Building the World's 1st Hypersonic Airplane | Hermeus

Later this year Hermeus is aiming to take their first subsonic flight with the goal of hitting Mach 2.5 next year. For Episode 43 of S³ we got an inside look at how they're building 1 plane a year to pull it off.
Startup: www.hermeus.com/
0:00 Flight
0:43 Gotta go fast
2:30 Building engines
4:11 Turbojet & Ramjet
7:04 1 Plane/Year
10:40 Next: First Flight
Blog ✍️
saturdaystartups.beehiiv.com/
Socials 📱
/ jasonjoyride 🐦 | / jasonjoyride 📸 | / jason-carman-63b384199 👨🏼‍💼 | www.jasoncarman.com/s3 💻

[@BPSspace]

S3 On TOP 🔝🆙

[@marcusrauch4223]

Hi Joe

[@ahmedalshalchi]

You are much more performance than those ... You are mostly an individual task force while those are a company with bigger budget ....

[@JackOHaraEngineering]

@@ahmedalshalchiBlud is waffling

[@ahmedalshalchi]

@@JackOHaraEngineering Blud ?!... What do you mean ?

[@TyphoonUSSR]

TOP: *Mig-31BM - 3400 km/h*

[@jackriminton7959]

Another super high quality video. No dumbing down, great editing, great storytelling

[@marsrocket]

Are you kidding? They spent 12 minutes communicating about 2 minutes worth of information. And they started off by saying “people always ask why hypersonic?” And then never answer the question.

[@jackriminton7959]

@@marsrocket maybe you need to find another channel my friend

[@anthonyb5279]

Its all baffle them with bullshit. They are 100% full of shit.

[@RubenMyburgh-gw2ww]

Its not fake

[@anthonyb5279]

@@RubenMyburgh-gw2ww Yes it is. Its a scam.

[@psychomachyy]

Guy who has HERMEUS hoodie is so well spoken and for someone like me who's first language isn't English and haven't learnt at school im first place and listening him to explain all stuff made me happy. Wish you all the best guys , well done!

[@dpsamu2000]

The SR71 was a turbo bypass ramjet. When it got to ramjet speed the turbine was bypassed. The secret sauce was to take the supersonic flow down to subsonic so it could mix with fuel. Supersonic flow is like a liquid flowing. It takes longer to mix with fuel. Gaseous subsonic air mixes faster.

[@MyHWYBro]

Supersonic air is also extremely turbulent and inconsistent in flow rate. Having that steady, laminar flow of subsonic air is crucial for the engine's intake.

[@robertcox14]

Yeah, I wondered if "time" for fuel to ignite and burn might be a borderline that you could only cross by having some kind of "super fast" burn. Hypersonic seems to get past that, using the "ram" of high speed air - does one part fuel "blow and go" in less time than the speed of normal ignition?

[@Rookies103]

Darpa, skunk works don't care ​@@MyHWYBro

[@dpsamu2000]

@@robertcox14 It's about time for fuel to mix with air. In the compressed supersonic ram air it's trying to mix liquids. In air compressed not to supersonic flow it's still gaseous, and mixes with aerosolized liquid fuel faster.

[@Ra-wr2kf]

This screams you just watched a KZbin video on it with no engineering background. Turbulent flow allows for better mixing and ramjets are more propulsively efficient than any other engine please do research

[@banzaiib]

2:03 - the J58 begs to differ... and technically all modern, supersonic fighters harness, to some extent, the compression from shockwaves generated in the intake. Not to the "ram-jet" level where the compressor stages are fully bypassed, like the J58, but they do benefit from it. Good luck guys. Can't wait to see it haul butt!

[@jeffk412]

Was gonna say something similar. A bit cocky, but I get that swagger comes with the territory. Maybe actually fly something first though...

[@Rjjamess]

Yea I was fine until he said what they were doing hasn't been done before haha Confusion level: visible

[@QuixEnd]

Who _IS_ this guy?! Getting the wildest interviews and docs ive seen in ages. So cool

[@kinfongyeung5400]

x15 is not a ramjet, its a rocket propelled. many ramjet equipped airplane/missile are rocket boosted instead of dropped by an aircraft since that make little sense (since as he said it, the craft need to get to ~ mach3 to start the engine). In fact SR71 has literally a turbo-ram jet design so I don't understand why he said no plane has done that before.

