UPGRADED!!!! My most advanced rocket engine build yet
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- Опубликовано: 19 сен 2023
- Engineers and designers can sign up of the free version of Onshape here: Onshape.pro/CallumLong
Go check out my social channels to get more updates on future builds.
Instagram : / callum_long149
Below are links to the CAD Assemblies you've seen in the video.
Rocket CAD File : cad.onshape.com/documents/322...
Needle Valve CAD File :
cad.onshape.com/documents/03e...
Ball Valve CAD File :
cad.onshape.com/documents/3a1... 
Развлечения
We learn from our failures. Adapt and overcome.
Keep documenting your work and can’t wait to see the next instalment
I can't tell you how many weeks, months, years I've spent building things just to have them blow up in my face. It can be just as heartbreaking as a death in the family 😂
But No way I could have gotten here....and learn what I've learned without those experiences.
I look forward to watching your progress!👍🤘
Half the fun is learning from the journey. So glad you're not slowing down. Keep moving forward............
Simply awesome been checking for new videos in the channel. Finally found you after long time, it was great that you are doing it with your own hands. Would be really helpful if you could try explaining things in detail before going to actual tests. It was a great effort definitely you will achieve it soon.
Perhaps your next engine could be an augmented spark igniter (torch igniter), a mini rocket engine used to ignite a bigger one. That way you are less likely to have a hard start when you make bigger engines. Good luck.
How many times did NASA have unintentional ignitions, thats just part of building and testing rockets as you already know, don't look at it as a failure, looks at all the data and knowledge that gave you, keep it up man, your doing an incredible job!!
Keep going with this mate. I love the attitude, learn from every build, every test, every result. Just look at the big space companies, they never get it first try, it takes hundreds of iterations. You’re on the right track mate, apply everything you have learned and take as much as you can from every failed test. Looking forward to seeing how this progresses.
Why you are into making a cooling system with a enclosure...you can go with using copper tubes stick around the nozzle and flows the oxygen throughout the tube around the nozzle and supply it to the combustion chamber...this flow can cool the engine and also sufficient pressure can be obtained....check it out
It's so nice seeing new channels with 5k subs make content better than channels with 100k subs. Keep up the good work!
Also that mic sounds a lil funky
11:51
Sound could mean he is building something star wars too, maybe a death star?
Good to see your back mate! This a great learning experience that not many guys get to do, it will put you in good sted for the future...
Glad to see you still posting! Can't wait for the next one 👍🏻
By far the best eddited video you have produced!
Great work guys 🎉🎉🎉
This is the mindset!!! The videos are now on a level i wish others would make theirs!!!
Excellent stuff
I like you work you consistent on your work and you continuessly uploading videos 😅 good work bro😊keep it up 👍
Great to see an update, even if the outcome wasn't quite what we all wanted
You rock!
You can do it! I kid you not when i say that i was so happy to see an upload of yours, keep it going!
Hope you *blow up* on youtube man! love this
edit: I laughed out loud at 18:28 , been there done that.. more than once...lmao!
Fail hard and fail fast! Keep learning! And all the very best next time ...
Yo Callum, this is sick mate. Keep up the great work!
That blowed up real good! 😁👍👍🇺🇲
If I recall correctly, NASA fixed their unintended detonations by putting baffles on the injectors.
Great progress! Time to analyze and build off of what you’ve learned this time.
This is going to be amazing to watch, Subbed and waiting for more cant wait.
I am so impressed and a bit jealous! You are doing great and I know that you will have it working in no time. Remember that "Space is hard."
Great video!
Whooo, that was great. Don't give up. Next time will be better
Dont let failures keep you down! You can do it
congrats on getting a sponsor and glad to see another video!!
perhaps having a higher pressure difference across the injectors and maybe a longer combustion chamber might solve the issue
Great video
Congrats on the new space. I know you can get the engine next time, build, test, iterate.
It looks like there was a flash back to the top of the engine damaging the top of the engine.
