You are doing what we did as 14 & 15 year olds 35 years ago. We discovered the benefits of incorporating black powder into the chute discharge as well as the stage separations. We made a 15 foot rocket with over 30 motors in various stages. We didn't know if it was successful because it went so high we could no longer see it. After a few minutes we spotted the three big chutes indicating that everything went as planned. I miss those days. After incorporating some black powder into launch, stage separation and chute deployment we went to a 0% failure rate. Before that the success rate for 100% everything, was at about 85%.
I used to fly Estes rockets, I bought one that was about 4 feet high and was said to reach 350ft, I thought I could do better. I designed a 1st stage that would hold 5 "D" Estes motors, two firing first, then two firing when the 1st ones burned out and finally igniting the last single rocket when the 2nd rockets burned out. While designing how I would get the rockets to chain ignite my friend calculated the dynamics of the flight. He came back the next week suggesting I should read his calculations before going any further. His calculations came to a max speed of Mach 1.2 and 10,000 feet high! I decided that needing CAA approval to fly a balsa wood and cardboard rocket probably wasn't a great idea and scrapped the project.
This comment is a part of CZcams Red exclusive content. If you're interested in viewing it, please go to CZcams Red store page in order to get access to awesome CZcams Red content and more! *This is an automated message*
As I have been ramming my own engines for some time, I have a couple of tips on this. 1. Add a pinch (about 1/16 of a tsp for your quantity) of red iron oxide. It acts as a catalyst to enhance the burn rate and increase thrust. 2. Place a piece of masking tape over the bottom of the engine. It helps to contain the clay. Pull it off just before drilling the hole. 3. Use rubber o-rings on the wooden dowel to help control the fluff of the composition when ramming.
Hello Grant, maybe I little tip : Is it possible to mention the metric dimensions also? Centimeters, millimeters for the drills and layers of stuff inside the rocket? ;) People in Europe will be thankful for that ;))
I could do experiments and builds like this all day, sucks to go to school and not even come close doing awesome stuff like this. Great channel you inspired me to follow in your footsteps.
*Hey guys, hope you enjoy the upgrades! The rocket building, and recovery wadding, tutorials are coming next, then I'm on to something completely different. Have a great weekend ... and Happy Halloween!*
If you're making successive markings over a distance, you should always measure from the same point and not from the previous marking: the latter will cause mistakes to add up
Warning: by heating up the potassium nitrate, it may decompose into potassium nitrite, which reduces its effectiveness. Please heat it up at approx. 100 degrees Celsius
If you drill a lengthwise hole in the ramming dowel, then put a small dowel in the center of the motor housing you can ram the fuel in and remove the small dowel to make a core burner engine, fill the core left by the small dowel with black powder. That way the whole core surface area burns at the same time. Much more power. Also water putty makes great rocket nozzles, and you can mold a power enhancing nozzle into it also.
Thanks for commenting this. The original instructions have me disappointing results. After adding your modifications it's almost exactly like the video if not better
Magnificent instructional video on the sugar rocket motor. I have built rockets many years and just got interested in building my own motors, since it is getting more difficult and expensive to purchase commercial engines.
+Panagio Tsaou Well, Diesel for example explodes by just compressing it, they don't need sparks in a motor. I bet that mix would also explode if you compress it enough.
+Matt Merrill The stuff's specifically sold for muzzleloading rifles, if all it took was a little ramming a lot of civil war era soldiers would have lost their hands.
Hey Grant, another amazing video! Would you still happen to have another MOT laying around, that you could make into another melter? I have recently been working on we-winding a MOT to melt metal, just like yours, and can't seem to get enough of the videos on them. It would be great if you could make another video on it, because I am sure people would love that. Thanks!
+apples apple Every ad on my channel is skippable. Unlike most CZcamsrs, I never enabled forced ads on my videos. If that's happening, get a screenshot and send it over, and I'll contact CZcams about it. Thx.
we used to melt the mix and cast motors. The fuel was pored over a tapered piece of wood which when removed left you with a burn chamber. You would lose sight of them. Fast too
hey, when I was in my late teens, I was trying to get my niece into science with rockets. But even though the "rocket starter switch" cord provided was long, and we launched it INSIDE my car, with the door open, I gust if wind blew it over just as it was launched and it came right at us!!! So I then learned how to make wireless firing systems to get more distance when launching. I've been able to make: -infrared firing system ( about 50ft ) -radio wave ( about 300ft ) -cell phone ( limitless, I guess... ) If you ever want to make a video on how to make wireless firing systems. I made 3 schematics, 1 for each type, and provided them to my local hobbyshop. And will gladly provide them to you. Ironically, the cheapest to make is the cellphone version...