[@s3_build]

Yeaaaahhh I super messed up on the BRoll here... sorry guys :(

[@prodabber0222]

@@s3_build no problem we all make mistakes :)

[@kinfongyeung5400]

@@s3_build don’t worry we all make mistakes. The important thing is to recognize the mistakes and learn from it.

[@mrhassell]

Hence why its called the X-15 Hypersonic Rocket Plane.

[@motorbikesnbeers]

@@s3_buildmeant to be high up in this company and you don’t know the difference between a rocket and a jet… hmmm

[@SoloRenegade]

2:00 false SR-71, A-12, YF-12

[@icgz711]

Literally came here to comment the exact same thing lol… sr71 was doing this like 60 years ago

[@volkerpaulwilhelm1482]

🤓‼

[@gregkirby9059]

BRO this

[@orangeade3533]

The SR-71 bridged the gap between supersonic and hypersonic decades ago. Definitely has been done before lol

[@yaboikindabored9831]

Damn bro you're smarter than everyone on the video, how amazing!

[@orangeade3533]

@@yaboikindabored9831 it's nothing personal buddy 😂

[@breadboi1248]

hypersonic is mach 5+ buster

[@rocksparadox]

@@yaboikindabored9831 'Damn bro you're smarter than everyone on the video, how amazing!'' Dyckryding the makers of a video is far from original or beneficial to an honest discussion, oh sorry, used some big words there.

[@yaboikindabored9831]

@@rocksparadox Who said I was glazing the makers (Also it's one guy that's that the maker)? I'm glazing the engineers and scientist there

[@bensmith7536]

Aviation needs much more like this.... the way it used to be. I wish them all the best.

[@marvelthespacewing5562]

LETS GOOO, I BEEN WAITING FOR THIS!!!

[@InfoSopher]

Love it! Really brightened my day, thank you!

[@WHURobKip]

Very excited for this!! Good luck chaps

[@manjitpathak3041]

man, these videos are a breath of fresh air.

[@r9337s]

Looking forward to seeing your future success's!

[@Roman-hx3qj]

Give it a whirl guys keep going. Glad to see young people push the edge of aviation technology forward!

[@gabrielfernandez145]

Actually the fastest fighter jet in service is the MIG-31BM flying at mach 2.83

[@stevehicks8944]

Yep, just before the wing leading edges start to melt and you destroy the engines. Meanwhile, the SR-71 has just flown at Mach 3.0 for the last several hours while its crew flips the MiG-31 the bird….

[@antonallen8047]

​@@stevehicks8944um I think that's retired

[@anormalphantom130]

@@antonallen8047 They've said the SR-71 has been retired like 37 times by now, and they still pull it back out to use it.

[@breadboi1248]

that's an interceptor🤓

[@imGeistevereint]

@@breadboi1248 thats just a role for a fighter jet lmao

[@MattWaller04]

The enthusiasm is there for sure

[@basselm804]

Great little documentary... massively well done.

[@thomastommygun8487]

Excited to tune in to watch the Big Bang. Following can’t wait.

[@rkolagatla]

You people look confident and all the best.

[@jangel3942]

Didn’t the SR-71 Blackbird also had like a two stage engine setup?

[@TheAlfredoWay]

I love where this is going

[@deepaklenka5813]

always love Jason with his deep tech videos.

[@ariadnelecoutre9453]

Nice Vid! Thanks!

[@F1fan007]

So glad to see you are pushing the envelope. Like you said, aircraft progress has stagnated to almost nothing. Can’t wait to see exciting times ahead with hypersonic. We need major innovations and breakthroughs like we haven’t seen in years. Great video!!

[@dinger40]

Fastest operational aircraft today is the MIG 31 not the F15 ( M2.8 v 2.5 ).The world does exist outside the USA.

[@fteoOpty64]

So what does the MIG31 do for Vmax?? SR71 has done Mach 4.5 according to it's pilot. Going over NK with multiple missile lock on it. But none can catch it!.

[@dinger40]

@@fteoOpty64 SR71/YF12 is not operational now and hasn't been for years.

[@_cyantist]

considering 3.3 is the operational limit of the SR-71 i highly highly doubt it did 4.5, that pilot is talking out his ass

[@jonpetter8921]

The best aircraft engineer and innovators has been from Europe: People that build Concorde, A380 etc.....

[@jonpetter8921]

@@dlmdee Russia, China even the US have been copying from Europe: UK, Germany France First jets, first supersonic jets, first space aircraft were european inventions.

[@sciencehub5197]

Wow, this video was well edited!

[@richardurwin]

Awesome!

