ROCKET ENGINES FROM HOUSEHOLD STUFF! ELEMENTALMAKER
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- Опубликовано: 23 июн 2017
- In this video we are going to make some super simple and cheap rocket motors using 1/2 PVC pipe, Stump Remover (Potassium Nitrate), Powdered Sugar, Sulfur, and Bentonite Clay (Kitty Litter).
Parts List:
1/2" PVC pipe (clear PVC here: goo.gl/5sgfD4)
5/8" Wooden Dowel (sandpaper to adjust to size)
Stump Remover (Potassium Nitrate) goo.gl/9dL5vs
10X Powdered Sugar
Sulfur Powder amzn.to/2LxWlFB
Bentonite Clay (finely ground kitty litter) 
Наука
For people new to rocketry, have fun with these but do not overdo it. If it blows up, plastic shrapnel is incredibly hard to detect on x-ray. It's better to have a larger nozzle diameter which may not create a lot of thrust over a too small nozzle diameter and a massive CATO. If you want a lot of smoke also put just a pinch of baking soda in
Thanks for a very informative explanation and demonstration. My son and I are brand-new to rockets and all that go with them. Your knowledge and inight are fantastic. Thank you very much.
@@frankwestphal8532
Thanks very much. 👍🏼
Why have people overcomplicated this simple hobby? This, as seen in the video, was the way it was meant to be.
Superbly produced!
ONLY 3K SUBS? People are missing out! This is gold!
Your comment shows as posted two weeks ago. He's at 7.7k subs now. More than doubled his subscription base in 2 weeks?
Hot damn, this dude is on fire.
9900
17K
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23.5k
Very nice. Saw your caption and had a wash of childhood memories return. Back then I got my potassium from the hobby store that sold supplies for Gilbert Chemistry sets, made my own carbon by charring wood. Had lots of success, but turned out Cub Scouts didn't offer merit badge credit for such adventures. Thanks for sharing.
Jay Littleton I wish I lived in the days when you could get potassium nitrate from the drug store! How awesome that had to be! Thanks for sharing your story and checking out my channel!
I imagine there are ready sources in small quantities other than the stump remover. I was all set after my post to see what I can get to make up a batch of "Christmas Lighting Effects" but my wife put the Cancelled stamp on that REAL fast. sigh.
So, this is essentially black powder, with sugar used as a higher power alternative to charcoal for the carbon source.
Three things: Do not mix this stuff in a blender or spice grinder. This is an explosive and too much friction can set it off. Grinding the individual constituents is fine, but together, just don't even think about it. Secondly, be very wary tamping this stuff down. Too much friction or force can set this stuff off easily. And sugar is sticky if it's humid out. (Let me say one name, Phineas Gage.) Thirdly, yeah, absolutely, a very low speed drill, use a hand bit and brace if you have one.
Good job visual and verbal instructions clear to understand and No background music
And he gets straight to the point
This was a damn good video. It caught me by surprise, too. I've been screwing around with a dry packed powder mix for my rockets, and a couple days back I had the idea of milling some crayon shavings into my powder, thinking the wax would act partially as a binder and also to surround the oxidizer particles when the flame front hits and melts it. And now here it is in living color, way before I ever thought of it. Damn. This channel is AMAZINGLY good, so this lets me know I'm on the right track. Cheers for the reply on the aluminum video. I'm ditching oxide catalysts and going sulfur after seeing this.
Glad your enjoying the videos Rex! While iron oxide is a great catalyst, I found sulfur to be a bit easier to work with for a compressed sugar rocket. I'm sure a couple percent iron oxide would bump up the specific impulse a bit more though, so it's probably worth a shot.
All my rockets with 2 % red iron oxide blow up...
Excellent video. All the details I needed!
awesome rocket engines thank you.
Have you noticed that when American's need accuracy - they switch to METRIC!
Any unit can be accurate
@@michaelschuler7397 You may use metric to be accurate, but you use Imperial to go to the moon.
