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Tesla unveils new Roadster that can fly

Stunt or not it's quite neat that we have the tech to do this if we so desire.....

Now how would you fill out your accident report if you fell out of the sky after jumping a traffic jam with thruster failures?
 
You could make a production car with suction, but it probably can't be electric because of the size and weight of a battery with any range. You could also make a drivable car with cold thrusters, but you only have enough fuel for a few seconds, as seen in these demonstrations. and again not enough space to do more than one gimmick on any particular car. I'm pretty sure there's not enough space for a person in this one.
 
The entire rear of the car was apparently modified to hold the pressurised tanks required for this cunning stunt. It was far from being a practical modification or one that would make it into commercial vehicles. A publicity stunt was indeed all that this was.

Not untrue, fathoming a freeway full of those seems impracticable at best, but it's a proof of concept and can be the basis for new or tangential thoughts for application. Looks cool regardless.

At some point, there is always a proof of concept that, if approved, gets refined down the road... no pun intended... and can lead to a more common and practical device, directly or even tangentially. Heck, even the treat known as "hard pretzel" started out by accidental happy happenstance, and that's the best thing since sliced bread... 😋

Magnets. or maybe the thrusters were already operating in a "push TOWARD surface" mode.

thing is, there have technically been flying cars since the sixties, but their utility has always been limited by various things. and i, as a lifelong pedestrian and sometimes passenger, am not confident in any of the drivers in this country to play well with flying vehicles.

Not just drivers, the moment a pedestrian jaywalks then the confidence goes down even that much more. Even farther if the jaywalker traipses in front of a semi, completely unaware of the laws of drag factor and gravity for regular vehicles never mind heavy ones: How long it takes a 10-ton vehicle to slow down and stop when Jaywalker Jimmy there can't care... but no worries, the latest cartoon bunny cartoon is showing on the phone and that's more important to pay attention to in a populated setting... 🤪
 
there are probley a dozen of alternate earths in the mulitverse where flying cars have been around since the 2000s era

and another dozen of alternate earths in the multiverse where flying cars have probley been around since the 1990s era
 
Scott Manley's very interesting analysis of the cunning stunts.

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Also, if a car actually could fly, then it would best to call it something other than "Roadster." ("Where we're going, we don't need roads!")

Closer to the Speed Racer Mach 5. Here are details of Musk's vehicle

Going straight up for collision avoidance, jumping over a train crossing...some legitimate uses.

Moller's concept:
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Now, my choice would be for F-35 Lock-Mart guys to build something like Moller's vehicle, but with Roadster tech for emergencies:

The biggest component here is the COPV:

One Falcon exploded, so Elon took to wrapping his own as part of vertical integration. Starship is supposed to have autogenous pressurization, so this is a way to keep the COPV skillset alive.

O/T
Sea Dragon was to be a pressure-fed rocket, made out of steel:

This rocket would have been both stronger and simpler than Starship.
 
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Going straight up for collision avoidance, jumping over a train crossing...some legitimate uses.

Hardly. All that's been demonstrated is the ability to slow descent. That's a far, far cry from controlled ascent, which would be far more difficult. Even if it were physically practical, adding a third dimension would only increase the risks of collision or damage, not reduce them. Collision avoidance is a matter of seconds or split-seconds. It would take time to build up enough pressure in the jets, you'd have to check overhead to determine if the airspace was clear of power lines or other obstructions, and it would probably be a fairly slow liftoff, not only because of the physical limitations of the technology lifting such a heavy mass as a car, but because high g-forces would not be healthy for the vehicle or its occupants. Not to mention that if it's in a crowded intersection, there might be no clear space to land. The same concerns apply with a train crossing -- building up the pressure for liftoff, carefully maneuvering over the track, checking for a clear landing zone, and descending slowly enough to be safe would take so long that it's probably quicker just to wait for the train to pass.
 
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