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▲ synapsomorphy 2 hours ago

Ok, so it actually flies. That was unexpected.

It's an incredible engineering achievement to build in massive fans and rocket engines into a high performance car. It's truly wild.

It's being sold in two modes. One with cold gas (no combustion) seemingly just for extra forwards acceleration (no flying) and one with real combustion rocket engines, the latter was in the video and is "invite only".

Wild that they devoted so much effort to an economically completely infeasible model. I wonder if the combustion version will even break 3 figures sales.

Even just the cold gas variant seems like a nightmare for production, there's a high pressure COPV in that thing and that's gonna make crashes much more.. exciting, and Tesla doesn't have a great record anyways. But very few of these are ever getting sold anyways.

▲jcheng 2 hours ago | parent | next [-]

Reading https://www.tesla.com/roadster, it seems like both variants only use cold gas thrusters, and the difference is that the "normal" (lol) one only has them pointed rearwards while the flying one has them pointed in all different directions as well.

▲jacquesm an hour ago | parent [-]

I'm sure having a cold gas thruster is going to be no problem at all for road approval. /s

▲lallysingh an hour ago | parent [-]

Best guess is that it's disabled for anything but track/trick stuff. There will be some cool videos eventually showing up with tricks people pull with this. I don't know what else it's for.

I can imagine the lateral thrusters helping it turn faster on the track. Although I wonder if the extra weight is going to net out positive for lap times.

But really, a few very rich people will buy the full-rocket version to impress their friends. They'll play with them on private property.

▲scheme271 13 minutes ago | parent [-]

Solo track use at that. I can't imagine that other drivers are going to be all that happy if they get hit by the exhaust from one of the thrusters in a corner.

▲delichon 2 hours ago | parent | prev | next [-]

> kinda wild they devoted this much effort to an economically completely infeasible model.

Watch Ford v Ferrari for an idea of what auto companies are willing to invest for bragging rights.

▲estearum 2 hours ago | parent [-]

Ford and Ferrari aren’t on the brink of extinction

▲dboreham an hour ago | parent [-]

Tesla's stock price might be detached from reality, but is their actual business in trouble? I ask because anywhere I travel (Europe, UK, HK, NZ for example) there are just tons of Teslas, most of them the latest refresh models. There were more Telsas than BYD in Hong Kong!

▲billfor 2 hours ago | parent | prev | next [-]

I thought somewhere in the video they said that it is just regular compressed air that is held in a tank, and that the car itself has a compressor and regenerates the compressed air over time. Obviously to stabilize that amount of weight the gas has to be ejected at such a high rate it is practically frozen at the nozzle outlet, but it is still just regular air.

▲jfoster 32 minutes ago | parent | prev | next [-]

They save on advertising to spend on mind-blowing demos.

▲js2 2 hours ago | parent | prev | next [-]

> and one with real combustion rocket engines

The site states it's cold-gas thrusters for both models: "Features a multi-mode suction system paired with cold-gas thrusters positioned around the perimeter of the vehicle that support forward and upward acceleration as well as lateral rotational movement."

▲m463 an hour ago | parent | prev | next [-]

> Wild that they devoted so much effort to an economically completely infeasible model.

Can't help but think of the not-a-flamethrower

(friend bought one for $500, now they seem to be worth $1500-$2000)

https://en.wikipedia.org/wiki/The_Boring_Company#Merchandise

▲CamperBob2 31 minutes ago | parent [-]

Isn't it just a relabeled weed burner?

▲defrost 24 minutes ago | parent | next [-]

Reshaping of a classic blowtorch - if you're looking for a level up, try the Rodenator - less immediate flame, way more bang at the end.

▲m463 20 minutes ago | parent [-]

The Rodenator is an applicable device that injects a precise mixture of oxygen and propane into the dens of burrowing rodents, and kills them with a concussive force that collapses the rodents' tunnel system as well.

https://en.wikipedia.org/wiki/E_B_Meyer_Inc.

that sounds quite amazing, and it looks like something out of ghostbusters.

▲m463 23 minutes ago | parent | prev [-]

Maybe the roadster could just be termed a relabeled street sweeper?

(wonder how they'll keep stuff out of the intakes)

▲casualscience 2 hours ago | parent | prev | next [-]

It's cool as fuck but calling it flying is misleading. It jumps and can maneuver in space.

▲arjie a minute ago | parent | next [-]

Documented in this immortal scene from Samurai Jack: https://youtu.be/l2KCUaKK_0A?t=12

Aku: You can fly?!

Jack: No, jump good.

▲pg_bot 2 hours ago | parent | prev [-]

"That wasn't flying. That was falling with style!"

▲metabagel an hour ago | parent [-]

It’s a flying squirrel.

▲hatthew 2 hours ago | parent | prev | next [-]

It's very economically feasible if it pumps up the stock price

▲pastel8739 2 hours ago | parent | prev | next [-]

to be fair we don’t actually know yet that this is a high performance car. We only saw it drive a few mph without rocket assistance

▲synapsomorphy 2 hours ago | parent [-]

Good point. It can't have much battery. Also wonder if the propellant/s are cryogenic. Monopropellant? You could tell from analyzing the plume.

▲40four an hour ago | parent | next [-]

I think everyone is getting too caught up in the Thrust and Rocket variants. There aren’t going to be very many of those. But the base model will just be a regular Tesla.

▲LorenDB 27 minutes ago | parent | prev [-]

Sounds like it was just compressed air (rechargeable on the fly). Impressive if true.

▲ an hour ago | parent | prev | next [-]
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▲gizajob 2 hours ago | parent | prev | next [-]

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▲alasdair_ an hour ago | parent | prev | next [-]

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▲serf 35 minutes ago | parent | prev | next [-]

>Wild that they devoted so much effort to an economically completely infeasible model. I wonder if the combustion version will even break 3 figures sales.

it's wild to me after all of the on-stage lying that we're even considering what the future economics of the rocket-powered-road-car are going to be.

it's wild to me that he has yet to deliver on the self-driving stuff, but has decided to progress into rocket-powered circus vehicles.

it's wild to me that he's getting credit for a fan car, after 50+ years of on-track existence and the recent production of the McMurty.

I'm curious to see how it all pans out, and whether or not he has enough Washington connections to get a fan-powered rocket car onto the streets, and I am curious to see the first LA block-shutdown street race accident involving an intentionally aerial vehicle.

Historically fan cars haven't been allowed on the streets because they 1) destroy asphalt and 2) throw chunks of destroyed asphalt into traffic.

I'm not entirely sure how thrusters that can lift a 3k+ lbs sports car off the road jibe with preserving the roads for others.

https://en.wikipedia.org/wiki/List_of_predictions_for_autono...

▲nullocator 41 minutes ago | parent | prev [-]

I suspect it "actually flies" much the same way the cybertruck is bullet proof and has an ultra hard stainless steel exoskeleton, in that it doesn't. This seems like smoke and mirrors conman shit pumped up to 11.