@@frankduncan5685 but they will be using metric to go to Mars. 😁
How many metric flags on the moon?
@@Ninja1000sx. remember when NASA used imperial instead of metric by mistake and one of their mars landers crashed...
Cool video, those motors are costly , if you want to fly a lot, nice to know how to make them, nice video!
Great video greatly appreciate you making it
Great video!
Use an acid brush to clean your moving bit.👍
Thumbs up from Norway 😀
Thank you Terje!
Nice but I like making rocket candy and using some rust or aluminum powder that has been oxidized as a catalyst..
What I like is you can form them while in a hot past like form into paper molds and when they burn off they leave amazing white plume trails to track your rockets.
This is awesome. Exacty what I was looking for with my class.
You will probably get a much better reaction by taking the Potassium Nitrate and sugar in a pan and caramelizing it, then adding aluminum powder. But first place the potassium nitrate in the oven on low heat for 30 mins to draw out any moisture in it.
I've been subscribed to your channel for over a month, maybe two. I just hit the 'thumbs up' button. I'm also a basement chemist, and have made rocket motors before as well as flash powder. I've also mixed a 50-50 of Muriatic Acid (30% acid) and water to remove rust from metal parts. Once the rust is removed, I wash the parts with water and baking soda.
Thanks for your sub and thumbs up!
That was simply awesome.👍
maritimer Man glad you enjoyed! Thanks for checking out my channel!
I read a few of the comments and they don't seem to understand. This exercise is fun and safe to be shared with kids. I understand very well some of their comments but they're also talking chemical reactions that would be more than a third degree burn maybe more than that to your neighbor the quarter mile away. Great video as usual and with respect to making chemistry and physics fun to learn and life fun! Light up people it's not a video on shaped charges of thermite! Let's play nice and I wouldn't advise making three and a half pounds of rocket fuel unless you are going to get your unfavorite brother-in-law to do it haha!
Thanks for the cool video!
wow. i actually guessed your first quantity (67 g) was a percentage of 100 g, and after you said the second measurement (27 g), i predicted you would say 6 g of sulfur. thanks for keeping it simple for scaling!
I always try to keep it simple!
Now all that we need is the smiling group of locals I saw on my trip last year to mexico to visit ElementalMaker so they can launch these rockets from his great tutorial from their fingertips while he records as they share a funny smelling huge cigar between each other to set off the rockets fuses. Cheers to Tultepecs great fireworks!
Great video! I guess because you used powdered dry clay, I assume as the engine burns, the nozzle clay inside ablates to form a convergence cone, and the exhaust hole ablates to form a divergence nozzle. I use use hydraulic cement and wooden forms to shape the convergence cone and divergence nozzle, by having these geometries at launch, the rocket efficiency remains relatively constant throughout the burn.
Most people making small rocket motors probably know this, but I want to mention that PVC and some other plastics can create rather nasty shrapnel if the motor goes boom. Which is unfortunately not to unusal when trying to optimize them... I had to research this at work and the worst materials were PVC, PEEK and surprisingly nylon.
Polyethylene is safe and therefore often used in firework mortars. Not a good casing material thou since it creeps under load. Fiberglas behaves fairly safe as it delaminates/splits in flakes more than creating shrapnel.
I would suggest using paper tubes for small rammed motors like this. You can roll them in any dia and wall thickness from virgin craft using wheat paste or white glue. When ramming the composition bites into the walls better than in plastics, so fewer booms and safer. Note that the paper tubes need to be parallell wound, not the cheap spiral wound leftovers from household items. It is a traditional method well worth learning.
They make them that way in Mexico, and they are very reliable. People launch them from their hands.
