Will soon redesign the rocket around mentos and diet coke.

@Allan_aka_RocKITEman

5 жыл бұрын

*SWEEEEEET!!!!* 😊😊😊😊

@quasar7683

5 жыл бұрын

Hahahaha! That's a good one.

@josephmitchell8935

5 жыл бұрын

Wonder what the ISP of that reaction is...

@nathansmith3608

5 жыл бұрын

Dmitry is gonna steal your idea, look out for the press release seeking sponsorship from the Coca Cola brand

@Allan_aka_RocKITEman

5 жыл бұрын

I wonder if that failed *_"New Coke"_* would improve the Isp? 😊

"They'll need 50 kilograms of batteries..." Huh, that doesn't sound too bad. "...per second" oh

@charlesfowler4308

5 жыл бұрын

Especially as fuel "disappears" when you burn it, meanwhile you gotta take those batteries all the way with you!

@epincion

5 жыл бұрын

Yes, 48 megawatts is a lot of power.

@SgtHappyHands

5 жыл бұрын

This is outside my area of expertise, but wouldn't all those batteries eventually become a lot of hazardous waste anyway? You can only re-use them so many times right?

@w0ttheh3ll

5 жыл бұрын

@@SgtHappyHands at the crazy load rate they would need to be discharged in this rocket concept, the batteries could be used a couple of dozen times at best, with performance measurably degrading every launch.

@jtjames79

5 жыл бұрын

@@charlesfowler4308 You can drop the batteries. Use air bag lithobraking like Spirit and Opportunity for the packs. Funny enough, this design makes the rocket extension cord possible. It's all gravity losses and TWR for first stages. If the first two seconds of flight are tethered, that's that many fewer batteries needed. Add a simple rammed air generator and you can get the landing power regenerativly. I wouldn't even call it a traditional first stage, more like a Kickstarter stage maximizing TWR and only TWR, so the ISP stages can do their jobs.

1:06 I don't trust a rocket company that typos "launch"

@starchaser2489

4 жыл бұрын

You wouldn't have launch at the lunch pad? ARCA is giving away FREE FUEL with every order, take a seat and enjoy the show. ARCA POP-CORN and cold fuel, what could be better?

@markzaikov456

4 жыл бұрын

Must be hungry while editing

@Fred_the_1996

4 жыл бұрын

L U N C H T I M E

@KiithnarasAshaa

4 жыл бұрын

That's not a typo, Rockets at Breakfast and Dinner are perfectly safe and zero-emission.

@scenicdepictionsofchicagolife

4 жыл бұрын

@@Fred_the_1996 this killed me

"Environmentally friendly rocket"... whole bunch of LiPo batteries... Aight.

@MouseGoat

4 жыл бұрын

TBF as we moving forward in battery tech and fusion technology, or if just using some chemical, this thing could be really neat idea. Its not like its a bad idea having water powered rockets, if we gonna be launching rockets every day in a future space-age.

@tybaltd.1521

4 жыл бұрын

@@MouseGoat Its actually kinda cool if you consider mined water in the next 100 odd years.

@WolfPeste

4 жыл бұрын

LiPo: Lithium-Polonium?!!

@ryano.8768

4 жыл бұрын

Well actually, the exhaust in the form of water vapor higher up in the atmosphere can become a potent greenhouse gas, way worse than CO2. The CO2 knocks the water cycle off balance by slightly raising temperatures, but straight up adding water vapor to the atmosphere at these altitudes is even worse for the delicate balance.

@eternitynaut

4 жыл бұрын

Water vapor as a form of self reinforcing feedback loop requires global higher levels of evaporation driven by the sun and enabled by higher average temperatures.

"Space Travel: Just Add Water!" (batteries not included)

@RazorSkinned86

5 жыл бұрын

I doubt it is going to work out... but hey, if they can pull it off power too them.

@prongs82

5 жыл бұрын

Jebediah Junkyard?

@Treblaine

5 жыл бұрын

No one's gonna top that.

@falafeldurum2095

5 жыл бұрын

1 Question: why is there first a typical nozzle, and now Scott talks about an SSTO that has an aerospike? If they want to launch the rocket on an aerospike engine, why do they make experiments with standard nozzles? btw aerospike SSTO sucks

@danielb9545

5 жыл бұрын

Lol good one

So they made a rocket with the power consumption of a resistojet, the safety of a boiler, and the efficiency of an SRB.

@samuelgomola9097

5 жыл бұрын

But "clean"... 😂

@mustachemonster124

5 жыл бұрын

Go to 5:41 and look at that specific impulse, 50-65 seconds. An SRB gets about 300 seconds in vacuum. This is more the efficiency of a nitrogen cold gas thruster.

@Verpal

5 жыл бұрын

Hey I am sure EU will very much like to fund this Green new initiative! And I hope that fund is ''repurposed'' to fund actual rocket!

@5_Sigma

5 жыл бұрын

I could be mistaken, but isn't water vapor one of the most potent greenhouse gases?

@janskacel9480

5 жыл бұрын

@@Verpal EU actually doesn't fund bad ideas like this one. The closest fund dedicated for experimental stuff like that is actually Horizon 2020. Look its projects up.

I'm thinking that anyone who understands physics, as well as anyone working for this project, has a pretty clear sense that ARCAspace is less about getting a payload out of a gravity well than it is about getting money out of Kickstarter donors.

@JackMott

2 жыл бұрын

Stuck a bunch of electric oven bits in a sphere, good to go.

everyone: great technology arca: the only problem is it needs a powercable everyone: ...what? arca: its usb-c tho everyone: great technology

@peppersalt

4 жыл бұрын

*Neon Genesis Evangelion music starts

@KertaDrake

4 жыл бұрын

On the launchpad: Rocket explodes. Arca: Curses! Out-of-spec Chinese knockoff cable!