[@masterchafer]

Lots of startup jargon with a lot of talk and not much said

[@stevefink6000]

Larping hard. I wouldnt invest a dime in this one.

[@Henrik.S8]

They're confident but let's see the damn thing fly first.

[@kiwiadventures3773]

Im fairly sure that the aircraft skin shouldn’t have a aerodynamic transition as in 0:47

[@Chooch8877]

thanks lol

[@Porter92]

@@stevefink6000lol yall know anything or just making up shit?

[@Humuku]

Well done! Good luck with your channel.

[@Eclipse-lw4vf]

Sounds pretty cool. Will be interesting Tj see

[@schalkspies8189]

Top drawer, I'm along for the ride..😊

[@FBAExapt]

This is crazy!!!

[@chrislatour758]

No pilot, no airplane pal. U just built a fast UAV

[@nooahchannel]

Amazing.

[@BrunoDeMarques]

Bless you guys and your investors for pushing forward one the most critical technologies in humanity’s history: transportation. I’ve just felt like leaving the following piece of information, for no particular reason: Do check the Concord’s development problem: if I remember correctly, there’s an issue with air coming through the intake at Mach speeds, with conventional turbines. It always needs to enter the turbine subsonic (even when flying at mach speeds). Once the ramjet kicks in, I suppose that’s no longer an issue and it’s even desirable.

[@andersblom9152]

Wish you all good luck! Hope to c you in the air soon!

[@nathanielsims1215]

Great video, I liked listening to the engineers

[@philipcarter8511]

Wow, these guys seem to have their shit together. Good luck to them!

[@StillAliveAndKicking_]

This is impressive, I look forward to successful flights. Looks like you’ve adopted the SpaceX incremental development approach alongside integration of as much manufacturing as you can to reduce overheads.

[@michaelcaroselli8940]

“1st hypersonic airplane” okay I guess we’re going to pretend the X-15 never existed.

[@jmchaser]

X-15 wasn’t an airplane, it was a manned *rocket*. Conventional turbofan engines cannot go that fast.

[@superblackbirdrider]

X-15 was rocket powered 😊

[@ghostdog2365]

@@jmchaserRocket powered or not, it was an airplane because of its flight trajectory and mission profile. The X-15 was certainly an airplane, along with the X-43, (arguably) the Space shuttle, and other space transport systems that utilize aerodynamic surfaces to glide through the air and land on a tarmac.

[@SharonCothren]

@@superblackbirdriderits an airplane. Space shuttle also is classified as an airplane does matter what engine or how it's powered

[@superblackbirdrider]

@SharonCothren the whole point of the video is that it is jet engined, not rocket powered. It's the first (or will be) jet engined hypersonic airplane.

[@FBAExapt]

that’s so crazy

[@alphahawkgames6896]

This is the type of engineering that we love!

[@camdoice]

another banger

[@ALSNewsNow]

The first "UNCLASSIFIED" hypersonic plane.

[@RogerWilco1]

The visuals you got in that factory are spectacular. It looks like it was lit by hollywood. Bravo. Guessing you are using a Sony A7 S3.

[@halcon2134]

Ooohhh!, the facilities are every man alive's dream. Have fun.

[@chickenp7038]

this is the best chanel on youtube rn. it’s insane

[@tiedeken1]

super rad

[@goodson77784]

how smart are these guys if they have a black ceiling in a technical work setting. real genius.

[@diegosuarez92]

Why is a black ceiling good?

[@RogerWilco1]

@@diegosuarez92 I think he is saying it is bad, but gives no reason. White ceiling is when you want to blast everywhere with light cheaply. I think they want precise lighting in different areas.

[@diegosuarez92]

@@RogerWilco1 hmm yea that could be. It didn’t sound like the comment was talking about filming or lighting, but then I can’t read minds 😄 The choice between black or white ceilings in a technical work setting depends on factors such as light reflection, perceived spaciousness, aesthetics, and maintenance. White ceilings offer brightness and a neutral backdrop, while black ceilings provide focus and a modern, high-tech appearance. Consider the specific goals and design scheme of the workspace when making the decision.​​​​​​​​​​​​​​ Anyway, I don’t really care about filming and lighting. Was more interest in the “technical work setting” part of it

[@mariomaro7]

Care to explain why a black ceiling in a technical setting is not good?

[@daviddickinson6346]

Why the hell does that matter, go paint it for them if you don't like it. Jerk

[@DanielSmith-lv5ed]

These guys are dam good! Like dam good and especially to be in their 20's or 30's.