When I was in the 6th grade a friend of mine brought a bag of batteries, pens, and just random parts. One of those parts just so happened to be a rocket engine. At some point someone thought it would be smart to connect the engine to a 9v battery while in the bag. I still remember my science teachers face when the smoke cleared after zipping around the room. Oh and our teacher had a farthing problem, he told us a story about him having to have part of his colon removed making him unable to hold his facts and he would rip 5 or so per class. I mean they would rip and you know how hard it is to not laugh when you're taking notes and all the sudden the silence is interrupted by a feat? Yeah we all got written up time or two.
A thing here, dont use a metal whatever to stir, unless you got a paper cup as he has. Use soft things, even wood. As lomg as it cannot spark or cause friction, and metal together with porceline is a very bad for self ignition ( has happened me once)
What class would a homemade motor this size be? Looks to be a C or D size, but what about the actual power?
ive made engines this size and they were approximately between a c and a d for power.
Nice work.
This is kind of exciting. Watching a guy put homemade rocket fuel in a tube and then beat on it.
The pounding isn't so worrisome, but I figure that someday the friction of drilling out the core is going to set one of these things off in my hands!
either don't make rockets or DRILL SLOWLY by hand
@Charlie Montana Actually in powder form and mixed with an oxidizer, it's pretty common to get self ignition. Adding sulfur just makes it more likely because it has a low ignition temperature... Just static electricity could light a cloud of it off.
When making sugar rockets I usually mix the sugar and KNO3 together with just enough water to dissolve them, put it on the stove and boil the water away. Take it off heat and let it cool a bit when it gets creamy white in color after it boils for a while, that means all the water is gone. After it cooled a bit but is still liquid, pour into your rocket, and insert a piece of magnesium sparkler in the center of the core as a fuse. It will set into a perfectly mixed anhydrous sugar and oxidizer solid fuel, and the magnesium sparkler will easily ignite it even without sulfur. Because the sugar is mixed better with the KNO3 by dissolving with it, you don't need the sulfur in there. It's also much safer to handle than in powder form.
Great video
Love the video.......crazy chemist ......note wash the stump remover and get 100 % .get the inerit. Out .........boil in hotwater.......evaporate
To all cheers....
M
Why thank you! And per the stump remover, Its already 99.9% pure kno3, no need to recrystallize. Per the msds its 100% pure actually, but that would be better than reagent grade.
Thanks for the video.
I had been wondering if sulfur would be a good burn rate catalyst for KNSU motors, considering that it serves that purpose in black powder. Though granted, I was considering a melt/cast or recrystallized propellant (ala James Yawn). I might have to experiment.
you might find it easier to load granulated mix made by wetting your fuel mix with a small amount of nitrocellulose dissolved in acetone and pushing through a screen. Granulated loading stock always makes for more consistent results compared to powder. We make huge colored smoke cartridges professionally and loading powder/dust is out of the question. You can find ping pong balls made of NC and use them.
I'm a lot more used to watching you review chainsaws! 😄, good tutorial though 👍👍
Chainsaws? Huh?
@@ElementalMaker i think he means you sound like AvE
You also can ( do it outside since it may burn) melt the sugar goo and cast it to cylinders.
You're like to see you actually launch rockets. Build some with shoots and launch them. Will be cool. Love your videos and got seen in awhile
Simply amazing and great to know. Thank you.
I just love this!
Spacex move over. These are like the ones I made in high school 60 years ago, but I used plaster of paris for nozzles and plugs. Was no pvc then (that I knew of) so rolled up paper tape. Half would explode. I used a black powder fuel wetted and slowly dried. Dextrin added to the fuel for binder.
Do you know like a recipe for powerful rocket fuel a thrust of 3 lbs or up
Good Job.
With the ingredients you already have on hand, Stump remover, sulfur, and some charcoal.
With KNO3-75%,C-15%,sulfur- 10%, now you have black power. Powder everything very finely. For a little more power add 10% powdered aluminum. Mix well put into tubes.
Now you have all the stuff to make your own model rocket engines.
Up, up, and away
I've made black powder many-a-time. Its fun stuff for sure! Benzolift is even better though!