@vask92

4 жыл бұрын

hey, how about Bluetooth power

@michaelcombrink8165

3 жыл бұрын

They could heat from the ground with a laser

@NikanDragosysSerpenDra

2 жыл бұрын

@@michaelcombrink8165 DONT POINT IT AT ME

Sounds like the CEO of the company often finds himself in hot water. He should stop pushing his company, take a break and let off some steam.

@Verpal

5 жыл бұрын

@@koseq7 Pun patrol.... hmm.... It would be a great idea to start a dedicated pun patrolling society on reddit!

@nagualdesign

5 жыл бұрын

This conversation is getting super heated.

@nathansmith3608

5 жыл бұрын

@@koseq7 oh shit, pun patrol bot has escaped the reddit platform.. ..this is how we get SkyNet.

@NemoConsequentae

5 жыл бұрын

@Andy Solomons What's the problem? Can't take the _punishment_ ?

@ot0m0t0

5 жыл бұрын

badumtssss

1:04 "At LUNCH, a rocket releases polluting chemicals into the atmosphere..." I sometimes have that same problem. 🌮🌮🌮🌯

@paullangford8179

4 жыл бұрын

Too many beans.

@SaltyPirate71

4 жыл бұрын

When the whole office goes out for "taco Tuesday".

@anarchyantz1564

3 жыл бұрын

They could hook up all the customers asses in Taco Bell as a fuel source.

@alt8791

3 жыл бұрын

::Taco Bell intensifies::

@alastairbrand5821

3 жыл бұрын

Yeah. Same here with my home made curries.

1:03 Do rockets not release polluting chemicals at dinner time? Just lunch? Are they less polluting at brunch?

@starchaser2489

4 жыл бұрын

Having Launch at Lunch Pad now. Got my ARCA raincoat ready. Today's special is, ARCA home-made french fries and a glass full of ARCA FUEL. What can go wrong? Tips are not going to ARCA, will be sent to ROSA .

@leeterthanyou

4 жыл бұрын

I'm more concerned about second breakfast.

@Dumbrarere

4 жыл бұрын

This is going to become a running gag XD

@paullangford8179

4 жыл бұрын

THe hydrogen-oxygen rocket engines produce ... steam ... which is environmentally benign, same as what the sun evaporates off the oceans.

@georgplaz

3 жыл бұрын

I tell you, those rockets are worse than cows..

Three years later and it's somehow gotten even more off the rails

@philb5593

Жыл бұрын

And Scott has been called out as deterring investors with this video.

@_apsis

Жыл бұрын

@@philb5593 no shit, you shouldn’t be investing in it lol

LOL... Using Hobby King lipo batteries. Best not exceed 15c on the discharge!

@JaakkoSavio

5 жыл бұрын

Well.. As it's heat they're after, a thermal runaway in the batteries might not be a bad thing. :) Would make them single use only though.

@kain0m

5 жыл бұрын

Actually, this Picture Looks as if it was from their "hoverboard", I don't know what they'd be using ducted fans for on a rocket. That aside, these are 5000 mAh 5s packs, coming in at 92.5 Wh per pack, about 64 packs in the picture for a total capacity of ~6 kWh. These have enough capacity to provide 42 MW for 0.5 seconds precisely (of course, at a rated burst discharge of 35C, they would need 100 times this amount of cells to be able to actually provide 42 MW, with a total weight of 38 tons (each pack weighs in at 590g) - exactly 1.5 times their stated thrust of 25 tons. So no, this "rocket" is not going anywhere.

@nt78stonewobble

5 жыл бұрын

@@kain0mBut if you could beam the power to the rocket... hmm hmm …

@perianusilviu6263

5 жыл бұрын

Maybe there's also a steam turbine with an electric generator, heat recovery, solar pannels and a little Peter Pan who wouldn't grow up. :)

@MeetDannyWilson

5 жыл бұрын

@@nt78stonewobble And as an added bonus you could use the antenna (for the beamed power) as a sail!

Who needs batteries? Just get a really long extension cord

@officer_baitlyn

5 жыл бұрын

with the added benefit of building a space elevator on ascend 700IQ move

@iangrapes6659

5 жыл бұрын

Considering that battery weight that may be a more reasonable proposal.

@passthebutterrobot2600

5 жыл бұрын

@@iangrapes6659 Yep. Even a 5 Megawatt electricity generator & a big tank of diesel would probably be lighter than all those batteries

@officer_baitlyn

5 жыл бұрын

@@passthebutterrobot2600 but then again power density wouldn't be great

@raulcavalcante9193

5 жыл бұрын

@@passthebutterrobot2600 Power It with lasers

sounds like the whole point is just to create a revenue stream messing around with stuff they find interesting and they don't care about success.

@Shrekfromthehitmovieshrek

4 жыл бұрын

Alan to be fair I would give them money just to fuck with engines

@a64738

4 жыл бұрын

EXACTLY!

This rocket screams "As Seen on TV" enough that I fully expect to find it in the middle aisle at Walgreens

@KertaDrake

4 жыл бұрын

Walgreens is too high class for this... Wal-Mart however...

@amicloud_yt

3 жыл бұрын

The one from walgreens would probably make it further

1:03 "At *lunch* a chemical rocket releases polluting chemicals.." guess I'll avoid the cafeteria.. 🤔

@NoNameAtAll2

5 жыл бұрын

Rockets eat fuel for lunch And humans for breakfast

@MPHammer

5 жыл бұрын

Fly safe.... no wait... eat safe!

@skylark306

5 жыл бұрын

lol at lunch

@sporkeh90

5 жыл бұрын

I was about to comment this lolz

@HylanderSB

5 жыл бұрын

English isn't their first language. How much Romanian do you know?

KZread's auto subtitles heard the intro as "Oh, hey, it got manly today"

CEO: So you’re gonna falsely charge me of fraud eh? I’ll show you some fraud! *Proceeds to come up with water rocket design*

@epincion

5 жыл бұрын

Does it work?

@jamestheotherone742

5 жыл бұрын

@@epincion Yes. Well? No.