[@slaction]

I bet the amount of cocaine that goes through that facility on a weekly basis is astounding.

[@Bangpath247]

they just radiate those Silicon Valley 10X Synergy!! WAYTOMUCHAMPHETAMINES!1!! vibes dont they?

[@d9k1]

@@Bangpath247this is the biggest scam contractor bs. These guys quit their jobs to fool the government into funding a facade of a project. Nothing said in this entire video, and everything is just props lmao.

[@sebastianbenner977]

How are they dealing with friction heating? The SR-71 used Titanium, but this looks like an aluminium skin.

[@Deltarious]

I somehow suspect that they aren't going to be building the first hypersonic plane, perhaps the first *public* one

[@fahdahmad7103]

As an aerospace engineer based in the UK, it would truly be a dream come true to work at Hermeus!

[@Mr_Lukasgrim]

Isnt fastest operational aircraft the MiG-31?

[@ianmastin]

I wish them success.

[@bailahie4235]

Perhaps somewhere mentioned already, but wasn't Concord the first? Looked it up: no Concord was ("just") MACH 2, hypersonic is at least MACH 5 (5 times speed of sound).

[@averystablegenius]

What is the experience of passengers when this thing tries to maneuver? How long does it take to slow down enough, not throwing passengers into the shoulder harnesses, to not kill everyone on board when it banks left or right, climbs or descends? How much of the flight regime then is actually hypersonic on the way to a military airport required to land it?

[@kiloohm]

I'm sure the Chinese love this video.

[@SLBBP]

Engines are one thing but how are you going to deal with the heat and expansion of the plane itself while traveling at those speeds?

[@darylfortney8081]

This is so cool... I'm in Atlanta, can I visit the factory?

[@i_might_be_lying]

Noice!

[@ALeAnn365]

I second that noice!

[@EngiRedbeard]

X-15 was not a ram jet, it was a rocket engine. Video showed it as an example of a ram jet that needed to be air dropped.

[@toddslaughter2192]

Came here to say this!

[@EngiRedbeard]

@@toddslaughter2192 is it not true?

[@toddslaughter2192]

@@EngiRedbeard You got it right. The X-15 was a rocket-propelled aircraft. Apparently it was once fitted with an external scramjet engine (supersonic combustion ramjet) for testing but it was never fired.

[@mrhassell]

X-15 Hypersonic Rocket Plane, was the worlds first Hypersonic Airplane and in April 1961, Russian Major Yuri Gagarin, became the first human to travel at hypersonic speed, during the world's first piloted orbital flight. You cannot claim a world first, when something else has already achieved that and holds the title. What you mean, is world's first at scale manufactured, hypersonic plane.

[@Hughe_Jaynis69]

A folding wing design could help with any low speed maneuverability issues.

[@DanielSmith-lv5ed]

I know nothing of flying, but i know frozen magnets are much much stronger, and flipping the second mag would cause the gears to stabilize but with loss whereas flipping it other way, that is different, no stabilize, opposing fields. Just gotta try it

[@kindnuguz]

Its not about humans flying at these speeds, its more about planes being reusable and being capable of those speeds. I mean rockets , missiles have already been ultra fast, but not reusable. I don't foresee more humans in planes but less, but I do foreseen this technology being highly valuable for outrunning AA or even delivery of goods around the world.

[@ToviDing]

I felt like the old SpaceX vibe is back!

[@user-wy5ch2xc8z]

btw if you guys didn't realise, this was an marketing campaign aka sponsored video.. not an interview.

[@SemGabelko]

How do you know?

[@ioanbota9397]

Realy I like this powerful hypersonic airplane

[@michaelwalsh7846]

Aircraft. After the SR71 came the Hypersonic (Mach 5 +) Aurora. Staging at Machrihanish over 30yrs ago. I know it was seen a few times at said field longest in Europe at the time, able to take the shuttle if needed Before it showed on scope the mil operators would be briefed. Where is it now?

[@greenveg42]

Great stuff as always!!! I kinda get the feeling that the playback speed is like amped with 10%?

[@BiggestMarph]

0:09 what a profound way to look at aviation.

[@crebbsjd]

So cool, the future is here!! America 🇺🇸 has to lead the way. Now or never. Really cool what you all are doing. Keep those specs in house and get the government contract. Our country has been waiting for a company like you. Good job!

[@thecatsupdog]

Surprised they let you film the planes that much. That weaving company wouldn't let you show anything.