What I like about this project is that it is not only very affordable, but easily scalable: You can use longer and/or wider PVC tubing with more propellent in it and/or add multiple tubes to your rocket to get even higher altitudes! I wonder how big of a tube you can use before the laws of physics make it impractical? (i.e. Can an 8 inch diameter PVC pipe contain the resulting internal pressure and would its added weight not be worth the effort?) Very nice! JW3HH
One thing you might consider doing would be using a piece of PVC with threads on both ends, and then you could make a proper nozzle that would use the fuel more efficiently and still be able to refuel quickly. Just be sure to use something highly temperature resistant on the lower set of threads so nothing fuses together when it gets hot. (I'd have to give some thought as to what to try, but teflon might be a good start.)
I would totally do it but getting potassium nitrate in Germany isn't as easy as it is in the US. And importing "stump remover" from the UK or the US from Amazon isn't really cheap and would certainly cause problems at shipping
"and when you get close, slowly drill the rest of the hole by hand, The instant you see a little bit of white powder at the tip, you know you have arrived, so dont go any further!"
I don't know about self ignition, but it's the carburant of the rocket, and black powder get enhance greatly by this coumpound. the sugar is the oxydizer and slow the burning process. a 50/50 mix would be a slower combustion than 65% saltpeter 35% sugar.
This brings me back. 15 years ago when I was 11 model rocketry was my thing. I had tons of estes rockets a-d size, but that was when walmart used to carry them in stock. My fave was the two stage d rocket kits. Ahh those were the days......
Dude, make *A BIG* rocket, an overpowered version, instead of a small rod, make a rod like 2 cola cans tall and diameter If you do such a majesty, it will be very fun to watch it loosing itself in the sky. It wouldn't be thaaat expensive, but you're the enginer here to know if and how :)
Can you increase the "white mix" propellant section for a higher flight? Maybe make the delay section longer to compensate? Or are these specs calculated out specifically.
What are the measurements to make a smaller motor, say a "C" or a "B", something that would only go roughly 500 feet? I don't have to drive as far for a smaller motor.
That was great, and I never launched anything (well, maybe my mom when I colored my brother with permanent markers). 6:59 was brilliant, it brought it altogether for me!
Do you know if there is a way to get a slower, more efficient burn? I wanna make sure my rockets go as high as possible for as long as possible, and a burn of about 3 seconds doesn't sound good enough for maximum efficiency. Even if it's just a second or 2 longer, it'll probably make a major difference. I'd make the engine longer and increase the quantities for the white poder, but unfortunately I don't exactly know much about pyrotechnics and how it'll react.
Just use the delay mix for the whole rocket with only one gram of baking soda instead of three grams,it seems the baking soda slows down the burn rate 👍
What do you do to keep the pvc from lighting and or melting? In my experience a heat shield casing of cement or plaster is the only way to keep the fuel from lighting the pvc; ie why the world uses wax coated craft paper, fire retardant pressed cardboard or aluminium tubing.
@Grant Thompson, my kids and I are building everything you have done with the screw lock sugar rockets. We live in Arkansas. Now the neighborhood kids are all into science and making all sort of science experiments. I have a couple of issues with my sugar rocket not going too far. Only the top and the parachute get launched and the rocket stays put on the launch pad. Any pointers? By the way, please keep them coming!!
Rip a legend that will live on forever
F😔
😔
What?? Is he no more??
He literally uploaded today
Matias Bahamondes he means grant
for the rest of the world:-
35mm Clay
45mm Delay
108mm White mix
127mm Clay
254mm
not all heros wear capes
+wacka thank you!!!!
