PHX4 Rocket launches to over 200000' attaining the highest amateur two stage flight.

Experience this amazing supersonic near space flight through on board HD video. Curt von Delius's state of the art PHX4 launched on June 16, 2018 from the Black Rock Desert, Nevada. Accelerating to over 3.5 times the speed of sound the rocket coasted to 46 miles above sea level. This is the highest flight of any amateur two stage rocket. The reusable design was recovered using Disc Gap Band Parachutes and touched down 6.36 miles from launch.

[@taraswertelecki3786]

This rocket flew faster and higher than most surface to air missiles do. Impressive does not begin to describe this achievement, I would say the builder is a professional.

[@AnkitSharma-1337]

it did'nt have to carry the weight of the warhead thats why. It was all fuel.

[@ifocus1279]

Ankit Sharma yup I agree there wasn’t even a payload only the camera, avionics, and other else

[@SethBeck]

Almost zero payload.

[@mattmadden2501]

that rocket climbed almost 40 miles in less than a minute. that's insane

[@rats6136]

That acceleration was mad

[@excitedbox5705]

46 miles. Over 240k feet. That is just below what counts as space.

[@leonidkhamadakov7778]

imagine the Gs it would be experiencing

[@okboing]

*S C I E N C E*

[@jarlett3793]

Thats 2400 mph if im right 😱😱

[@EASYTIGER10]

Always amazes me how quickly the sky goes black. The blue is just this very thin puddle on the surface

[@danjuric622]

EASYTIGER10, fragile isn't it? Such a thin ozone layer. Like an egg shell.

[@eric4369]

yup the blue is just a reflection of the ocean off our atmosphere. Once it thins all you see is darkness.

[@wadezickefoose1993]

Thanks for pointing that out. I have never thought of it that way

[@adrianflores8432]

@@danjuric622 It's not the ozone layer what makes the sky appear blue, it's the whole atmosphere, which its indeed itself very, very thin if you compare its thickness with the diameter of the Earth

[@shiraz1736]

Yes amazing that that reality hasn’t sunk in for many.

[@garystinten9339]

would love to see a documentary on all processes of this video.. from design to construction and manufacture to launch.. I'd watch a 3 hour video.. easy.

[@josephmaluf1669]

There is a documentary I think but I don’t remember the name of the video

[@Blue-moon12]

Good to see a rocket actually go vertically

[@MinhNguyen-wz2wn]

Their goal is height, not orbit anyway :v

[@dettolhandwash4998]

It’s because they weren’t looking for a orbital flight

[@DarkTheFailure]

Well if you wanna watch that go to blue origin launch of new shepard. They are all sub orbital, they only need to go sideways. Orbit on the other hand needs to go horizontal or they just fall back to earth

[@Project2457official]

Even though they were just trying to reach the highest apogee possible, rather than actually make orbit.

[@nathanbourland5133]

92.5 miles traveled round trip, and lands less than 6.5mi away... Impressive!

[@b679995]

This was the Absolute BEST Amateur Rocket Video that I have ever Watched, Thank you so much for Sharing it !

[@davisabaoag953]

OMG!!! This totally blows my mind so much on how fast it goes to space. Congratulations guys. You guys worked hard and deserved to be on the book of world record.

[@freshimpactco.8698]

Absolutely breathtaking views, incredible acceleration and I dare say far beyond amateur. Well done guys on breaking the record, or should I say smashing the previous record. Keep it up, I am sure you have just created a sensation and a new record for others to aspire towards breaking.

[@DavidJacobsMusic]

I know I'm 'too young' to do this at 13, but someday I want to make the impossible possible and learn something like this. then make the double impossible possible and achieve something like this.

[@MilesB1975]

What amazing footage, Simultaneously frightening, beautiful and inspiring.

[@brookiebob]

that's the first rocket i have ever seen go straight up rather than up and across

[@bustarogers9990]

You do realize why they do that right?.

[@samjames8690]

wisconsin trout fisherman this is because they weren’t trying to put this rocket into orbit

[@charlesdye8367]

It was not trying an orbital launch.

[@tropingreenhorn]

Going for height instead of orbital velocity :) pretty cool huh

[@Belrmar]

Because it's not trying to get into an orbit,just as high as possible. To go into orbit you need "lateral" speed not just going upwards

[@mikefisher1629]

Congrats! Curt is a very smart dude and a heck of a nice guy. This does not surprise me that he built a rocket capable of this.

[@frankallen6419]

Excellent launch , great video , and good narrative on each step. Thank you for the adventure. I hope you make another !

[@jboosa]

Man! That really carried past propellant exhaustion! Incredible video! Thank you!!