What if you can get your hands on Ammonium perchlorate?
David Vermillion I actually have about 3 pounds of various size ammonium perchlorate, and a gallon of pban resin. I'm going to try to replicate nasas booster formula
cool, I was gonna make some nitrocellulose and combine it with ammonium perchlorate and powdered aluminum. Hope to see some good results.
David Vermillion awesome post the results! Love to hear how it performs
Red iron oxide is a good catalyst too if you have no sulfur. 1% by weight of the combined fuel and oxidizer. Rockite anchoring cement is also better to use as a nozzle.
You might consider ball milling it in a rock tumbler too.
If you use a ball mill, divide the mix into two batches that are in the wrong proportions, like half of the K-nite and all of the sugar, then the other half with all the sulfur. Carefully mix the two batches thoroughly in a pair of paper cups taped together to form something like a cone powder blender to get the final mix. A vibratory polisher with plastic media might also work. The two half batches won't burn properly, so they are relatively safe to mill to a fine powder.
Add some flash powder, or finely ground aluminum to improve combustion rate........
Definitely taking notes on this video. 👍
Don’t know much about chemistry so this might be a dumb question...but anyway, how do you know what proportions to use in making the propellant?
From narration
67g KNO3
27g Sugar
6g S
Originally, trial and error.
this is how NASA build its rocked engines :-D
The big secret is finding out how much weight to fule and theust. There's another fule you can use. Usually for modles I make my engines 3 to 4 inches long. But I have sent some 3 inch pvc with a 3 inch mortar beyond eye sight 😂
Your videos are much better quality than Jimmy Yawn's I watched years ago when I first made candy rockets! Well done!
Potassium perchlorate and sodium benzoate 70/30 would make a good end burning composition just like estes motors.
To the guy claiming he was the first person to use pvc for a rocket motor, I promise you you're not. The use has been around for decades by learning amateurs, but it's use is recommended to be extremely limited power given if you get a CATO you have plastic shrapnel everywhere which WON'T be detected via xray if its that bad
If you have or can get a metal lathe, you could build a rig, that would allow you to make a spike over which you place the rocket motor body. You then pour and tamp all of your rocket motor ingredients (the clay, fuel, etc.) into the motor body, and the spike automatically has a space already made so you never have to drill the motors again! :-) A mandrel if you will. The spike mandrel would allow for the hole you have to drill instead of having to drill it, and you would also have a tamper, that is designed with a hole in the middle that the spike mandrel fits snuggly into, so you can tamp the ingredients around the spike mandrel! :-)
Check out my newer rocket videos. I did just that. I made this video for people who don't have access to a lathe. I can make five massive motors on my 3/4 spindle setup in about ten minutes.
Hi there, really good video and greatly informative. How do I dry out potassium nitrate that wasn't stored in an air tight container please? Keep up the great work.
you can dry it in an oven at 150°C for 2-4 hours safely
Spread KNO3 out on cardboard or cookie sheet. Turn oven ON lowest setting, when hot, turn it OFF and put KNO3 in 'til oven cools.
I just blew up my moms brand new blender :-) Man she is going to be pissed LOL ..........Just kidding Hehehehe
I used to make sugar/potassium nitrate homemade rocket fuel years ago as a teenage kid and had pretty good success with some flying rockets....You took me back to my later teenage years watching this process and much more refined and accurate than when I used to make it :-) I had to stop buying the brown jars every week of potassium nitrate from my local pharmacy and when the pharmacist began giving me funny looks back then LOL I later learned that it was given in a dosage to military personnel to reduce their sexual urges when sent out on missions..... :-) Then for weeks I was too embarrassed to set foot back in the pharmacy :-)
Yes I remember when I sent my dad in the get some, and he came back and said "you know what this stuff is called? Saltpeter."