I don't understand why the country with the largest space program still not uses SI-units…
+wacka Also, 300 degrees Fahrenheit isn't 165 degrees Celsius - it's (almost) 150 degrees Celsius xD
+wacka whaahaaahaaa I fucked up the 69 likes
You are doing what we did as 14 & 15 year olds 35 years ago. We discovered the benefits of incorporating black powder into the chute discharge as well as the stage separations. We made a 15 foot rocket with over 30 motors in various stages. We didn't know if it was successful because it went so high we could no longer see it. After a few minutes we spotted the three big chutes indicating that everything went as planned. I miss those days. After incorporating some black powder into launch, stage separation and chute deployment we went to a 0% failure rate. Before that the success rate for 100% everything, was at about 85%.
I used to fly Estes rockets, I bought one that was about 4 feet high and was said to reach 350ft, I thought I could do better. I designed a 1st stage that would hold 5 "D" Estes motors, two firing first, then two firing when the 1st ones burned out and finally igniting the last single rocket when the 2nd rockets burned out. While designing how I would get the rockets to chain ignite my friend calculated the dynamics of the flight. He came back the next week suggesting I should read his calculations before going any further.
His calculations came to a max speed of Mach 1.2 and 10,000 feet high!
I decided that needing CAA approval to fly a balsa wood and cardboard rocket probably wasn't a great idea and scrapped the project.
This is one of the only projects I tried from him and it worked perfectly, miss you man. RIP
Yo dude, can you please tell me from where you got the FFFG Equivalent Muzzle Loading Propellant?
Your kids are gonna end up being awesome engineers! :D
+TheTman9898 *(CZcamsRed Exclusive comment)*
+Peter Newport true
+TheTman9898 or terrorists :)
This comment is a part of CZcams Red exclusive content. If you're interested in viewing it, please go to CZcams Red store page in order to get access to awesome CZcams Red content and more!
*This is an automated message*
Or terrorists
How is there 1000 dislikes? This is so professionally made and easy to understand!
Ah, I remember a time when you could see how many dislikes a video got, though it is true that this was very professional and easy to understand.
It's just a bunch of karens who think this is too dangerous to do at home and he shouldn't be teaching this kind of stuff
@@wolfundfuchsmusik1514 this video currently has 1,644 Dislikes
@@editingtimothy now 1.7k
Idk I think he screwed some things up. With the nozzle size he says to do they barely get off the ground. I went down a few sizes and it works fine.
As I have been ramming my own engines for some time, I have a couple of tips on this.
1. Add a pinch (about 1/16 of a tsp for your quantity) of red iron oxide. It acts as a
catalyst to enhance the burn rate and increase thrust.
2. Place a piece of masking tape over the bottom of the engine. It helps to contain the
clay. Pull it off just before drilling the hole.
3. Use rubber o-rings on the wooden dowel to help control the fluff of the composition when ramming.
Hello Grant, maybe I little tip : Is it possible to mention the metric dimensions also? Centimeters, millimeters for the drills and layers of stuff inside the rocket? ;) People in Europe will be thankful for that ;))
PressTube We only use the measurments that put a flag on the moon sir...
lol, catch up with the rest of the planet.
I prefer the measurements of the people that reached space first
RD19902010 the Russians used the metric system. (And yes, they did put a person in space before the USA.)
+Press Tube and people in Australia!! :)
why isn't everything on CZcams made this well?
Seriously! I thought the content was pretty cool, but what really impressed me is how fast the information is conveyed and how clear it is.
Idk bout all the comments but the rockets are dope as he'll thx so much
I can't get my hands on the black powder. Is there any other subsitute that you are aware of, which has similar properties/effects?
@@Nick21012 you can make your own
I could do experiments and builds like this all day, sucks to go to school and not even come close doing awesome stuff like this. Great channel you inspired me to follow in your footsteps.
School isn't for learning stuff, it's for indoctrination. Avoid.
*Hey guys, hope you enjoy the upgrades! The rocket building, and recovery wadding, tutorials are coming next, then I'm on to something completely different. Have a great weekend ... and Happy Halloween!*
first
I love your videos they really inspired me I am thinking about doing the exact same thing as my channel but keep up the good work
-Jacob
hey grant, if you reply i will cry with joy
+Grant Thompson - "The King of Random" Grant - your videos are consistently awesome have a great weekend m8
happy halloween
LOL this powder is flammable and should be treated VERY carefully
*beats the daylights out of it with a mallet *
This is amazing! In Australia we had model rockets but were slowly taken away with the permits that were required...