[@maxcraig466]

Incredible from beginning to end ! 6 miles ! Ha, doubt mine would have stayed in the same country ! Fantastic job, can’t wait for your next !

[@brucebehner4142]

Wonderful execution, everybody needs to step up now! Thank you.

[@MichaelSHartman]

A big congratulations on the IMPRESSIVE flight and video. Amateur rocketry has come a long way since the time of Estes rockets. Space has finally reached the public. Again thanks and wow.

[@continentalgin]

Reached the mesosphere. Pretty cold temps up there.

[@garyheron]

Congratulations to all those involved. A great achievement!

[@tinkmarshino]

woof! what a flight.. well done folks!!! I was surprised to hear the atmosphere as high as I did.. amazing footage.. but I did have to look aways a few times as it was spinning my head... Thanks for the share..

[@PatchouliPenny]

Play it st 1/4 speed, makes it even better

[@jessewatson4876]

Stunning footage. Absolutely breathtaking. Thank you for this.

[@PunannyFace]

Absolutely amazing good job hope all ur rocket launches go as good as this

[@aymericgoupil2138]

This is without a doubt the most incredible video i've ever seen in 10 years wandering on youtube. My sincere congratulations for such an achievement. Semper Ad Astra

[@SuV33358]

I agree

[@4edward61]

That's just WAY cool!! Nothing like the rockets my brother and I launched from the Junior HS field back in the early 70s. Awesome!

[@michaelsclafani3815]

Wow, quite amazing! Good Job!

[@3dvideosvr638]

Damn, great job on the rocket and its flight!

[@reginaldjones9924]

That was truly amazing! Much Congrats and much more success!!!

[@58myname]

Just because of the the way u jus made me feel while watching this video...im subscribing now

[@evo9467]

Astonishing results! Best amateur footage ever by far!

[@Skreamies]

This is honestly both an amazing feat and beautiful at the same time, our Earth is amazing that's for sure!

[@rt9372]

This was really, really cool. The most stable camera I've seen, great job!

[@totalchaos290]

That was amazing thanks for doing this. And good luck in the future.

[@gwag8410]

And I thought my bottle rockets went high...

[@stilltlrforlife]

Excellent job!! Great footage

[@user-td1zo3tv9p]

In a word: PHENOMENAL! Congrats on your achievement! Tis a FAR cry from an Estes "A" series rocket and motor combination.

[@AG.Floats]

Well done. That thing was really moving!

[@supermarioisacat]

Super interesting to hear the wind noise slowly fade out as the rocket leaves the atmosphere and then fade back in on re-entry.

[@CardZed]

Sadly didnt reach space, but that is still really high for an amateur rocket. 73 KM!

[@chris-hayes]

Wow, the speed is incredible. The surface of that rocket must've experienced some insane temperatures on the way up.

[@putteslaintxtbks5166]

Bet not much paint could've stayed on the outside. Let alone heat, sandpaper like air at mack 3.5 !

[@iCore7Gaming]

Yep would've got damn hot in the lower atmosphere. Probably cooled down fast though

[@sjlarcadia2]

Did anyone calculate the g-forces on launch?

[@mduckernz]

Indeed, you often see that the leading edges of fins experience significant ablation, and depending on the material, melting. If fibreglass, Kevlar, carbon fibre, or any other fabric type of material is used, it must be wrapped over the leading edges, otherwise it frays and can even rip the structure apart. At minimum, of significant fraying occurs, it causes massive drag which may be unbalanced, causing the vehicle to go wildly off course. Camera lens covers/overhangs used to protect the lens itself from heating and ablation must also be carefully selected, otherwise it is not uncommon for them to melt or fray over the lens, obstructing the view partially or even completely. ... and yeah, the paint is often scorched away completely in sections, commonly the area just below the nose cone and around + behind (if there is such a section) the fins

[@Senystyn]

Absolutely wonderful, great work!

[@tfish38]

nicely done! Congrats!

[@kevinbyrne4538]

LOL WOW ! What incredible acceleration. Congratulations, Sir ! Very nicely done.

[@hsgrain490]

For a summer my two sons and I would buy the rocket kits from Hobby Lobby and set them off. Looking back it was a great way for us to bond. Thanks for the video, wish you great success in your future endeavors.

[@MrJdsenior]

From a former rocket engineer...IMPRESSIVE.

[@NightBazaar]

Very nice. That was truly impressive!

[@vintagedreams162]

And by the way congratulation! Most awesome!

[@gamechanger4973]

Just amazing, fantastic video!

[@Kwint.]

1:40 I love how silent it is

[@blackirish781]

Amazing rocket and beautiful footage!

