San Francisco to Tokyo in 3 hours? This turboelectric jet engine could make it real | Hard Reset

[@lazurusknight2724]

Look at that glorious, glorious cable management!

[@schlenbea]

I love this idea, I love his passion and I wish him and the team nothing but success! Would be amazing to experience this one day.

[@i_accept_all_cookies]

Power to them. I really hope they make it happen, it ticks so many boxes. It's surprising that the jet engine hasn't changed that much in all this time.

[@jtjames79]

I've been pushing for this for years. Every time I said it was possible some Aerospace jet engineer said I was crazy. I want this design for a jet pack. Well mostly this design, it should be possible to add rotating detonation as well. If AI can get cold fusion to work, suborbital intercontinental ballistic jet packing should be possible. Anywhere to anywhere in 20-ish minutes. Depending on your reentry modality. Bringing an alibative surfboard would get you down faster than a retro burn.

[@loak1010]

US-based Venus Aerospace is currently developing a jet engine that it claims could go as fast as Mach 6. And reports of a Chinese aircraft has already completed its test at a speed of M4 recently was widely echoing amongst many reputable channels, I wonder it is true.

[@papajust69]

Who's here to be ahead of the world? 🚀

[@julianzurn1428]

I‘d rather have the world keep up with all the technological advances. That would help in dealing with misinformation and lying, narcissist politicians.🙃

[@jtjames79]

I started talking about this being possible years ago. This has happened to me dozens of times. People forget engineers use the internet. The haters actually make comments more visible to the people who are capable of implementing them. The best way to motivate an engineer, is to tell them something is impossible, once it's proved possible.

[@homewardboundphotos]

Sees video title: "Wow this is complete bullshit, lets watch it" watches first 10 minutes of video: "this is amazingly sensible"

[@Tehscottinator]

using a gas turbine to generate electricity to power electric motors is adding cost, complexity and inefficiencies and is an absolute non starter. This is high grade snake oil. Motors and turbines aren't the problem, it's fuel/battery/energy density/weight that is the issue and this is more inefficient and more weight than current jets. If you really want an electric jet with current tech the only real answer is an unshielded nuclear reactor that will seriously harm all passengers.(yes that's been done before too). The reason why commercial planes don't go supersonic is because air resistance drives fuel costs up, going faster just costs a lot more.

[@jtjames79]

​@@Tehscottinator Every time you tell someone how impossible it is, it motivates one engineer out there to try. You're literally looking right at it and you're claiming it doesn't exist. If I had to guess I'd say you are probably a Boeing employee.

[@ebx100]

@@jtjames79 Or far more likely...was.

[@trwsandford]

Looks like Elon might get a new buddy here! It must be frustrating to only have conversations with mere mortals.

[@oldschoolman1444]

Leon isn't that smart, he just has piles of money to hire smart people.

[@JSM-bb80u]

Lol. This guy is smart. He is an engineering nerd. Elon is just an investor.

[@William_ar98]

So the turbine is replaced with a electric motor. This electric motor then gets electricity from a gas turbine generator. Where do you gain efficiency? If I guess its because a single gas turbine can run at max efficiency and power multiple electric motors. The Electric jet engines then are more efficient because no rotor is blocking the exhaust. Am i understanding this correctly? Love it, very cool!

[@Quatuux]

The best land-based combined cycle gas turbines reach only 55% efficiency. I think you're correct, there are no efficiency gains but instead huge losses with this concept. A conventional turbine has an efficiency of 90+ %.

[@ihateemael]

I can't see how adding another conversion can benefit : gas - electric generator - electric motor : each step adds losses

[@menacingdonutz]

@@ihateemaelengines can be designed to be extremely fuel efficient when they are made to hold a very specific RPM, that could potentially make this kind of idea more efficient than the traditional gas turbine we use currently. It’s an idea we already use for our train engines, a very efficient diesel generator runs as needed to charge batteries that drive the electric powertrain.

[@nathanryweck3137]

I think there is a turbine in the exhaust. The efficiency comes from the ability to change the speed of the compressor independently of the turbine. Most jet engines only have one moving part. The turbine and compressor are moving together on the same shaft.

[@William_ar98]

@ihateemael yes agree, this seems like such an obvious thing they should explain in the video

[@ranindunethsara887]

great video bro thanks

[@NickFromHardReset]

@@ranindunethsara887 thanks for watching!

[@jayk7781]

Terrific seeing the future before our very eyes. All the success to these men and women!

[@JSM-bb80u]

16:08 that sound of transition was amazing.

