraft being piloted remotely by a drone pilot, so the pilot doesn't have the same feedback an onboard pilot would have.
The solution is remote work, not flying cars.