[@jabbawaffle6346]

Outstanding work. Well done!

[@projectstratoclipse7659]

Fantastic work! This video is absolutely beautiful.

[@Azim196]

Incredible! I love it! I really am tempted to start my own model rocket adventures

[@sanguineshade9545]

That... was … AWESOME! lol Great job.

[@ThoFu83]

awesome Job and great footage!

[@stevieengle5822]

Omfg the earth is gorgeous from up there dang nice job guys.. looks better than nasas pictures and vids.

[@davidpinter1663]

Awesome flight and recovery. Thanks for sharing and pushing our envelope.

[@taraswertelecki3786]

At 2,700 mph, it not only became very hot, the aerodynamic forces upon the rocket must have been enormous.

[@AirCommandRockets]

That's pretty awesome! Well done. :)

[@mesau7002]

Not a bad way to spend your afternoon. Thanks!

[@MatinAndTheBudgies]

This is even better than NASA

[@SabbaticusRex]

Congrats team. That was a wild ride.

[@goneinsixtyseconds80]

great flight, well done!

[@manoman0]

Very very very nice! The video is very artful.

[@JR-kk6ce]

That was so freaking cool!

[@chasd00]

This guy is as much an artist as engineer and holds records all over the impulse classes. He gets small motors to go, what mere mortals would judge, impossibly high. Here he's getting large motors to go, what mere mortals would judge, impossibly high :)

[@unodosxx]

That's awesome guys.fast launch that baby was zooming

[@ElUniversoconMomoOficial]

That was amazing, congratulations!

[@dankuettel5063]

Fantastic! What an accomplishment

[@JohnLeePettimoreIII]

Just over 46 miles in altitude. Impressive.

[@djo9941]

I have my 2 stage estes alpha ready. I'm going for it!

[@bendryden3228]

the transition of the blackness of space into the blueness of the atmosphere always fascinates me

[@alpcns]

Absolutely brilliant. Excellent footage. Congratulations!

[@batchiej]

Within 35 seconds you have gone from the safety of our “blue sky” to the blackness of space. Phenomenal.

[@josephhernandez3949]

WOW.... This is truly amazing!!

[@clintballinger1370]

Incredible!!👍👍

[@peterakbari8158]

Absolutely outstanding! Congrats!

[@bobvincent4841]

It's amazing that the thing is going SOO FAS when 2nd stage ended, about the same time it was finishing punching through the thickest of atmosphere gas and finally getting in the somewhat vacuum after 2nd stage, it still climbed another 1.5 minutes before stopping and falling back! Wow 36 miles in 2 minutes. So cool. Can u imaging if there was a 3rd stage to burn after it was in the vacuum?? Boogie boogie!

[@justinbouchard]

This is absolutely amazing.

[@mottopanukeiku7406]

WOW! Congrats to all the people who contributed to this. A real achievement.

[@glenesis]

Nice flight. Congratulations!

[@devosious7085]

Unreal and awe inspiring!!!!

[@boombox0410]

Amazing! I wish i had the brains and the money to make something like this.

[@CaptainFoufeu]

Excellent achievement guys! Good work! And considering a touchdown location only 6 miles from the launch site, that's pretty incredible! What a superior feat of engineering! What's the next goal? Something put in a sustainable orbit, at least one revolution? That would be amazing!!

[@johnnyroxx8513]

Excellent shot folks. A tremendous achievement.

[@karlrobinson4887]

That's crazy how fast it crossed the boundary between atmosphere and space. 1:28

[@richardturner6981]

Absolutely Awesome! Incredible! I love it!

[@thondupandrugtsang]

I tip my hat to these guys. Very impressive.

[@timbaldwin9951]

Amazing. What a view. Congratulations!

[@antwainmcgee2268]

Incredible. Absolutely incredible.

[@Leos-World]

Well done! Congratulations!

[@cleeshann1928]

Congratulations! Great Job

[@pojucanpaulucci9052]

Good job Congratuations from Brazil.

[@MrMarco7259]

Very impressed!

[@darrenkrivit6854]

Helluva ride! 😎 Nice job and congrats

[@djamelmarouf9117]

Wow fantastic, great, congrats!🤩

[@JSDudeca]

Wicked. Any way to overlay the telemetry data in real time?

[@raging_rhino2582]

Whatever he said... Sounds good

[@studywithme5085]

Hats off bro

[@oregonone132]

First of seen of it. Thanks Curt.

[@krystalmorrow2606]

Great job! that's very high up.

[@radders261]

Very well done!

[@matheuscardoso1]

This is the pinnacle of human potential! Great video, wonderful work. I have no words.