@V0YAG3R

5 жыл бұрын

Criminal Romanian scumbag now back in his home country, trying to coax and dupe more investor money since his Ponzi-aerospike scheme ended in his arrest in New Mexico. Interpol and Europol should be on the lookout for this con-man!

@KermitFrazierdotcom

4 жыл бұрын

Jerry Rupprecht ☆ Romania? Isn't that where MOST Hackers operate from? Guccifer? "Me: Totally Legit"

@KertaDrake

4 жыл бұрын

I'm betting that all that funding for their various projects is NOT going where it's supposed to. Whether to the projects they actually want to do or just generally disappearing into pockets, their lack of focus tells me there's something up.

Scott Manly:Refers to that one time Mythbusters blew up a water heater. Mythbusters fans: That could literally be any episode.

@johnladuke6475

4 жыл бұрын

I think there were only two or three with the water heater. It's the chicken gun and remote-steered cars that happen over and over and over.

@TheRysiu120

4 жыл бұрын

Nope, this is a legendary episode and every fan knows it

@notheisenbear5686

4 жыл бұрын

Cement truck... (Mic drop)

@Fred_the_1996

4 жыл бұрын

And the heater rocket

@Dumbrarere

4 жыл бұрын

@@TheRysiu120 The moment Scott mentioned it, I IMMEDIATELY knew which episode he was talking about.

I applaud anyone who builds hardware and does tests.

@Mythricia1988

5 жыл бұрын

I sort of agree. I've been following them for quite a long time, and I don't see their point at all. But, they are actually doing it, they are actually building a booster using their very own hardware and doing real tests, and I can't argue with that. I hope they get something positive out of it.

@benbaselet2026

5 жыл бұрын

Yep, must be cool to be in the project and people with a passion often learn a lot even if the main project fails. Who knows they might spawn another Musk or Manley from there.

@bawlzack7877

5 жыл бұрын

Only problem is they are doing it on investor money and these investors were probably sold on the idea that they have a viable concept.

@benbaselet2026

5 жыл бұрын

@@bawlzack7877 Well if their pitch was "We will try all kinds of cool stuff and see what happens" then fine, if they straight out lied then of course not.

@AttilaAsztalos

5 жыл бұрын

Oh they keep building stuff all the time all right; they just hardly ever actually test any of it, and fly anything almost never.

"[...] never went anywhere." yup, that's the romanian way. been trying to build 800km of highway for nearly 30 years now; it will hopefully be finished in the next decade.

@tudogeo7061

4 жыл бұрын

Fucking rockets, man. Forget the highways

It looks like it would be incredible fun working for the company. However as an investor I'd be ordering mandatory hourly drug tests for all involved.

@AirTerranean

5 жыл бұрын

Hahahaha! Well put!

@Proger-sj8cj

4 жыл бұрын

*Elon Musk : for sure*

@Patchuchan

4 жыл бұрын

I have a feeling if they fired everyone who did drugs on the Apollo program it might have never gotten off the ground.

@CrazyFunnyCats

4 жыл бұрын

Olivia Lambert you go first ...they’ll say. 😂🐸

@railgap

4 жыл бұрын

NASA people are not like JPL people. VERY different worlds! I could believe most of NASA in the 50s and 60s was "drug" free, meaning they all drank like drag queens and smoked like chimneys.

"Cleanest" rocket propulsion ........nah Hydrolox rocket final product is also "water"

@alt8791

4 жыл бұрын

And if there’s a propellant spill, instead of spilling scalding water, you spill hydrogen and oxygen, which will evaporate instantly on contact with the hot Florida air and mix with the atmosphere.

@aerojetrocketdyners-2538

3 жыл бұрын

@@alt8791 is that a sprucccc reference???

@alt8791

3 жыл бұрын

Aerojet Rocketdyne RS-25 no, it’s a real facts reference.

@karliszauers1

3 жыл бұрын

Well it does interact with atmosphere somewhat and does create few toxic gases.

As soon as the temperature of the water was mentioned the first thing I thought of was the water heater rocket on Mythbusters.

@KnightRanger38

5 жыл бұрын

That might be where they got their idea...

@pulsarsbeam6411

5 жыл бұрын

Wonder if they could make a controlled steam explosion just the rocket off the ground then light it's engine at the top of it's appogee. Funny but not practical lmao

@NemoConsequentae

5 жыл бұрын

@@pulsarsbeam6411 Well, technically, that what the valves & anciliary equipment do. With the _upshot_ being, that you can reuse it.

@JoeMoross

5 жыл бұрын

I thought of Evel Knievel at Snake River Canyon.

@IanGarris

5 жыл бұрын

That's basically what they're doing… And frankly, it's not a bad idea. If it adds less than a million dollars of cost to, say, a Falcon 9 launch, but adds a million dollars worth of payload, then there's little real reason NOT to use such a kick stage. Only thing I can think of is that you don't get to test the Merlins before releasing the clamps.@@pulsarsbeam6411

Showing off hobby king batteries made me laugh so hard xD

@deusexaethera

5 жыл бұрын

Oh good, I wasn't the only person who noticed that. Those things puff after a couple runs _on the ground_ -- what will happen to them when they're used _in space?_

@starchaser2489

4 жыл бұрын

Made in China, for ROCKETS? WHY NOT, IF YOU THINK LIKE ARCA, HAHA.

@free_spirit1

4 жыл бұрын

Shoestring budget. Desperate times etc etc

Water Powered Rocket? Gets out cheque book. Watches Scott Manley video. Puts cheque book away. Thanks Scott.

@TeemoQuinton

4 жыл бұрын

@DreamSmasher Yeeeeeeeah no. IMagine how much water it wastes, for one. How insane the amount of batteries the fuckin thing has for two, the cost of lithium in general... Yeah I'll keep my money in hydrogen cars.