[@Petriefied0246]

This configuration of electric driver fans with a turbo generator is extremely efficient because you can recoup a lot of heat through recirculation. I thought it would be suitable for Lilian's aerotaxi for similar reasons that it also suits a supersonic aircraft.

[@فارسليبورد-ك8و]

فكره حلوه ❤❤❤❤❤

[@Arturo4586]

There is no sound barrier. Accelerating past Mach one is not detectable except by observing the Mach indicator . In a rocket nozzle the throat id the location of transition from subsonic flow to high super sonic flow without any shock whatsoever.

[@Arturo4586]

When expressing the linearized drag equations by Prandtl Glauert and Ackeret, a singularity shows: 1/√(1-M²) and 1/√(M²-1) Wind tunnel tests conducted at the ETH Zürich, the transsonic transition is smooth. But other than a weak shock wave there is certainly no barrier, a common popular misstatement.

[@stocky9218]

It’s the point at which the plane is travelling faster than air can compress which causes the shockwaves (which cause the sonic boom) I don’t think it’s unreasonable to call it a barrier. A plane unoptimised for supersonic flight will certainly experience this “barrier” as its control surfaces will become unstable

[@Duality-Mode]

Great to see what these young men are capable of creating aand building.

[@arrjay2410]

Fascinating. I hope I get to see where this goes.

[@supabursche]

Why is it a good idea?!? Because it solves many issues with current engines in such a simple way that i go like "Daaa, why has nobody thought of that before🤦"

[@RalphEllis]

Turbo electric does not work. Look up the Rolls Royce EfanX. Rolls completely failed, because this set up is too complex, too heavy, and too hot. How on earth can this be lighter than a simple shaft drive? It is nuts. R

[@markBalentine123567]

because the fan is cooling the compressor which prevents the overheating which it will not be too hot because of the fan

[@lhah7616]

Jet toasted marshamallow.... hehehe

[@wyw876]

A wonderful answer to a question we never thought to ask!

[@SP-ny1fk]

Soon we will have this marshmallow toaster in every American home. Why travel at all?

[@pabf2745]

Starship in 0.5 hours, DONE

[@StephenMinervino]

Starship is great and an amazing rocket... not exactly efficient mass ground-ground transit though.

[@villarroelxD]

@@StephenMinervino Starship is literally a space diesel cargo truck

[@mikeconnery4652]

Interesting concept

[@philipdrew10]

Its MY vortex rocket entirely designed by myself

[@l0I0I0I0]

Nice!

[@Alexander-pk1tu]

its a bit obvious that this idea will not go anywhere anytime soon. You omit 2 crucial factors. First. That concord was decommissioned due to the high fuel prices. Air resistance increases with the square of the speed. No matter how many savings you have when idling, you are not going to offset with the fuel burn at mach 2. Second, airplane engines take decades to develop and certify, with very incremental changes to existing engines taking decades and billions of dollars to develop. See the LEAP engine family, or the RR, geared turbo fans. There is no way a small startup with get anywhere anytime soon! Best case scenario they get bought by a big company.

[@TheAutumnNetwork]

They could make the engines for Boom and their push towards bringing back supersonic travel. Could absolutely see that happening.

[@debracisneroshhp2827]

@Alexander-pk1tu, Yes__just listen to his "Freudian slip" at timestamp 3:44 - 3:47(3:46, to be exact). 😳😬😋

[@Bobsry16]

​I agree, This other start up Mayman Aerospace, Whisper Aero and Boom would be great collaborators. If they can achieve the goal of small/medium sized jet craft less expensive than the available options, cruising at up too 500 mph or mach 1.7, with the benefits of electric assistance and cryogenic natural gas, that's a big win in a compact efficient package! Mayman does VTOL with small conventional jets @@TheAutumnNetwork

[@hmbro3236]

It actually increases with the cube of velocity above the speed of sound due to the emergence of pressure drag.

[@vigamortezadventures7972]

I’m here for the taste treat, you spoke of.

[@TheAceTroubleshooter]

Hey Ian could I just like.. Hangout with you sometime...? Do your laundry maybe? xD

[@kraftwurx_Aviation]

So it's an electric ducted fan, then you inject fuel into a combuster and blow it out the back in afterburner mode. The third stage is supposedly a ram jet? How do you recharge because you need batteries to turn the motor. Are they claiming they will free spin the compressor wheel while in ramjet mode?

[@Neoprenesiren]

Planes already have vast complex electrical systems.