[@DheRadman]

market for the weaving company is huge and cutthroat. they also have a very developed system. These guys will have exactly one customer for the next two decades and they're still trying to catch up to anyone who would be interested in this concept. Still, it's pretty cool

[@masterchafer]

How much coffee are these co-founders drinking. They are so wound up!

[@ArthurGibson-cz2dy]

😂

[@finkamain1621]

They need to wind down and just put on the short sleeved collared shirt with a tie and pocket protector

[@tropsele7945]

I don’t think it’s coffee, my guess would start with c and end with ocaine

[@dfinlen]

Adderall is hell of a drug

[@user-ic6xf]

Yo, how does this channel have only 29.7K subscribers? Here before 1 million...

[@xmorse]

I would like to hear the questions too not only answers to unknown open questions

[@beaverbuoy3011]

s3!

[@shareurtube]

Kelly Johnson is somewhere laughing his ass off. Took you guys long enough to catch up with me and my 1960's technology we used in the SR 71.

[@slaeshko]

hater

[@erviplayer]

@@slaeshko SR 71......

[@stevehicks8944]

Nope; just stating FACTS….

[@anormalphantom130]

Pretty sure this one is set to go faster than the SR-71

[@maxmachac9756]

The SR-71 isnt Hypersonic.. so no

[@MaltoonYezi]

Just realized that an Aircraft like this would allow to commute from New York to London daily

[@tonykasunic1]

It would be amazing for them to explain how their engine is different from the Pratt & Whitney J58 on the SR71. Sounds similar but im not an engineer, so i must be missing something.

[@cayleependerass]

I honestly don't think you missed anything. Sounds like a startup saying all the startup words.

[@norsenomad]

I was wondering the same... From what I've read, they are both examples of turbine-based combined cycle (TBCC) propulsion, in principle. To my (limited) knowledge about engines, they look quite similar. Some difference: while the J58 engine uses 6 bypass tubes to move air from the 4th compressor stage directly to the afterburner, in the Chimera engine "air bypasses the turbojet" (quoting Hermeus) entirely and is led directly to the afterburner. I can only assume the explanations are accurate. A second difference is that Hermeus base their solution on a commercially available engine, which saves cost - and that's a big deal, for economy and scale of manufacture. It will be very interesting to see how the modification of the Pratt & Whitney F100 (which powers the F-15 and F-16) into a TBCC will work out. Any way, wishing good luck and cheering for Hermeus! J58 bypass explained (at point in video): kzbin.info/www/bejne/fGTEoGiJeMqXf80 Chimera bypass explained (at point in video): kzbin.info/www/bejne/Y5XcnK2ibrCUnJY

[@nurnberg1561]

This craft in the background is essentially a jet powerd hypersonic missile drone

[@robertgolden1080]

SR-71. My tech is so old that it’s new again. However good luck guys. American aviation innovation, other than stealth tech and avionics, has been severely lacking in the past decades. It fantastic to see a younger generation getting excited about aviation and pushing new boundaries.

[@tomcatr2966]

You will need to apply an insulating coating to your aircraft. Like Shuttle or Buran. (black tiles) Otherwise your plane will melt.

[@offthepathworks9171]

The first thing that comes to my mind when viewing your videos is - calculus man, that shit slaps.

[@AllDay3090]

America, and the whole civilized free world in general, is starting a new phase of technology and manufacturing that is really exciting.

[@NICKCIN]

hell yeah! Can't wait to see super/hypersonic stuff back in action after so long!

[@Stone46988]

This is not the future of technology. This is just staying the same.

[@thatbee4923]

The engines they're making are straight out of ksp it's insane

[@philosopherofinfinite4558]

If the bann on super sonic travel is repealed then maybe this tech will be used in airliners.

[@oberonpanopticon]

Iirc only sonic booms over populated areas are banned, but I could be way off on that

[@kish2934]

Incredible startup and production

[@aigslmnop6559]

Chimera is a mix of two engines this saves weight but constrains both I wonder if anyone looks at alternating the two integrated engines

[@orlandofross4817]

The aliens already possess that tech

[@ItzGanked]

gotta go fast

[@Kyzyl_Tuva]

Looking forward to Dark Horse. Great video.

[@Dumbo_Bat]

I never knew hypersonic aircraft weren’t even a thing back then! I thought there had been at least one in existence

[@NewtonInDaHouseYo]

That is an amazing venture. Question: What is the reason Quarterhorse doesn’t feature area ruling for it’s fuselage? Doesn’t that limit the top speed?