@NwoDispatcher

3 жыл бұрын

I think I would use a cryorocket and have it heat up a couple peripheral steam rockets

TBH, seems scammy. Water as a reaction mass could work fine, if you had a fusion (or even fission) reactor on board, and a convenient supply of water.

Lol that picture with all the RC thrusters and lipo batteries :P Been following them for years, always felt like a good scam.

@josephmarsh5031

5 жыл бұрын

At least they are doing stuff with it. Potentially useless stuff... but stuff none the less. They could be just spending it all on blow.

@chaoz1666

5 жыл бұрын

@@josephmarsh5031 exactly, at some point i think some of them might point to this at a engineering job interview ;)

@SpenserRoger

5 жыл бұрын

Yeah he was investigated and charged because during the divorce his wife said something to that effect to the police or her new boyfriend, lol. I think the company receives government money at times too. And like Scott is being a little silly here. The ride on hoverboard did sell units and generated both capital and publicity for the company. Honestly I don't think it's a scam. The CEO is just an incredibly hardworking and ambitious young guy from Romania who has run into a little more than the average amount of set backs and has tried to do incredible and original things on a limited budget. If anything I could say that this cab was rare But I thought nah, forget it, yo homes to Bel-air!

@kazedcat

5 жыл бұрын

I was just hoping they could get aerospike airborne even if nothing pan out after that.

@ryanGevans

5 жыл бұрын

I don't think it's a scam, I've been following Arca since early last year. I think Arca have given an insight into the reality faced by many startups, not many actually succeed, but we don't hear about them. I hope they can keep going, I'd love to the aerospike in operation.

Steam rockets have been a thing since KSP became available on Steam

@deusexaethera

5 жыл бұрын

LOL, but actually all rockets that burn hydrogen are steam rockets.

@freemanacount5609

4 жыл бұрын

har har har

This might be the best money laundry in history of man lol

@WasatchWind

2 жыл бұрын

They even have hot water to run the washing machine

That promo vid was very informative and professional. Always wondered what rockets have for lunch.

To me, it looks like ARCA is the Moller Sky Car of rocket companies. They will always have a pitch that sounds semi-plausible to investors, they'll continue to make incremental design changes, they will never produce an actual usable product.

@marcelomiranda3362

5 жыл бұрын

this looks for me too. When I see the first time their project I got excited, but we never see any result...

@lordgarion514

4 жыл бұрын

That's probably why he's not in America now You do that too much and an investor/s can take you to court and get control of the company under certain conditions.

Environmentally friendly, till the batteries go thermal. Not explosive, till the tank develops a fault. All sat below a conventional type rocket fuel. Could be a hot shower for those downrange. Can see Thunderf00t loving this one.

@GeorgeMonet

5 жыл бұрын

Not taking into account the fact that everything takes energy and materials to produce. It's not like rockets pop out of thin air. Materials have to be mined etc.

@Keldor314

5 жыл бұрын

Batteries have to be charged. Burning fuel to make electricity to charge batteries wastes energy compared to just burning the fuel outright as propellant - you loose effeciency with every step. Of course, you could in theory use solar or wind power, but in real life these have their own list of shortcomings. On the other hand, coal is more abundant than oil, and good luck making a rocket that uses coal as fuel...

@lordgarion514

4 жыл бұрын

@@Keldor314 No shit, turning coal into a liquid was a popular thing back in the 1850's. Pretty easy too.

@starchaser2489

4 жыл бұрын

@@Keldor314 With a HOME-MADE FIBERGLASS BOILER?

2:46 "a single spadage" This made may day XD

@dickJohnsonpeter

4 жыл бұрын

Why did he say that?

My video preview with subtitles started as "Oh it's got manly here..." :D

As long as it flies safe...

Only a matter of time before they bring back the space cannon lol

@caryrichardson43

5 жыл бұрын

There actually is a company working on that, no joke. They do mining with high speed impact cannons and want to use it to launch microsats. Can't remember the name.

@cplpetergriffin1583

5 жыл бұрын

Robert Smith Well mass drivers have always sparked interest

@pleasestandby5954

5 жыл бұрын

You could build a ginormous rail gun that would shoot a rocket inside a case, which opens up once high enough for the rocket to take over. The only downside I foresee is the crew being liquefied.

@robertsmith4681

5 жыл бұрын

@@pleasestandby5954 I was thinking of the Bull guns

@valorkaizen

5 жыл бұрын

@@pleasestandby5954 would be a perfect plan on the moon or any celestial object without an atmosphere.

That was my favorite episode of mythbusters

hearing you talk about this made me remember some info where the Navy tried using water to propel cannon rounds out of the big guns instead of powder. they had some crazy amperage and voltages involved with decent results, they just didn't have a reactor to power it back then, so it sounded like a long recharge doomed the program. look into it, you might enjoy good sir.

The only channel I'm subscribed to that actually teaches me something valuable

@thomas.02

5 жыл бұрын

Reevaluate your subscriptions....?

His wife started the lawsuit and spread a bunch of misinformation during the divorce that's why he won the case but it also put a big hamper on the testing of the hydrogen peroxide aerospike which I was really looking forward to

@benheinz8817

4 жыл бұрын

That one seemed to be one of their good ideas, yeah.

@InventorZahran

4 жыл бұрын

Having a lawyer for a wife can be both the greatest blessing and the worst nightmare...

honestly with the weight of batteries they would need why not NERVA

@VestedUTuber

4 жыл бұрын

Because Uranium isn't exactly commonly available due to regulations.

@VestedUTuber

4 жыл бұрын

@@Rob-yu6tk Says the cheap ripoff of Rosetta...