[@Blanc2020]

I am an aerospace engineer. This video sounds like vaporware to me. I don’t know if they are hiding the real innovation or if “adding an electric motor, bro” is the innovation. I don’t see how using batteries, using methane, or having an electric compressor improves the existing system. If they are converting mechanical energy into electric and then back into mechanical energy, that creates a bunch of losses. Also, after-burners are typically very inefficient and it sounds like their system works like that and not like the SR-71 😂. They also never explain how they solve the heating problem of the engine. They talk about all the issues of supersonic flight, and they supposedly have solved them all, but they didn’t really explain how. I would have to know more to call this BS, but if I was an investor in this company, I would ask many questions.

[@kraftwurx_Aviation]

@Blanc2020 I'm an engineer too, not Aero but It doesn't make any sense to me. Vaporware to get investors money i think.

[@loak1010]

US-based Venus Aerospace is currently developing a jet engine that it claims could go as fast as Mach 6

[@ElmwoodAl]

I'm confused. Compressed Natural gas is worse for the environment than typical jet fuel, or kerosene. While true, methane does burn more efficiently, it is 28 times higher at trapping heat than kerosene, there are large amounts of waste during extraction, storage and transportation. Not to mention more energy is used in every process.

[@Baerchenization]

Nobody wants to extract methane, they want to synthesise it.

[@nicknevco215]

Maybe they mean the algae version not drilling one

[@ARepublicIfYouCanKeepIt]

I believe that you're missing two key points: 1. The methane is synthesized by combining atmospheric carbon dioxide with electrolytically produced hydrogen. 2. The methane is combusted, not emitted. In this way, the CO₂ that's emitted when the methane is burned isn't added to the atmosphere just as icebergs melting don't raise sea level. The other byproduct of methane combustion is H₂O.

[@TheAceTroubleshooter]

The methane itself is the number you are thinking of, when methane is burned it turns into co2 and water.

[@jamisonleckenby2355]

Methane escaping into the atmosphere is worse than CO2 as a greenhouse gas. Burnt Methane turns into CO2 and Water which are much better for the environment (relatively speaking) than Kerosene which emits CO2, Nitrogen Oxides, Sulfur Dioxide, and other harmful chemicals. Methane gets emitted into the atmosphere when it leaks out unburnt during the extraction, storage, transportation and the general production phases. Plus, if the Methane is produced by extracting CO2 out of the air rather than extracting it from the ground the net CO2 and general greenhouse gas emissions should stay neutral as long as the Methane is completely burnt.

[@LattManthier]

I been talking about this for year's

[@spectrumboss6696]

When you arrive, I hope a half million dollar 5-axis machine in the office is the norm Sign me up

[@loak1010]

Just a flash thought from a non engineering layperson...The M3 mention in this video means what? This is a testing model bolted down on concrete pad, as a stationary object, how to est. / measures the M3?

[@A-T-M-]

10:45 How curious that the exhaust looks like a RDE (rotary detonation engine)

[@TheAceTroubleshooter]

And that "nozzle" they were talkin about lol. Guess most peeps just dont know what an aerospike is? ¯\_(ツ)_/¯

[@A-T-M-]

@TheAceTroubleshooter I said it because of its shape and the sound it made.

[@l0I0I0I0]

Can the engine be used to produce electricity?

[@CHRIS-ELID]

Yes it's a full set Generator set by design.

[@Mallchad]

Yes, all aircraft engines produce electricity by design to supply the aircraft with power. Only the aircraft, if you're thinking of ground use its pointless because you're wasting energy by dumping it off the side and not allowing it to build higher pressure.

[@l0I0I0I0]

I've seem the AT-3 engines on the falcons, Guardian jets used for power generation. I figured we could do the same here with scaleability.

[@Black_Sun_Dark_Star]

As much as how amazing this is, China is purportedly already prototyping a hypersonic passenger plane in recent days.

[@nicktechnubyte1184]

Nice 👍

[@MadsterV]

I don't want to imagine the kind of torture airports are going to put us through before boarding one of these

[@MrIjailbreakYou]

Those headphone you advertised, why not using they brain and reflect on it rather than providing all this data into the net

[@ADITYAVERMA-gi2wf]

What about batteries/power source?

[@ARepublicIfYouCanKeepIt]

Methane-powered turbine generator produces the needed electrical energy.

[@TheAceTroubleshooter]

@@ARepublicIfYouCanKeepIt Its a bot, ignore it.

[@jeancote1488]

Take the time to watch the video and you will have your answer. Watch it two (2) time if needed.