2nd visit to this site .I am using 1.5" black PVC x 7" long. I am having very little success with PVC tubing. Spent firework cardbord tubing I have GREAT success.My problem is the clay plugs on both ends.One or the other will fail and blow the fuel out the top or bottom sooiooo my next attempt I'm gonna seal the nozzle end AND top end with thick super glue and zip kicker.That should do it. I'm also going to make sure I drill the proper nozzle size cuz that could be also a problem. I'm also experimenting mixing some Gunpowder with my rocket fuel mix to give it a little bit more power and I've been having success with the cardboard tube Rockets. Iowa fireworks retail place not too far from me and I bought some mortar rounds and cut them open and got the black powder in the little hard balls out of them and I've been using them to supplement my rocket fuel.
a little powderd zinc will help also....if you can find old book ameature rocketry put out by edmunds in the 50s 60s has alot in it about building and fuels
Any idea what kind of fuel they use in those “Whistling Moon Travelers?”
They scream when they go off and imagine the sound of one ten times the size!
Those are made with a composition called whistle mix. IT'S usually K C L O 4 and potassium benzoate if I'm remembering correctly
Super cool
This is good info. However, you just showed us a small motor. If we used the same ratios, but a longer tube, would it function to push a rocket to higher altitudes, or would it not work at all?
It can certainly be scaled up. Check out my newer rocket motor videos. I also built an arduino based test stand to quantify thrust data.
Wouldnt narrowing the outlet provide more thrust as the gasses will propel at a faster speed?
Yes.
You should be able to boost the performance of this fuel by adding between 0.5 and 1% charcoal. This is not for the chemical reaction, but for the opacifying effect it has.
Great suggestion, I will have to give that a try!
@@ElementalMaker Let us know how it goes :)
Well??? How does it work?
@@andrewostrelczuk406 - A lot of the energy in the combustion is in the form of light. If the fuel is transparent to these light frequencies, then the energy is transmitted straight to the casing. But if you have charcoal in the mix, this absorbs the light energy at the surface and helps heat the fuel at that point, which means that less energy is used to turn the fuel into a plasma and more can be used to get the gases going out the nozzle faster. It is a small but significant amount.
I was thinking about the result of the mixture. Better results or same, or even diminished returns on the labor and experiment process. I hope that you don’t take this as dismissive to your explanation, that is fascinating. A bit of a wow effect!!! Back in my Middle school days We had a wonderful gifted science teacher, who got me started with Rockets, I was classified as a “Basement Bomber” for building my own design rockets... Got teased a lot about it till the day(s) for Launching. Then my Redemption was clearly much sweeter than the some of the other Popular kids designs. Most of which failed in some way... two of them were perfect in flight and recovery. I was amazed that my rockets had constantly developed broken pieces even before launch day and had to repair both on the launch day, balsa wood fins were broken most often. Thanks to my Mom giving me a tube of new Supper Glue, I was a successful Rocketeer.
I designed PVC motor in 1990 - I sold plan sets for years on how to make - this was before the internet -
as far as I know I was 1st to make PVC case - U should make Tamper trim off some make a step on end -
also a Lever Press works Much Better than Hammering - make from 2x4 -- nozzle was zink oxide or aluminum oxide
Why should they use a tampon?
What if you used a cone shaped bit to drill your exhaust hole? Would it increase your thrust?
With this size of motor, any increase in efficiency would be too small to actually measure except on the most sensitive of test stands.
The cheap cat litter I found had some crystalline silica in it. Is that okay?
Damn! Where were you when I was 12 years old?? They should start chemistry lessons with this!
On a more serious note:
a) do you reckon bits of cane or bamboo (dried up of course) would work instead of PVC? or would they not be able to hold the pressure build up?
b) instead of drilling the fuel, how bout drilling the dowel and then using a nail fixed to a round base that sits concentrically with respect to the PVC housing when packing it? You might need to lightly coat the nail with something in order to limit friction during removal - perhaps talcum powder. Do you think this could work?
Red rocket, red rocket red rocket red rocket!
