Sugar rocket fuel + magnalium and aluminum
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- Опубліковано 8 вер 2024
- This culminates everything I know about using aluminum and magnalium in sugar fuel. I tested four sugar motors with different combinations of metal powder and have provided thrust and burn times with each example. At the end, I form a summary of the tests.
All tests are experimental without extensive testing for safety. Making rocket fuel is potentially dangerous to you and your surroundings. This video is for demonstration purposes only.
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Serge's experiments with aluminum.
serge77-rocketr...
Casting sorbitol rocket fuel.
• Casting sorbitol rocke...
Flexi-fuel for 38mm motors.
• Supercharging Your Roc...
Loki hardware.
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Supplies I used in this video. I earn a small commission from items purchased through Amazon links.
Thanks a lot for this video ! Great to see new experiments!
Freaking crazy I just did the same thing but I want to try Aluminum oxide powerd at a 11% to 15% ratio
Let me know how that works out!
doesnt burn.....?
Mill out the Cases and Line them with Satanite or an h/t Epoxy/Crushed quartz composite. ..(or use C/f for case and Use thicker Biffer/Ceramic resin composite Lining.. really🤙🏻..
Also, Cheap graphite crucible carefully shaped on a lathe!.. As diy sintering is a pain😂
Try using iron oxide powder.
Thermite?
@@atrumluminariumburn rate catalyst
I was thinking 1 - 5 % copper oxide . Any thoughts?
Designing a Rocket presently.
Going for Height and Distance..
Thanks for sharing your fuel mixes and success's and failures....
I have a fuel in mind that uses Styrofoam and Acetone mixed with Fine sawdust; and the Potassium Nitrate and Magnesium Sulfate and Sugar mix which is then added to the Burn Putty made from the Acetone, Styrofoam and Sawdust Mixture.......
Should pack in real nice and hold it's composite form real well also...
But if I am right ; the True MAGIC is in the extremely long burn time...
So I am making a Teflon Coated Ceramic Nozzle with a 3/8 " hole as per reduction and propulsion...
The Flare conical taper is very similar to that of a standard CORK ....a strip if Asbestos fire blanket will wrap the outside of the Nozzle and serve as heat shield and barrier...
Be careful when testing unproven formulas, acetone is very flammable and styrofoam burns crazy fast.
You could experiment with erythritol sugar. It is very difficult to light but has a long burn time. The sugar is listed in Meteor: meteor.open-sky.fr/
@@TheRocketeer Thanks man , will look at that...As always Safety FIRST ; when experimenting with combustible formulas I start with very small amounts and test each reaction before attempting to put the whole formula together....RE , amounts and equivalencies per compound added to the formula...
Also , I am looking at Ammonium Nitrate Rather than the Potassium Nitrate or Potassium Chlorate....Each will be evaluated very carefully for it's characteristics and function within the Formula
@@phillipmiller1008 Potassium chlorate and potassium perchlorate tend to make things go boom instead of burn.
@@TheRocketeerexactly, and ammonium nitrate absorbs a LOT of moisture from the air, you would need to use it immediately.
Next time you use an aluminum motor line the interior with cardboard or use a cardboard pipe to fill the fuel and then place it inside the aluminum motor, The cardboard turns to charcoal and stops the heat from spreading to the casing.
Very limited amount of case protection. I've had tremendous aluminum case blowouts with cardboard liners.
@@rotaryrocketry fill inside the cardboard with charcoal and PVA mix or something, cleaning just gonna be a pain
Do you use iron oxide in your sugar rocket mix? If so adding 5 micron al is basically making thermite in the engine that would be why you are burning thru cases.
I don't use iron oxide (RIO).
Magalum can make some mixtures ignite with exposure to water.
Rocket fuel should not be exposed to water or moisture. I keep my grains sealed in a plastic bag and then placed in a metal box.
Some red iron oxide catalyst may help and some charcoal to control the burn. Or go with potassium benzoate potassium perchlorate and some iron oxide lol might whistle but with a solid fuel grain and a good nozzle it should have a food sustainable burn
Potassium perchlorate has the best flavour
@Jason Last well yea its the main fuel so its required regardless in most cases altered are whistles made with potassium chlorate but aren't as stable
@@pa-pyro2804 Sir I don’t care about using it as an oxidiser; you said it has a *food* sustainable burn.
@@jasonlast7091 it does in the correct ratio ..... do you understand how these work or need it spelled out for you
@@pa-pyro2804 I just want salt that tastes like real salt.
I know nothing about model rocket ballistics or chemistry. But the burn times seem too short to me? What happens if you make a much longer motor that goes further up into the rocket body. Is it too hard to control a longer burn time. Or just that it would go to far and retreval becomes impracticle?
The combination of sugar fuel and a weaker oxidizer require high pressure to get the aluminum burning. That is why the burn time is so short. It would be difficult to design a longer motor with this fuel. With enough $$$ and time it may be possible.
This summer I plan on using erythritol, a sugar alcohol to make a 48" long 54mm motor. Erythritol is a preferred sugar for longer motors.
Fast burn motors are preferable for heavier rockets and higher wind speeds. Slow burn fuels will reach higher altitudes with less fuel. It is easy to loose a rocket with both :)
Im new to this so forgive my question. Have you played around with different geometry of the fuel molding or inhibitor layer on the inside case facing the fuel?
I have not tried anything else at this time. There are a number of others such as c-slot and star.