[@lowfro02]

It's like a Fisker

[@nicknevco215]

Nozzle look like rocket design

[@TheAceTroubleshooter]

Aerospike meng

[@jigsolanki2582]

I'm cetainly in favor of shortening travel times. While this is signficant innvoation in jet engine technology one must factor in the g-force for passengers. There needs to be innovation in reducing the g-force as the jet speeds increase.

[@evanbarnes9984]

I would honestly much prefer SF to LA in 3 hours on rail so I could visit my nieces more easily.

[@astro1322]

So are they using only one motor to spin the compressor. Or are they using multiple electric motors to spin different parts of the compressor?

[@cyberista]

Do supersonic exhaust gases guarantee supersonic airplane speeds? I wouldn't think so necessarily. That could do with some more explanation.

[@zipityzap7675]

@@cyberista no they are only measuring the exhaust speed. All jet engines' exhaust speed are super sonic. Yeah, they are so vague about the test.

[@debracisneroshhp2827]

​@@zipityzap7675, Vague for very good reasons. 😋

[@LiborTinka]

Yes - travel speed will only approach exhaust speed in the absence of friction (e.g. in a vacuum of space). The engine also have to maintain that impulse for long enough to get the entire mass of an aircraft (plus fuel) to that speed.

[@TheAceTroubleshooter]

He only mentioned the exhaust speed the dual operation, didn't mention any numbers on the final stage. Scramjet mode essentially. As astute as the dude is I am sure he has run his numbers, many many times.

[@Quatuux]

I don't think that it's more fuel efficient. A 90+% efficiency turbine is being replaced by a gas turbine that has at most a 55% efficiency, which then loses energy in the alternator, electronics, batteries and finally the electric motors that drive the compressor? Am I correct or did I miss something? About being able to fly at both subsonic, supersonic and hypersonic speeds, you just need a turbojet and a dual-mode ramjet in two different ducts. Check the SR-72 concept from Lockheed.

[@ericswain4177]

So who is funding this project? Great idea, The affordable part is a pipe dream many brilliant people have come up with wonderful innovations, ideas, and inventions to make something or life more affordable, easier, etc.. but sadly this is rarely the case. Good luck guys.

[@i3_13]

They didn't mention the thrust. It would be nice if we could compare to the raptor.

[@matthews2018ify]

Finally yessss!!!!

[@Turksarama]

I kind of disagree with the closing statement of this video. Travel time hasn't been the primary blocker of international travel for decades, it is cost and security. A faster plane wouldn't make the world smaller as much as cheaper flights and lowering passport restrictions would.

[@maramhamoud-i7r]