@alt8791

3 жыл бұрын

bEcAuSe hOt mEtAl bAd

ARCA TEST SITE FOUND, LOOK HERE 45° 9'4.82"N, 24° 9'22.21"E

It's likely an investor bait with the "reusable aerospike with additional heating from batteries" But what they're ACTUALLY aiming for right now is a dead simple water bottle rocket as an expandable booster. It's literally just a tank of water at 250C and a nozzle (no batteries it's heated before launch) and apparently that's supposed to be comparable with the boosters currently in use. If they can get as much out of a water bottle as you can get out of a solid rocket booster then they're in business, cause that's WAAAAY cheaper and the booster will only become explosive on the launchpad just before launch rather than during manufacturing and all the way until it's burnt up. And that's what they're comparing themselves to, to the solid rocket boosters currently in use. I'm really interested to see if they can pull that off.

@ThomasKwa

5 жыл бұрын

I doubt it would work. Assuming the first stage is 3/4 water and the specific impulse is 125 s, you only get 1800 m/s delta-V, which means with gravity losses you're barely at Mach 4. Turbojets get you there far more easily and even those are a bit impractical.

@MrRolnicek

5 жыл бұрын

@@ThomasKwa What? How can you say you get to mach 4? The booster is a tiny part of the rocket, its weight and speed will depend on that rocket more than the booster, right? And Isp of 125s is basically half of the SRB used on Atlas 5 (245s). Considering how cheap these would be and how low the dry mass of the water bottle is, it MIGHT be worth it, no?

@erikengheim1106

5 жыл бұрын

MrRolnicek, another point you did not mention which I think speaks in their favor: You cannot control the thrust of solid rocket booster which they are trying to replace. That means SRBs will never support vertical take off and landing (VTOL), however their system is supposed to be capable of that. So a super simple system, filled with water, which give the rocket a boost and then lands, to be refilled with water again. That sound like a pretty cheap way of boosting rocket over time to me.

@williamchamberlain2263

5 жыл бұрын

Does the whole booster have to be a pressure vessel if all of the water is already superheated?

@erikengheim1106

5 жыл бұрын

@@ThomasKwa In their paper they claim altitudes of 3000 m and velocity boosts of Mach 2.They claim this will allow them to boost payload of attached rocket with 30%. Would that not be worth it? I mean you just spend electricity and water. The think is supposed to support propulsive landing, and can thus be reused.

So it's a really, really big bottle rocket.

@MVHiltunen

5 жыл бұрын

Yes. And a badly designed at that. The battery section produces less thrust than it weighs. Never mind replacing it with something better, they could just remove it, and improve what sad performance this has.

@masterofthelag8414

4 жыл бұрын

@@MVHiltunen Considering it's electrically heated, why not just heat it on the launchpad and insulate the tank really well so it stays hot? As a first stage presumably it's not gonna be burning all that long, it doesn't have to stay heated does it?

@MVHiltunen

4 жыл бұрын

@@masterofthelag8414 It indeed seems to be preheated already. The pressure rating of the vessel sets limits to how hot you can make it initially. When it starts expanding, the temperature of the whole water column starts to fall, and before long it will no longer even boil. At that point the rocket is dead weight.

@KermitFrazierdotcom

4 жыл бұрын

John Doe ☆ 3 million liter coke bottle!

@KermitFrazierdotcom

4 жыл бұрын

I really like those water rockets from the 60s where you pump up the sir pressure & they spurt all over everything and jump up about 20 feet. Kind of like Scott's logo.

I was really waiting for you to do this video Scott.

Will be interesting to see if they ever get anywhere...

Took a bit longer to load than usual there KZread.... what's going on. Don't delay my Manley

@motmontheinternet

5 жыл бұрын

Were you watching in 1080p? When a video is uploaded it takes a few minutes for 1080p to become available.

@Mystickrage

5 жыл бұрын

@@motmontheinternet mine did it to i just clicked it and i had to wait like a minute or so before it stopped loading and started

@johnqpublic2718

5 жыл бұрын

@@motmontheinternet im not sure probably not. I was just providing some good-natured ribbing. Although KZread hasnt been my favorite, ethics-wise, lately.

Finally a steampunk rocket 😂

@s0meb0dyunkn0wn4

5 жыл бұрын

It must be made from brass and launched from zeppelin.

@mortisCZ

5 жыл бұрын

@@s0meb0dyunkn0wn4 I would fund that. :-D

@JayOhm

5 жыл бұрын

@@s0meb0dyunkn0wn4 Actually, you could get some altitude boost with a large zeppelin! Just make sure the balloon survives superheated steam and you're set!

@ne1cup

5 жыл бұрын

LOL, that is some ballon you got there..

@timothymclean

5 жыл бұрын

If you wanted to design a steampunk rocket, this is a good place to start. If you want a practical rocket...

Have they considered adding an EM drive to power the second stage?

@nastykerb34

Жыл бұрын

no

I love that you took the time to seriously discuss the concept of water powered rockets and finished the video with the "microwave cavity thruster," which sounds like it could be a really cool technology in the future. Most people would have just made a video criticizing the obvious scammers at ARCA and left it at that, but you went the extra step to find something positive and fun to talk about in the subject.

Use uranium fission to heat the water. But, there a few draw backs to that design.

@williamchamberlain2263

5 жыл бұрын

Just a few ...

@HojozVideos

5 жыл бұрын

Especially when it inevitably crashes

@vaska00762

5 жыл бұрын

Just use coal like a steam train, lol

@herobrineharry7698

5 жыл бұрын

There are several surface-to-orbit designs based on nuclear thermal rockets, but they use liquid hydrogen. It’s a bad idea in general, since nuclear rockets really don’t have the thrust to launch from Earth.

@Theodorus5

5 жыл бұрын

Uranium fission e.g. nuclear thermal saltwater is amazingly good for space only operations. Best way to use water / steam propulsion for surface launch is via ground based lasers for remote heating of the propellant

All I can say is, I wish them all the best and hope they make a breakthrough.

@theespatier4456

5 жыл бұрын

letsgetverydrunk Yeah, hopefully they can get back to the aerospike eventually.

@stargazer7644

4 жыл бұрын

Just as soon as they get that repeal of the laws of physics through the senate...they're good to go.

Thank you for keeping it real, Scott.