Great vid!
But which one to you consider safer to make, this one or the KNSB?
Both are very safe propellants when done correctly.
ElementalMaker thanks a lot!
Drilling!? Agh no way dude! Innovative way to get around needing a spindle/tooling I guess, but damn dude that's too scary for me.
Yeah, that seems a bit iffy to me, but it seems to work.
1:06 can you please explain how you did it? Would the molten wax just clump up and make a mess?
You have to heat the clay powder up just past the melting point of the wax, and then thoroughly mix a very small amount of wax in while it's hot.
i got a real large tonka dump truck... can i move this up 20 times for say 40 mph?
Has anyone tried this but used 2" or 3" pvc or a cardboard tube? I've been experimenting using cardboard tubes as pvc tends to break down with the heat. My problem is that I need more thrust.
How stable is the fuel? Any chance of explosion when using the hammer on the fuel?
Way cool 😄
How did you melt the parafin into the bentonite clay and still end up with a fine ground product?
Just put a bunch of clay in a loaf pan with a half a block of paraffin then threw it into the toaster oven for about an hour at a low temp. The bentonite seems to absorb the paraffin very nicely. It clumped a little bit, but once cooled easily powdered again just by mixing with a spoon.
Swap the powdered sugar out for charcoal. Black Powder. Not going to give the exact mix ratios on here though, but some good research will give you the answers. If you want to get really keen you can wet-mix the ingredients in a gemstone grinder with stainless steel ball bearings in, allow it to air-dry to a thick paste, pass the paste through a fine sieve to granulate it and then let it fully air-dry before packing your rocket motor.
Cool thing he uses to move the powders. What is it called?
Greeting! Good video! When is a clay nozzle not needed? With smaller pipe diameters?
At 4:00 or so, when you really got going with your mixing, I thought the speed alone would have risked igniting your mixture. ;)
Great vid,thanks.
cappnzak this mix is not capable of igniting from friction or shock. Sulfur can make certain mixtures more sensitive but this is not one of them. Potassium nitrate and sulfur are relatively safe. (Except flash powders) If it was chlorate then that’s a different story.
I know this is 8 months later, but you need to re-watch at 4:02 to see what he's talking about . XD
Are your proportions of KNO3 , sugar and sulfur just basically gunpowder?
Does it scale well? Could I do a 4 inch diameter version?
I subscribed!
Thanks Joe!
When he starts putting in the Kno3 faster, and then you realize it's Time lapsd
In 2:26
@Robert Slackware wut
It's still timelapse
the use of the hammer makes me feel different.
a hand press would be more appropriate.
Cool!,
So, in theory this can be as wide and as long as we want? And will it be better if we make it longer ( stays in the air longer or launches faster )?
It's a different set of calculations. On a ported rocket, lengthening the port causes more volume to be burning at any one time and increases pressures, which could be good or bad, depending on where things are at. Changing the diameter can have an even more profound effect but then you pick up the issue of maintaining the clay plugs because the area on the plug increases much faster than the diameter or circumference and the amount of fuel burning at any point in time varies more as it burns from the port toward the outside of the engine and the area increases. If you switch materials for the plugs, you need to not exceed the pressures of Schedule 40 PVC by too much. It will take quite a bit of trial and error and you will want something that measures and records peak thrust and knowing the diameter of the nozzle to know where you are on pressures. They make some pretty big sugar rockets here on RUclips. Learning from those guys can get you into the zone you want to be in more quickly and you can take it from there.
Remember to grind your own sugar if your powdered sugar from the store has corn starch, it significantly slows burn rate
so could that be a main reason my fuel is slow?
@@NOVASOULJAH it would definitely be a factor, but things like moisture content and particle size/ distribution also play huge roles. Also the fuel has to be under pressure to burn quickly, if your only testing in open air then it will look pretty slow
@@aidanflanigan9532 thank you for helping me :)
A hydraulic press would be a great addition!