انا اختك اليمنيه واعتبرني اختك والله ماتكلمت الا من جوع ومن ضيق الحال انا وكامل اسرتي تشردنا من بيوتنا بَسَبَبَ الَحَرَبَ نَحَنَ فَيَ حَالَهَ لَايَعَلَمَ بَهَا الَا الَلَهَ حَسَبَنَا الَلَهَ وًّنَعَمَ الَوكيَلَ فَيَ مَنَ اوًّصَلَنَا الَى هَاذا الَحَالَ وًّالَلَهَ الَعَظَيَمَ مَا كتَبَتَ هَذا الَمَنَاشَدَهَ غَيَرَ مَنَ الَضَيَقَ وّالَفَقَر يَاعَالَمَ حَسَوّا فَيَنَا ارَجَوّكمَ وّالَلَهَ الَعَظَيَمَ رَبَ الَعَرَشَ الَعَظَيَمَ انَه الَاكلَ مَا فَيَ عَنَدَيَ بَالَبَيَتَ وًّالَلَهَ يَا اخَوّانَيَ انَهَ اخَوًّنَيَ بَقَعَدَوًّ بَالَيَوًّمَيَنَ مَافَى اكلَ وًّالَلَهَ وًّضَعَنَا كثَيَرَ صَعَبَ نَحَنَ 4 نَفَرَ دَاخَلَ الَبَيَتَ وًّابَيَ مَتَوًّفَيَ وًّلَا يَوًّجَدَ مَنَ يَعَوًّلَ عَلَيَنَا وًّسَاكنَيَنَ فَيَ بَيَتَ اجَارَ لَانَسَتَطَيَعَ دَفَعَ الَاجَارَ الَلَيَ ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' اخي اول كلامي انا اقسم بالله على كتاب الله اني لااكذب عليك ولا انصب ولا احتال اني بنت يمنيه نازحين انا واسرتي بيننا ایت الشهرب 20 الف يمني والان علينا 60 الف حق 3 شهور وصاحب البيت من الناس الي ماترحم والله يا اخي انه يجي كل يوم يبهدلنا ويتكلم علينا ويريد من البيت للشارع لانناماقدرنا ندفعله الأجار شافونا الجيران نبكي ورجعو تكلمو الجيران ومهلنالاخره الأسبوع معادفعنا له حلف يمين بالله هذا بيخرجنا إلى الشارع رحمه واحنا. بلادنا بسبب هذا الحرب ولانجد قوت يومنا وعايشين اناوامي واخوتي سفار والدنا متوفي الله يرحمه ومامعنا أحد في هذا الدنيا جاانبنا في هذه الظروف القاسيه اخوتي الصغار خرجو للشارع وشافو الجيران ياكلو واوقفو عند بابهم لجل يعطوهم ولو كسره خبز والله الذي له ملك السموات والارض انهم غلفو الباب وطردوهم ورجعو یبکو ایموتو من الجوع ما احد رحمهم وعطلة ردها لقمت عیش والان لوما احدنا ساعدنا في إيكيلو دقيق اقسم بالله انموت من الجوع فيا اخي انا دخيله على الله ثم عليك واريد منك المساعده لوجه الله انشدك بالله تحب الخير واتساعدني ولو ب 500 ريال يمني مع تراسلي واتساب على هذا الرقم 00967715721307 وتطلب اسم بطاقتي وترسلي ولاتتاخر وايعوضك الله بكل خير اخواني سغار شوف كيف حالتهم وساعدنا وأنقذنا قبل أن يطردونا في الشارع تتبهدل أو نموت من الجوع وانا واسرتي نسالك بالله لولك مقدره على مساعد لاتتاخر علينا وجزاك الله خير… ،،،.»)/~«(؛؛؛؛؛؛؛؛؛؛؛؛؛؛؛؛؛؛؛؛؛؛؛/////؛؛؛؛؛؛؛٪٪٪٪٪٪٪٪٪٪٪٪...،.،.،.،.،.،.،.،..،.،.،.،،.،.،.،.،.،.،.،.،.،.،.،.،.،.،.،.،.،..،،..،.،،.،.،.،.،..،،.،.،.،.،.،.،.،.،.،.،...............،.....،،.،.،.،.،.،.،.،.،..،،..،.،.،.،،.،.،..،،..،،.،.،.،.،.،.،.،.،..،،.،.،.،.،.،.،.،.،.،.،.،.،.،.،.،.،.،.،.،.،.،.،.،..............،.،.،.،.،.،.،.،..،

[@senorowlando]

Why not use combustion exhaust from the turbines to also power electric generators? The stators and rotors within the middle of the turbine could be cooled off from bypass airflow which in turn charges up a bank of super capacitors that power the leading electric motors. A multi staged hybrid gas / electric turbine if made properly could pulse detonate jet fuel and greatly extend both speed and range plus boost fuel efficiency.

[@MadsterV]

because at high speed you don't need the electricity anymore. The generator itself would be wasting energy by being in the way.

[@Ripsticker45]

I thought methane contributed the most towards climate change.

[@ARepublicIfYouCanKeepIt]

1. The methane is synthesized by combining atmospheric carbon dioxide with electrolytically produced hydrogen. 2. The methane is combusted, not emitted. In this way, the CO₂ that's emitted when the methane is burned isn't added to the atmosphere just as icebergs melting don't raise sea level. The other byproduct of methane combustion is H₂O.

[@myperspective5091]

Now they can talk to Whisper Aero to make their engine quieter.

[@jeffreywenger281]

There is still limited takeoff and landing capacity to deal with. More people traveling in smaller planes can't be accommodated without a vast increase in runway capacity. While there might be more diffusion in where people want to go, I doubt it will be enough. Large aircraft will still rule.

[@debracisneroshhp2827]

Not necessarily__they could utilize take-off and landing techniques of hovercraft. 😋😁

[@NickFromHardReset]

That’s definitely a problem! However, you might be surprised to see how many smaller airports there are already. There are large numbers of under utilized airports because they don’t accommodate larger planes.

[@TheAceTroubleshooter]

Hes presenting a paradigm shift guy, where's your contribution?

[@NickFromHardReset]

(my contribution was the marshmallows)

[@TheSuperGSS]

Jet

[@Eyam_Druggs]

6:51 toast marshmallows🔥and flys🪰?🤔

[@frederickstirnkorb3094]

Thinking to small that would make a space plane possible.