*Makes a marginal improvement to an already long-existing invention* *"wE aRe tHe fIrSt, wE aRe rEvOlUtIoNiZiNg tHe wOrLd, eVeRyThInG wIlL cHaNgE!"*

@V0YAG3R

5 жыл бұрын

ZedNinetySix Oh, just like the pathological sociopath Elon & Co. and his fluffers: HE INVENTED ELECTRICITY, ELECTRIC CARS, BATTERIES, ROCKETS, REUSABLE ROCKETS, HE INVENTED TUNNELS TOO (Boring Co.)!!!!1!11!111

@alt8791

3 жыл бұрын

They act as if they invented the steam rocket. "We don't use old-fashioned (with disgust) traditional rockets. This new steam is the future!" They say. But Evel Knievel used a steam rocket. "Mad" Mike Hughes used steam rockets. It's an old idea.

Thanks for the informative video Scott! :)

It's great to see all of this competition in the space sector now.

@quazar5017

5 жыл бұрын

competition :D

@iforce2d

5 жыл бұрын

'competitor' maybe... 'competition' not really

Notice how at 1:07 when the ARCAspace slideshow is on, it says "At Lunch , A Rocket Releases"

Not sure I'd rely on it as a core first stage, but it might work as a super cheap strap-on booster, for things which don't need a whole lot of boost... and can always add more boosters.

That microwave-based water propulsion idea could be really promising for orbital maneuvering, especially as close to the sun as we are where it could be driven by solar power. It's got the Isp of a closed-cycle nuclear rocket, but without the associated risks. It couldn't have the power density for surface launches, but could be just the thing for a long transfer burn to the moon or Mars. It might even be viable for launches of the moon if coupled with a fuel-cell system, so the power to heat the water comes from H2/O2 electrochemistry.

@quoniam426

5 жыл бұрын

It is just a less efficient engine than traditional ion engines with Xenon gas. But admittedly as water is denser, it has better TWR but ultimately will have less ISP overall. It might find its uses, need to land somewhere, that's what the ion engiens can't do since they lack the necessary TWR. Could come in handy for landing small payloads on the Moon. But for interplanetary journeys, Ion engines are better for small payloads For inhabited spacecraft, Nukes are the (for now) only way to go, I'm afraid. You just need the water for the ship itself (radiation shielding and water for the life of the astronauts, you just don't want to vent your precious water into space. Until more powerful magnetoplasmic engines or fusion engines or whatever warpdrive thingys are invented, the nukes will be the only engine for crewed flights to other planets, acceleration can make some gravity for the comfort of the astronauts and their health, plus making the trip shorter to the same purpose. But small landers as Beresheet could use some electrical water engines, especially if they land in an area with weter ice and if they are eqquipped with a ISRU for the return trip.

@gsantee

5 жыл бұрын

There is water all over our galaxy and getting fuel from the moon or asteriods is a huge efficiency savings than carrying it out from earths surface. Check out youtube channel "Tmro" they have an interview with a company doing Space Tugs powered by microwave super heated water.

@planetfall5056

5 жыл бұрын

@@quoniam426 "Until more powerful magnetoplasmic engines or fusion engines or whatever warpdrive thingys are invented, the nukes will be the only engine for crewed flights to other planets, acceleration can make some gravity for the comfort of the astronauts and their health, plus making the trip shorter to the same purpose. " Are you talking about an Orion Drive style ship driven by nuclear bombs? Cause Nuclear thermal rockets don't have the ISP to fire for particularly long. Centrifuges are a much more feasible means of producing artificial gravity during long trips than thrust.

@ax2bxc

5 жыл бұрын

"has the Isp of nuclear rockets" yeah, 67 vs >900

@charlescsmith1213

5 жыл бұрын

Planetfall) Not entirely true. The NERVA engine back in ‘68 had an isp around 900s and did full thrust test burns that exceeded an HOUR of full thrust on a number of occasions. They even went through the trouble of flight rating it for a proposed mission to Mars in 1982, though it never actually flew.

Rocket fuels are sometimes explosive..? Hm...

@flyingskyward2153

5 жыл бұрын

Fortunately steam pressure vessels never explode

@maxk4324

5 жыл бұрын

@@flyingskyward2153 looooool

@benbaselet2026

5 жыл бұрын

@@flyingskyward2153 They don't! (As long as you just call it a rapid unscheduled release of pressure or something novel)

@1FatLittleMonkey

5 жыл бұрын

I get the joke and had the same reaction. But some propellants (especially oxidisers) form contact/shock explosives in the rubber seals in the plumbing, or self-disassociate violently upon shock (which is fun if you get hydraulic backlash (hammer) in the pipes). While others are completely stable until mixed/burnt/exposed-to-a-catalyst.

@putteslaintxtbks5166

5 жыл бұрын

All earth to orbit rockets use a substained explosion. Even steam. Just plug any rocket nozzle-boom ! It was even studied to use nuclear bombs, one after another, under the rocket, to go to space (moon?) I wonder if Manly has done a video on that one !

Please do an update video detailing all of their test, delays, and changes.

Scott, do you think linear aersospike nozzles are a good way to move forward in terms of a reusable launch vehicle? Imagine the falcon rockets, but in a Linear Aerospike variant.

@p3riheli0n88

2 жыл бұрын

present day you looking at starship would be amazed xD

As a cook and a chef I know that a hot vapor can burn you much more than a hot iron or so.

this one give me a crazy idea what if make the walls out of supercapacitors and do all the thrust "almost" instantaneously and make is a stage is short in time it is a launch assist

@ciprianoprisan9071

5 жыл бұрын

That is a brilliant ideea, i am thinking at thisfor years..

sees title: oh, good, they finally made one of those nuclear engines "They will be powered by lithium polymer batteries" WTF??

Scott, quick question about 8:00, the MET propulsion: is that actually for lift-off (thus, does it have enough total thrust to be of use for a launch vehicle)? Or is it more akin to an ion-engine, and its use is limited for in-space propulsion?