LETS GOOOOO
Just speculation here but two speculations: 1) Could increasing fuel pressure further decrease any chance of fuel backflow? 2) Could a sort of soft start program with a fuel rich stoichiometry in the beginning avoid detonation?
Keep at it man we learn from our failures
Yes Callum good shit 👍🏻
I'm waiting
Nature always has a sense of humor :D
With "ideal" check valves tuned to "chef's kiss", the most you could expect is pulsed operation, with the chamber filling with mixture, lighting, the chamber pressure closing the check valves, mixture burning out, pressure dropping permitting additional oxygen and fuel.
Or the other option would be a low pressure engine, where your chamber pressure doesn't exceed your fuel and oxidizer pressure. Somewhat counterintuitive, that will still produce thrust: the burning heats up the gas, increasing volume, so you can maintain that pressure over a much larger nozzle area compared to your injector opening areas. And thrust is pressure * area, not just pressure.
Failure is just a stepping stone to success!
You got this!
I do suggest going a little bit more indepth about the technical changes you've made since the last prototype so we can get more of the juicy nuggets of information. I would love to know what changes you made in the ignition system and also some explanation about what exactly went wrong in this and the last test would be great!
I'll be here with you, supporting you, watching each and every one of your videos as you go forward with your journey of building rocket engines on RUclips.
You rock Callum 🤘🏻keep up the amazing videos
It wasnt fluid flow that travelled back up your hoses the last time - it was a flame front that went back against the flow direction. Check valves won't stop a flame front. This time looked different: cant comment on the failure mode. Keep safe.
Great project mate, is my dreamed project for one day, a liquid propellant rocket engine. I've read a lot about that. So I think I could hit you a couple of tips. You need a pressure and temperature sensors to be able to control the reacction inside the chamber. Knowing the pressure inside the chamber lets you to build a better chamber and test it with water at the pressure you have messured, a cold test is allways safer than a hot one. The temperature gives you the information about how the reaction is taken place inside the chamber, the right ratio O2/fuel is your goal, this gives you a better flame and a right temperature of the combustion so is more difficult to blow up or fuse your lovely rocket engine. Charly Garcia and BPSspace are your best friends now ;)
More direct control with the oxygen valve could help. In his first hot fire, it looked like he had a fuel-rich combustion (since it looked like the oxygen lines failed)
"what is that smal shack over there?" "oh thats just my rocket engine test stand" XD
I wish I hadn't given this a like in the middle… so that I could have given it a more enthusiastic like at the end! Keep up the hard work! Love these videos.
Oh, and just want to say that I was really excited when I got the notification that you had posted another video. We're all rooting for you.
Wow, glad you’re back, I thought you’d maybe blown yourself up!
NASA put baffles in the F1 engine's combustion chamber after they kept exploding in the test cell, you might want to look into that.
Increase the pressure drop in the injectors! Aim for a DPinj/Pcc in the order of 25-30% if you want some safety margins!
16:00 hahaha the face. I know we are not ionmune to explosion, thanks for include fotage like this human reaction.
I cant wait for the next iteration. Do not let this stop you, perhaps reach out to Joe from BPS space for a 2nd pair of eyes. Good luck!
There was a fire, it was hot. Test failed successfully. 👍
I watched your prior videos but only skimmed this one because of time at the moment. If I recall you are using gaseous fuel and oxidizer? Can’t do that, or at least not with a substantial amount of design and tricks. I think the mixture ignited and caused a pressure burst that then rammed back on your fuel and oxidizer which are also gaseous causing oscillations and messing everything up. In a liquid rocket the liquid forms a seal and the injectors are effectively one way valves with a huge head of pressure. A gas pulse can’t move much of anything then so little impact. At the very least I think You need to go to pressurized liquid propellant with a simple pintle valve, and you will likely get at least some success. IMHO of course.
Great video! I wonder how backflow would work in this case, since the oxidizer is added to the fuel in the combustion chamber, right?