[@johnslugger]

*This is how Most German tanks worked in WWII Fuel - Gen - Electric.*

[@guytech7310]

Methane for commerical aircraft is a no-no. basically you are building an hindenburg. The reason why Planes use kerosene is that harder to ignite than methane or gasoline. Issue is with methane is that if there is a gas leak, all it takes is a spark to set it off. I have doubt this is economical, since you need a separate turbine to run the generator, which will add a lot more weight, and if that single gas turbine fails all the engines running off it will also failure: ie single point of failure. Maybe it can be changed such that the the generator is incorporated in the engine: electric driven compressor -> combustion -> Exhaust turbine powered generator. But then your adding a lot of complexity back into the engine design. on a scale of 1 to 10 for this to be an economical\commercial success I would put this at 1.

[@HotSocket]

day trip to portugal

[@ereceeme]

somwhere Zefram Cochrane is being born

[@erikitter6773]

If someone tells you to travell really fast in the civilian world, just remember that we had the technology 50 years ago. It is just not worth it. We have figured out really good compromises, and lately added light speed in fibre optics for stuff only needing informational presence instead of physical travel. It is even the very first scene in the video, just not keeping the brain switched on. In civilian use there is no justification to leave well established optimizations (compromises optimizing multivariant problems) for speed records. And no, this is not making the case that we'll never need more than horses. It is about having well established large scale solutions for our physics envelop. Optimice high speed trains, and much more importantly work politics to get the proper rails built instead of wasting insane amounts of energy in construction and operation. It does not really matter that it is electric. It still converts useable energy in waste heat. But also, no lets add an afterburn. What is the efficiency of that combination?

[@Wookiemonsterfreak]

Bahaha these things often boast cheap and easy. While it might be cheap for the service provider, it won’t be cheap for the customer.

[@anonym9323]

No it is not you have a weigh better efficiency if you you directly have the engine makes no sense to me

[@EddyKorgo]

hehe if the front compressor is overpowered by airprassure pushing in, just turn the e-motor into a generator

[@rayjay848]

Smaller airplanes would be nice but that doesn’t fix the airways.

[@ernestestrada2461]

Can they also run the original turbine engine on methane because you don't want to carry two different fuels on the aircraft.

[@JinKee]

Can you use the battery and electric motor to pump both fuel and oxidiser from cryogenic tanks? That could mean you’re air breathing from earth to the stratosphere, and then single stage to orbit from there.

[@HHHH-p1b4l]

The rocket equation is not that forgiving...

[@JinKee]

@ i guess we need those small modular nuclear reactors to come into production to get the energy density we need

[@0range.]

they should make one-seater jets and sell it for cheap.

[@FlintStone-c3s]

If Elon wanted to get into Jets......

[@karthikmukund9526]

Soo, its a turbojet without the turbine, but an electric fan instead?

[@keeshenarul4554]

Where is the Kilowatts of electricity coming from once the engine takes flight??

[@tonymammal7430]

Is this the guy that did the voice over for Mythbusters?

[@NickFromHardReset]

That’s very flattering, but no! I’m not in any way affiliated with Mythbusters, except that I am a big fan of the show! However, if the folks at Adam Savage’s @tested channel ever want to do a collab, they should holla at me!!

[@tonymammal7430]

@@NickFromHardReset Are you telling me, that you have an amazing voice but aren't a Voice over actor? Thats crazy.

[@NickFromHardReset]

@ I mean … I’m a voiceover actor for this! That’s pretty much all I have time for, except that occasionally I narrate the daily activities of my wife and child, who find it annoying.

[@Anothermouse]

Skill and smarts, yet parroting the co2 malarkey.

[@jasonneugebauer5310]

I wish them the best. But I'm not going to hold my breath on this one. Certainly small electric jets are good for RC and tech is making it afordable. But scaling something that works great for 15 minutes on a charge and a tank of fuel to a real aircraft that can fly supersonic... Not likely to happen any time soon. Biggest concern motor size/ power/generator/power cabling Next storing 180 tons of LNG as it warms and bubbles. I feal like my chainsaw has more power than the test engine. Google says a commercial jet engine has ~30,000 horsepower A commercial jet can fly for 6 - 18 hours. A Tesla plad has 1,020 horsepower for 15 minutes at full power. Tesla's have state of the art motors. 50-70% of a jet engines power is used to drive the compression. That means you need a turbine generator that can produce 30,000 horsepower to run the conpressors for two engines. Each 1 horsepower requires 746 Watts of power X 30,000 horsepower required for engine compressors = 22.4 megawatts Equil to 59 Tesla Plads worth of conpressor motors. Looking at 22 megawatt GE natural gas generator I see they are 38% efficient. Meaning you actually need 59 megawatts worth of fuel to run the generator. When the generator is running at 20% load efficiency drops to 20%. If the airplane could reach hypersonic flight speed the motors would melt but you could fly without them until you slow down. Maby there is an advantage in having a turbine generator running these motor powered engine. But considering the generator doesn't operate very efficiently at low load I'm not sure how much gain you can get from running the fan/conpressors at lower power.