Steam rockets? We are at peak ingenuity. 😂

@nikkothegoblin

5 жыл бұрын

I remember a flat earther building a steak rocket that successfully launched, however he made it just under a km

@arathorn867

5 жыл бұрын

@@nikkothegoblin a steak rocket you say? I'm intrigued, yet sceptical.

@nikkothegoblin

5 жыл бұрын

You know what, I’m not even going to correct that. A steak rocket sounds sick

@AttilaAsztalos

5 жыл бұрын

Well, the Mythbusters did launch a salami rocket, so I don't see why a steak one wouldn't work...

@DKTAz00

5 жыл бұрын

@@AttilaAsztalos But the salami rocket was a failure, only propelled by the Nos gas :p

It will work. They just need to heat the water until it becomes several million degree plasma that's all. Easy.

@markus5888

5 жыл бұрын

so a ton of batteries?... per second 😂🤣

@johnrickard8512

5 жыл бұрын

That would technically be a plasma thruster.

@deandeann1541

5 жыл бұрын

Yes. Get close to the Planck temperature and that steam will give you a specific impulse higher than you need for sure.

@ne1cup

5 жыл бұрын

just skip the waters and go for the spark plug plasma rocket?

@kampretmemanggila8649

5 жыл бұрын

@@markus5888 shoot with big hot laser from ground.

I Love the eyes contact of Scott to all the corners of the room 😜

there is a theoretical variation of this were the water is super heated using high power lasers from the ground, which gets rid of the battery problem.. i have no idea how feasible this is though.

The world needs more gonzo space ideas. I wish these gentlemen well.

@deusexaethera

5 жыл бұрын

Dream big, design small. The reason mad scientists don't really exist is because 1) magic doesn't work in real life, and 2) gonzo ideas are primarily useful for making mad scientists explode.

1:58 looks like they ordered the batteries from Hobby King, I just ordered a Zippy from them myself

Hard to sell a timeshare when the buyer knows math

I would live for this to eventually pan out, even if it would only be used for LEO operations. Unfortunately i am a bit skeptical, but will infrequently check them out. They have a launch scheduled for May 2021, and while i doubt that they will keep it, i do wish them luck.

The pitch of a "environmentally friendly" rocket seems like an emotional appeal to a green optimism and youthful naivity in the less educated portion of rocket enthusiasts. The real issue is if it turns out to be feasible.

@tedarcher9120

5 жыл бұрын

Most power in Romania is from coal. Coal powered rocket

@pafnutiytheartist

5 жыл бұрын

If half of your rocket is batteries and your rocket is not reusable... I have doubts on how eco-friendly or cheap it is. Just using cryogenic hydrogen+oxygen might be better. If they manage to reuse it than it might work but still a lot of doubts on how many times will you be able to use it.

@tedarcher9120

5 жыл бұрын

@Dave54600 one flat earther also developed steam rocket. It succesfully flew 1800 feet into the air. So flat earthers are ahead in this field

@Psycorde

5 жыл бұрын

@@tedarcher9120 As is pretty much everywhere, if you didn't know.

@noteda6361

5 жыл бұрын

Nice burn.

I remember them ftom the days when they were doing pendulum rockets. They are all powerpoint and litte engineering.

Hello and thank you for that topic. I'm enjoying your work for a while now. In advance please pardon my "french". In addition to your material here: in former CCCP there was several projects studied that implied the use of steam power for boosters or several first stages of a rocket that was to be launched directly from the surface of a sea . The rocket had no start tower or ramp. It had to be floating in the sea and directed upright just before launch by filling the stages with the seawater. I'm not surten if that water is being desalted in the process or not. Any how. It was one of the considered solutions for cheap, frequent launch system for near equator launches or alse ware. The key there is to be flexible. The power for filling and heating has to be provided by a toweship, that was also to be utilized as a control centre. My source in this matter is only my memories. If I remember correctly one of the publications about that was in a popular journal for jung technicians called : "юнный техник" somewhere in 80s-90s. But i've learned/stumbeld about it again and again while visiting university. With kind regards. Yevgenij

The analysis in the enthalpy-entropy diagram is straight forward .

Sounds like they are just having a lot of fun with other people's money and that's all, pretty smart actually.

@benbaselet2026

5 жыл бұрын

I'm very jealous. Imagine how many R/C batteries and other gear they can repurpose for personal enjoyment :-)

@starchaser2489

4 жыл бұрын

@@benbaselet2026 Well at least they purchased all the defective batteries from China.

@Ensign_Cthulhu

4 жыл бұрын

Fleecing the starry-eyed greenies who don't know enough about actual rocket science to find the flaws.

1:06 Then launch them at supper, jesus crust do I have to think of everything?

@londonalicante

5 жыл бұрын

@Jim - "jesus crust" LOL!

@starchaser2489

4 жыл бұрын

Jesus Crust is having his last launch on the lunch pad now. Hope he brings his Jesus rain coat. Then tells Mister Potato Head the pearly gates are closed until further notice. ARCA POTATO HEADS HAVE SINED, "Thou shalt not steal". Deported from the U.S.A. for LIFE, BANNED AFTER DEATH.

The KSP figurines keep staring into my soul

+1 for water rockets! :) Thanks for the analysis Scott.

I love the "at lunch, a rocket releases polluting chemicals into the atmosphere [...]" in their original video; so do a lot of other things, but I didn't think our lunchtime emissions were /that/ concerning.

@frizzon

5 жыл бұрын

That depends on what you had for lunch

Don't forget, that's how the RCS and basic thrusters work in The Expanse (flying "teakettle")

@leerman22

5 жыл бұрын

H2O arcjets powered by an OP reactor with almost no radiators?

@andreasdill4329

5 жыл бұрын

Jep, the Teakettle modus. First thing that came to my mind while watching the video.