Just learning about rocket motors and I had a question.
Inside the rocket motor during the burn, do the gases generated get compressed? And if so, as the solid fuel burns does the larger empty volume which the gases occupy inside the motor lower the pressure?
A 38mm motor can generate up to 1,000 PSI or more during operation. The motor will develop pressure (thrust) until the fuel is consumed.
Good
Hapy to see your video about this composition. I'm making rocket motor (3/8 inch inner diameter) with fuel KNSU+Mg, just dry mixing cause I don't have an electric stove at this moment. I've loaded my fuel by hand-ramming. Is this dangerous? And how to make it safer, I only has 8 gram of fuel at max.
I don't know for sure if this is a safe practice. I have rammed KNSU + Sulfur and never had a problem. You may want to consult a fireworks forum with your question.
@@TheRocketeer thanks sir. I'd love to see your post about this mixture on your website. 😁
Nice vidéo, really interesting.
I like the fact that you build your own engines but, you assigin numbers to their size. Would you start giving throat diameters in fractional dimentions! I've noticed that # 15 seems to be popular with you . What size is #15 ? I am Wicked Custom Rocketry
A number #15 nozzle is 15/64. 15 ➗ 64 is .234. They are measured in 64ths and that's how the nozzles are sold in the industry. I hope that helps, thanks for pointing it out.
Hey buddy, it's me again. Question are you adding the magnalium to an existing ratio of 65 35 mixture or are you subtracting it out of your normal mixture ratio. ..i.e. reducing anything or just adding 10 grams on top of the 65 35 mixture?
I added the magnalium to the standard 65/35 mix. If you do any experiments with magnalium let me know how they turn out.
@@TheRocketeer i had to put my course magnalium through the coffee grinder twice to get through a 75 micron sieve . my first grains are curing now. i noticed on my test burn on foil that there is a lot of residue from the magnalium , so it is gonna be rough on nozzles
Can you use powdered sugar ?
Yes, you can use powdered or granular. I find granular slightly easier to use because it does not clump together.
What are the proportions?
65/35 potassium nitrate and sugar melted. I mixed in 15% atomized aluminum and then cast the fuel. The sugar can be sorbitol or flexi-fuel, both are covered on my channel.
Pls can u explain number 12 nozzle
The number 12 refers to the nozzle diameter. 12/64, or .1875 or slightly less than 5mm.
Love rockets but new to making motors and 100% ignorant on the science. Oxidizers and reducing agents and such. Your motors are producing a lot of thrust (100+lbs) for a very short period with what appears to be very little altitude. I have gotten 2500+ ft from 2 stage d12 motors and I hope to have my triple stage F15 built when resources permit. I hope to get 5000+. Point is, can you lower the thrust dramatically and increase the burn time?
Yes, burn time can be extended and thrust reduced. The video you are commenting on features aluminum and magnalium added to the fuel and that produces a very short burn with high thrust.
You may be interested in flexi-fuel or sorbitol for a more reasonable burn time and thrust. Follow the links listed for more information.
D12 sugar motor: ua-cam.com/video/66sYTK32I7M/v-deo.html
Casting sorbitol: ua-cam.com/video/8_GsleHQZGwC/v-deo.htmlasting flexi-fuel: ua-cam.com/video/KZQ-cVx4Mkw/v-deo.html
My home channel: UA-cam.com/TheRocketeer
There are many things that contribute to rocket altitude. "Burning Money" weighs in at over 14lbs, so it will take a lot of energy to reach a high altitude. I may as well wave goodby to any rocket that hits 5,000' on our local field, it will be the last time I see it.
Congratulations on your success with a two stage D12. Watch for a video soon on how to fill the spent case with sugar fuel for cheap!
yeah, if you change the grain geometry then you can lower the surface area and increase burn time, and if you add some inhibitors like charcoal (and others that I can't remember the name of) then it will increase the burn time while decreasing thrust just like you said.
TLDR: you might already know everything in the paragraph below
For altitude a long burn is often better because it will have less atmospheric drag but you might need the rocket to be really lightweight to keep it stable. I personally can't fly higher than 3,000 feet at my local club so I care less about altitude at the moment and I am more focused on spectacle and the loudness. To that end, sugar motors are often underpowered compared to APCP like the ones that aerotech makes, but they are cheaper so I will add things like iron oxide to increase the burn rate and make things more fun.
If you want to make a high altitude rocket for cheap, you can buy a F10 motor at apogee components and an Aspire model rocket kit to send a rocket to ~5300 feet with little rocketry experience. If you put a single f15 from Estes into that kit then it will go ~3000 feet. The staged rockets sound more fun though
Mmmmmm😊
Please tell me how to learn About rocket.
UA-cam, UA-cam, UA-cam... And ask questions along the way.
@@rotaryrocketry UA-cam Doesn't have Formal course about Rocket science.
@@cueresaeam9315 True but what The Rocketeer and myself are doing is not "Rocket Science" It's amateur model rocketry... Bit different than what Nasa and Elon Musk are typically doing.
Everything I know about the hobby I have learnt on UA-cam in the last 18 months. That includes motor design, fuel mixtures, nozzles, electronics and complete rocket building. Find active UA-camrs doing this hobby and ask plenty of questions. I think you will find amateur rocket enthusiasts are friendly and very happy to answer questions.
@@rotaryrocketry Can you recommend any UA-camrs that helped you the most.
@@rotaryrocketry What your highest going Rocket ever built.