[@angellestat2730]

not using liquid hydrogen is a wasted oportunity, with a small fuel cell to power the electric engine and then using hydrogen in the combustion part and maybe taking advantage of the ultra cold liquid hydrogen to cool the parts and increase efficiency and maybe using a super conductive electric motor. Of course, those are a lot of extra certifications that would make the business extra risky.

[@CHRIS-ELID]

Sure, superconductor material are expensive unless you make for train for more 400 people

[@635574]

Everything about hydrogen is a mistake. Fools fuel

[@ARepublicIfYouCanKeepIt]

Liquid hydrogen. Fuel cells. Super conductivity. Literally none of this has been integrated terrestrially, and you write off Astro Mechanica's approach? Really? As someone with a background in nuclear marine propulsion, and is participating in efforts to electrify heavy-duty vocational trucking, my take on Astro Mechanica's approach is that it's brilliant in its simplicity. A methane-powered turbine generator produces electricity at 10% of the cost of jet fuel. Electrically driven compressors provide thrust supporting economical ground operation, as well as feed compressed air to combustors to combust methane (again at 10% of the cost of jet fuel) for subsonic flight on the way to supersonic cruise when the electrically driven compressors aren't even required. Yeah, let's not even bother because liquid hydrogen is the way to go.

[@TheAceTroubleshooter]

@@ARepublicIfYouCanKeepIt Calm your tits dude, they're just wishfully thinking in the right direction.

[@dianapennepacker6854]

Storing and dealing with liquid hydrogen is a huge huge pain.

[@tonycosta3302]

Methane is a gas and needs either heavy pressure tanks or subzero cooling. How is that practical for an airplane?

[@vigamortezadventures7972]

Try to compress plasma.

[@seandepagnier]

I for one do not want people traveling that fast. Already air travel has a negative effect by destroying culture and ruining amazing places, consider bali.

[@jaybow2us]

It's an aerospike

[@leozendo3500]

Battery?

[@unclegeorge7845]

Very little hydrogen is carbon neutral.

[@Helloverlord]

6:33 this is not even a jet engine but turbo fan.

[@zipityzap7675]

I love the idea of looking in different point of view but I think there would be problems with this kind of engines. first of all the generator needed for the electric compressor would take up the space needed for fuel. Speaking of Fuel, Methane is worst than carbon dioxide since it is a potent green house gas 80 times more. and The extra components will weigh the engine down more needing more fuel to lift the whole plane. And come on a single compressor, that cant reach mach 1.

[@Mallchad]

- I don't think it's a big deal having the generator there, most modern aircraft need a standalone power unit or at least a dynamo hooked up to the engine - I'm pretty super the supersonic concept ditched the standalone generator in factor of an fuel-electric engine that will probably be hooked up to a dynamo, like all aircraft - Methane being a potent greenhouse gas does not matter since, A, when you burn it properly its no longer methane, its CO2 H20 and trace other things, B, it participates in the methane cycle and gets broken down after around 10 years - Supersonic Single compressor... Depends, what are the operating conditions of your engine? Ramjets don't even have a turbine compressor, just ramps. Both ram engine tech and aerospike (rocket) tech were deomonstrated here. Most actually >Mach3 supersonic aircraft have the majority of their compression done by a single spike inlet

[@zipityzap7675]

@Mallchad most jet engine use electric motor at the inlet to spin the turbine, using the whole generator is just wasteful in all aspects, more complexity, you wouldnt want anything going wrong while you are soaring about 30,000 feets above the ground, And the methane ,with a lower ignition temperature, I believe a lighting would bring the whole plane down, sure it might probably be better than Aviation fuel, but they are using a ramjet concept, there will be more significant loss than it being combusted inside the chambers. Methane will leak, mind you, in the sky, closer to the ozone layer. Co2 might not be a problem for the ozone but the methane though it will punch more and more holes.( Assuming it went large scale which I doubt) And the weight though, with that size and they still can't reach 30% of the way to Mach 1. They other might not be a problem like you said but the weight is definitely going to be one. And as I said they are using only a single compressor for their engine in this video and injecting fuel into the path. Which is just an after burner with a single compressor without a thrust from a combustion like a regular turbo jets. For ramjets to be efficient, they will have to reach supersonic speed, A single compressor and an after burner cant reach it and by the time the engine reach the required speed the fuel will run out cuz the weight and the space problem. There is a solution for ramjets to work though,...is to use turbo jets or rockengine.There is another company who use the combination of ramjets and turbo jets, I forget the names though but the tests are awesome.