I really need to get one! Been keeping an eye out
How did you know that your final compound wasn’t pressure sensitive?
quicker to just pour it in surely lol also you can press tiar button so it goes to 0 then you wont have to do arithmetic :)
Jay Mee agreed! Forgot to hit tare between the KNO3 and sucrose, but nailed it for the sulfur
0:48 Potassium nitrate, sulfur and a source of carbon. That sounds strangely familiar!!!
Lovely blackpowder :)
you can smell it from here! =P
So are all explosions the result of reacting a fuel and an oxidizer really quickly? Are there explosions that happen completely without some form of oxygen?
Michael Knight most often they use oxidiser but some chemicals explode by reacting with themselves
@@michaelknight2342 Any strong oxidiser will work, obviously, oxygen from the air is easy to obtain. That's why the operators of sugar factories and flour mills are VERY careful, a factory full of flammable dust with every tiny fragment surrounded by oxygen can be fatally explosive.
Chlorine works nicely as an oxidiser, the reaction of hydrogen and chlorine, for example, is spontaneous except in darkness. The activation energy can be supplied by light. There's probably a RUclips video of it.
Some rockets use hydrogen peroxide as oxidizer and hydrazine as fuel. The WW2 V2 rockets used alcohol and liquid oxygen (I think). You could look up "hypergolic fuels" for more information and/or the launch escape rockets being (and that have been) used by NASA and SpaceX.
Any rapid chemical reaction that produces a lot of gases very quickly is an explosion, but if it's confined for the first fraction of a second, the gas volume builds up and it's more of a bang than a whoosh. If you look at a "banging" firework, it's small and solidly built to allow this.
Some explosives have their own oxygen, which is released when they get hot, or when they are pressurised. TNT and dynamite are examples of these. Again, it's about evolving large amounts of gas very rapidly.
Hello! How much paraffin must be added to bentonite clay to make a free-flowing mixture? How is mixing done? Thanks for the answer. I wish you success!
I just eyeball it. I heat the bentonite/grog mix in the toaster oven. Probably 1.5cups worth, and add maybe a tablespoon worth of paraffin wax
where did you buy your black box ?
A small paintbrush will do the job well instead of touching the drill.
Can you use Sweet and Low instead of the sugar? I'm on a diet.
jet li yes you can
@Goolius Boozler only in the state of California. 🤣
@@kreynolds1123 Well then you’ll just get cancer
jet li - Actually, it something like artificial sweetener Sorbitol works better. See others on RUclips that use it. However don't use it yourself for sweetener. Stick to real Stevia.
You know.... If you lengthened it a bit and filled it with about 400 to 500 grains of 2F black powder with green gold and silver flake inside instead of an ejection charge, in a disposable rocket that thing would make quite a BANG and colorful firework for the fourth!
No need to waste that much black powder. A few grams of flash will satisfy even the thirstiest boom seekers
@@ElementalMaker Well for most. But they're not me. :)
Heck my profile pic is a custom 37mm round I made for my 203 launcher on my AR, it was taken at just the right time.
I also competition shoot flintlocks so I'm always looking for the next big bang.
How many grains do you use for your ejection? If I wanted a decent boom at low powder use, I would think 70 Gr. with maybe some colorful aluminum flakes.
What is that an equivalent to, an E motor?
I subscribed and saved this video a while back. And it jogged my memory when we shot all our old stock of engines (12) today and I started pricing them. HOOOO BOY!! They must be putting gold dust in them now. There is only one company who makes them (I believe that's called a monopoly) and they.......are.......prrroud of those bad boys. I felt I had been violated just LOOKING at the price:( The price sticker on the old package of engines is $3.00 for three engines and I thought THAT was steep. And now? Fuggitaboutit.
That is the exact reason I learned how to make all my own rocket motors, (black powder-based) With the right tools I can make up to G-size motors. Mostly I make E30-size.
Been making my own rocket motors for nearly thirty years now.