I loved the video. Great filming!!! A lot of RUclipsrs cuss in their videos, but I would love it if you did not in your videos. Thank you for not cussing in this video. I plan to use onshape to design nose cones for my model rockets.
I guess backfire is occurring due to the shape of the combustion chamber. The exhaust opening is too small and all the inlets size for fuel, oxygen combined is larger than the exhaust opening and also those inlets directly meet the combustion chamber. Maybe the backfire problem will get solved if you feed oxygen and fuel with a single inlet in the combustion chamber and make the exhaust hole a little bigger. And a better oxygen and fuel ratio
Use more cameras. Everything you have. Cheapest camera the closest in case of RUD. More camera angles. You will get more picture to analyze. More is more.
to much chamber pressure you need a hell of a pump that flows more pressure than is in the chamber, when i get my nitrous bottle filled they use a pump maybe try one of those ? either that or build a turbopump ?
They say "Fuck around and find out." Well, the only way you can find out is to fuck around, so keep fuckin around, dude! Can't wait to see you get it working, because I'm sure you can!
Is the milling machine yours? Because this is great to have one in this good of a shape
Great work! Oxigen is liquid or gaseous? If liquid, how do you keep it liquid from the tank to the injector? Doesn't it evaporate? Thanks😊
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Protective screen for the mill, but no guard on the angle grinder? One of those things will mess you up more when it fails (unless you go and touch the spinny bits yourself), and it ain't the mill. 9k-11k rpm ain't a joke.
Could that have been a hard start? When we had hardstart on our motor attempt, detonation was large enaugh to squash entire feed system structure
What laptop do u use?
I saw alienware logo.
okk
Failures are way more interesting than successes! and as long as you learn what caused it, they're way more educational too! let's have an analysis of what went wrong, before you dive into the next version, there's more content to be had if you do this right!
I did get the heebies when I watched the test though. It might have been disappointing, but with that much water pissing everywhere, and a liquid fuel, you should have called-off the test until you'd fixed it. Take it from someone who's played with fire and had shit go south a time or two, you've got to call it when something's not right, else you're just leaving it to luck. ( an appropriate fire extinguisher and a decent plan would have helped too)
Я и моя команда... что-то делаем...)
prune your apple trees.
hurts to think someone maintained them for 50 years, probably more like 100... generation or three... a supply of food... and now theyre neglected as thats all "boring". little kids used to climb them, nibble their fruit, laugh, play... not now. got better things to do. important things. who cares about a few mouldy old apple trees?
of course, apple cider does make ethanol... and theres methanol from all the clippings...
but nah. im old fashioned, thinking about apples.
Try not to focus on a release schedule for videos, or whether a single test lived up to all of your hopes.
Big companies are spending billions of dollars to develop engines and they still have fairly frequent failures. Rocket engines inherently push the bounds of what is possible and don’t really involve any easy problems.
FWW, I would say take a step back and see what you can simplify to get past the immediate hurdles. The cooling system is a good idea, but premature given ignition & combustion issues. Instead of trying to run full power, maybe start at lower pressure - both for the fuel & oxy feeds as well as the combustion chamber. Propane might be an easier step to work out some kinks instead of jumping directly into liquid fuel.
You don’t talk about doing research, but you could go back to what Goddard did, or even von Braun. It would be really odd if even an egotist like Musk wanted to reinvent everything, instead of focusing on what could be improved.
Also, have a fire extinguisher on hand that is rated for flammable liquids!
Still enjoying - keep up the good work!
you have potential to be big on youtube, simple editing improvements would really make this channel blow up i'd bet. The music you use is infuriating and unnecessary.
note to self . get a sofa
Your Engineering Course is a bit rubbish then...
Sorry about your fail. You need to focus on what failed, and only fix that. Forget about "UPGRADED" everything, just fix what failed. Go back to the Original Engine.
Upgrade = Adding MORE failure points. Ask "Tom" about software Upgrades before the Current Version is Stable. Ask NASA about their Shuttle Program.