[@zipityzap7675]

@@Mallchad oh and If you know about a jet engine I want to discuss a type of engine I have in mind, I want some constructive criticism.

[@Mallchad]

​@@zipityzap7675 Typically you'd be right about methane being highly combustible and unsafe but they are using LNG, liquified methane, which is completely inflammable. Which begs the question how the dickens they plan to use it as fuel (consistently). The payoff however is a fuel that's not prone to coking. The ramjet-like approach I don't understand what they're doing, and they can't test it without a supersonic wind tunnel anyway. Also what's up with the airspike? I don't know what ramjet-turbojet combo you're thinking of but the SR-71 was powered by the Pratt & Whitney J58 which could transition into a high-bypass ramjet mode. I don't know of a single other service aircraft that had this ability. I'm not really an expert on engines I jut know a few things.

[@ARepublicIfYouCanKeepIt]

1. The methane is synthesized by combining atmospheric carbon dioxide with electrolytically produced hydrogen. 2. The methane is combusted, not emitted. In this way, the CO₂ that's emitted when the methane is burned isn't added to the atmosphere just as icebergs melting don't raise sea level. The other byproduct of methane combustion is H₂O.

[@belamizsak161]

what is the point?

[@ereceeme]

I feel that elon will be knocking soon

[@manuelofosu]

Like, subscribe and turn on post notification.

[@NEWGENPIC]

why not build it bigger?

[@patrickday4206]

It's just a turbo charger

[@vadimlapshin7032]

I will suggest you to join forces with Elon Musk, i think he will be interested in your motors to Boeng.

[@mysterioanonymous3206]

I mean yeah... But then, where's the fun at then? A journey has got to be adventurous to matter. Difficult. Strenuous. If it's too easy you won't appreciate it, making the entire exercise pointless.

[@MadsterV]

you must work at TSA

[@rickybailey7123]

So to invent stuff new, you got to make a fuel for it to burn. I mean, come on dude, I did see how you make the fuel but that's not a normal level of inventors, that's a whole corporation behind that With all engineers. And it's still gonna get turned down.As good as that is.

[@atomicmonkeysquad]

I really hope you make it work and have the greatest success. I could not care less about the "carbon neutral" nonsense and it saddens me that you've apparently bought into THAT particular climate fraud. Still, the best of success to you all!

[@VikSkiKat]

Nahhh...

[@jamesobrien4087]

OK that's the hype. Didn't address where all the electricity comes from to power the fan electric motors. mmmm.....I'd like to see the energy equations please. Would they really be less energy used per kilowatt of thrust generated. Also engineering a "blisk" as one unit in a CNC is probably an "engineering mistake". They must know that High power fan blades in jet aircraft are separately engineered from appropriate materials.

[@NickFromHardReset]

Hey! Actually the question of where the electricity comes from is addressed at about 4:50 - they’re using a turbine engine that burns LNG to run a generator. I can’t answer your questions about the blisks and how they’re made, but you should reach out to them with specific questions!

[@AlphaHealthYT]

omg again the "thiiiiiiis"?!

[@NickFromHardReset]

Thiiiiis is how I talk! I can’t help it!!

[@tofubeanz]

The exhaust panel modes from self induced vibrations 🤤 kzbin.info/www/bejne/sKiwY5lsntd5qZYsi=L-dwzjGvYlylclzi&t=16m11s

[@jondonron]

how do they power the E motor

[@somenygaard]

@@jondonron According to the video it’s done with a turbine generator

[@Mallchad]

I don't think they specified but they mentioned their original design was a seperate LNG-gas generator. Which would likely mean their combo "turboelectric jet engine" will have a dynamo attached to the driveshaft in the jet section of the engine, ie generating power from burning fuel.

[@ARepublicIfYouCanKeepIt]

Methane-powered turbine generator.

[@TheAceTroubleshooter]

....did you people not watch the damn video wtf?

[@frazajay]

Entirely Philip Drews design. Entirely stolen. Entirely disgusting behaviour from such a big company