@44R0Ndin

5 жыл бұрын

​@@leerman22 Direct energy conversion of ions to electricity and using a fusion reaction that doesn't produce neutrons as a byproduct makes for very little waste heat (still enough that you'd see glowing red radiators SOMEWHERE, but maybe they're using the engine bells for that since they already need to contain extremely high temperatures).

@leerman22

5 жыл бұрын

@@44R0Ndin There's still a lot of photon energy to deal with. Ignoring photon energy 100W of charged particles collected for 90% efficiency means there is still 100W of heat to remove without melting anything. All other systems like life support and weapons need their own cooling. The reaction mass is far hotter than any material can take so there would have to be red-yellow-white hot radiators somewhere ofc. The engine bells alone wouldn't keep up with that without melting. Children of a Dead Earth ship design is so much more realistic it just needs a very efficient Epstein Drive.

@Temstar04

5 жыл бұрын

I thought teakettle is just standard solid core fusion rocket? So same as NTR, but replace fission reactor with fusion reactor, and with water as reaction mass. Epstein's original prototype was a fusion rocket of some sort with some custom modification that made it magical. Why would you use fusion-electric propulsion when you could be using fusion thermal?

I have followed ARCA for a while. Shysters comes to mind.

"At lunch, a rocket releases polluting chemicals into the atmosphere" XD and when they sleep ?

@starchaser2489

4 жыл бұрын

You have been chosen by ARCA to have Launch at the Lunch Pad. Every order comes with a nice cold glass of fuel, FREE. How exciting this will be, just don't forget that rain coat. They will pick you up at the launch bar at the Airport. Then enjoy your ride in the Aerospike car, how cool is that. Send us all a Post card when you arrive.

Steam Powered Rocket? Sounds a bit Victorian to me. Tweed spacesuits?

@ne1cup

5 жыл бұрын

Steam punk for sure..

@01MrCapricorn

5 жыл бұрын

Tweed spacesuits would be amazing...

@gsantee

5 жыл бұрын

Nose baggers be warned!Daddle your fly rinks and heave your gas pipes we set out to put giggle mugs on the jamiest of jams. There is no parish pick-axe as dapper nor saucebox as afternoonified, as this dark cully door-knocker and duds.

@AttilaAsztalos

5 жыл бұрын

...fishbowl for helmet?

@starchaser2489

4 жыл бұрын

@@AttilaAsztalos And ARCA SPACESUITS FROM A FLEA MARKET. CHEAP ONES ARCA CERTIFIED. ONLY IN ROMANIA. GO ARCA POTATO HEADS, GETTER DONE.

Wouldn’t a hydrox rocket be just as environmentally friendly? Plus it has the benefit of it working.

@WasatchWind

2 жыл бұрын

xD

@user-iu3ym7ri9h

2 жыл бұрын

And it has more than 2 isp

Love your little Kerbal figures in the back ;-) :-P

good research

Correct me if I am wrong. The so called "water heater rocket", wouldn't it have an advantage over a classic chemical fuel rocket? If you use electric power to heat up water and use the steam as propellant, you can use electricity generated on the launchpad to heat the water to insane temperature and pressure before launch. Once energised, it work like a solid rocket booster delivering thrust from the build up pressure alone. The "booster" can be as simple as a high pressure resitant tank, a nozzle and externaly powered electric heating element. No need to carry heavy battery, the rocket would have initially access to a near infinite source of power at the launchpad, because heating the propellant comes from an external source the rocket doesn't need to carry, instead of fuel combustion, meaning you could carry proportionnaly more propellant in principle.

@planetfall5056

5 жыл бұрын

"because heating the propellant comes from an external source the rocket doesn't need to carry, instead of fuel combustion, meaning you could carry proportionally more propellant in principle." Chemical fuels also get their energy from an external source, the power that ran the chemical plant that produced them. Both the hot water and chemical fuel are means of storing power, one does it through heat, the other through chemical bonds. The problem is hot water (at the temperatures you can reach without melting your tank) stores less power per pound than chemical fuels.

@edtExodus

5 жыл бұрын

Any fuel just stores energy and releases it as it is being used. That's the point of fuel. Energy density is what matters, and heated water isn't that great at any temperature one can reasonably handle it at.

Glad you covered this. I really thought it was a scam to get people's money

@legolegs87

5 жыл бұрын

It still is, IMO.

It would be fascinating if you built and launched ARCA's system in the simulator !! Please do that!

Hey. Could you have a first stage fixeded to the ground as a sort of steam cannon? Just to the get the thing going. Then have subsequent regular stages to do the the rest of the trip?

This is how I see how a steam rocket might be viable: a molten salt reactor for heat and electricity; Use the heat to boil the water and then feed the steam into a microwave cavity thruster.

@neverever7233

4 жыл бұрын

You nailed it, Buddy!

@JackMott

2 жыл бұрын

There are 1,000 fun ways to move a rocket around if you first imagine you have a reliable source of tons of energy that doesn't weigh much.

would it be more efficient to run the steam engine on coal instead of batteries?

@vovochen

5 жыл бұрын

Yes, but worse heat/s

@joshua43214

5 жыл бұрын

This is why Britain does not have a space program...

@awatt

5 жыл бұрын

@@joshua43214 We don't have a space program because why would the country that invented gravity want to go to a place that doesn't have any? Also we sold our space program to the French for one pound.

@ne1cup

5 жыл бұрын

mixed with old rubber tires and liquid oxygen would be your basic solid booster rocket , so yeah worth a shot..

@jeffvader811

5 жыл бұрын

@@joshua43214 We used to, we developed our own orbital rocket and everything. But then the government cancelled the programme after the first successful flight and we ended up using American rockets instead (which were twice as expensive). Britain is always held back by politicians who can't see past their own nose >:( Ahh well, at least we've got Skylon.

What I wanna know is where you got those slick starship and starhopper model you got behind you!

It's funny you finally talked about ARCA. I got recommended some of their videos a while back and after a couple it just seemed really fishy. Glad I'm not the only one who thought so.