After watching this video I've decided to do something a lot less complicated... I'm going to build my own personal hadron collider instead.
AH, yes. The perfect weekend project.
POV: you’re here to watch the OG videos from the legend. RIP
If police found this stuff in my apartment I'd probably be accused of being a terrorist lol
they will...its not that fun
+tubeyourself On second thought,they will.Don't ask me why.
I wouldn't use these for fun, I'd use them to burn my enemies face.
i would make a RPG from it :D
BSM Patty Hearst? Dang that's gotta make you, what like 300 years old? lol
If you're making successive markings over a distance, you should always measure from the same point and not from the previous marking: the latter will cause mistakes to add up
That is something i did not tough and is totally logical!
I can't get my hands on the black powder. Is there any other subsitute that you are aware of, which has similar properties/effects?
Warning: by heating up the potassium nitrate, it may decompose into potassium nitrite, which reduces its effectiveness. Please heat it up at approx. 100 degrees Celsius
Rub it with sandpaper if it doesn't fit. Ram it down. Start drilling and pull out when there white stuff on the tip
that sounds painful, just try astroglide
....
Turn the bottom over so the motor is facing up.
Tony F flows down the hole
Tony F Filth!
Next video:how to make nuclear warhead in 3$
If you drill a lengthwise hole in the ramming dowel, then put a small dowel in the center of the motor housing you can ram the fuel in and remove the small dowel to make a core burner engine, fill the core left by the small dowel with black powder. That way the whole core surface area burns at the same time. Much more power. Also water putty makes great rocket nozzles, and you can mold a power enhancing nozzle into it also.
Thanks for commenting this. The original instructions have me disappointing results. After adding your modifications it's almost exactly like the video if not better
hi i made this progect but it just ended up with just smoke blasting out and some weird acid
+revoltech danboard did you put it both of the caps(kitty litter)?
Your presentation and explanation is outstanding!!! Your calling is Explaining interesting videos!! Nice work!
Rocket fuel: **Highly flammable**
TKOR: I’m gonna throw it in an oven at 300 degrees Fahrenheit
Rocket fuel: Am I a joke to you?
yingxia wei HAHAHAHAHAHA FINALLY A JOKE AND A COMMENT NOT ABOUT HIS DEATH
It’s not combustible until it’s mixed with the sugar.
He bake the KNO3 only
I can't get my hands on the black powder. Is there any other subsitute that you are aware of, which has similar properties/effects?
@@Nick21012 I mean... Gunpowder or any other explosive.
That was so cool! I didn't know making rockets was possible! The editing is superb as well.
Magnificent instructional video on the sugar rocket motor. I have built rockets many years and just got interested in building my own motors, since it is getting more difficult and expensive to purchase commercial engines.
1:40 this is why everyone else in the world uses the metric system.
ikr
If you can't convert units you shouldn't be building rockets. :)
There is a reason SI units were invented
Cheeky Peach
+Cheeky Peach The pipes were in inches.If the pipes were in centimeters,then he'd use centimeters.
"needs to be protected and treated with respect"
*rams it down"
+Panagio Tsaou
Well, Diesel for example explodes by just compressing it, they don't need sparks in a motor. I bet that mix would also explode if you compress it enough.
+Matt Merrill The stuff's specifically sold for muzzleloading rifles, if all it took was a little ramming a lot of civil war era soldiers would have lost their hands.
How else would we compact it?
+CelmorSmith this mixed ignites at about 600 and something degrees so i dont think pressure will set it off.
+ootie extreme there is no other way
Hey Grant, another amazing video! Would you still happen to have another MOT laying around, that you could make into another melter? I have recently been working on we-winding a MOT to melt metal, just like yours, and can't seem to get enough of the videos on them. It would be great if you could make another video on it, because I am sure people would love that. Thanks!
I want you on my team when the zombie apocalypse comes.
can i be too? :-P
+MChris GM no! no ones like you!!!
+MChris GM no! no ones like you!!!
Me too! Then we can launch zombies into the air! :D
Can I be in yer team too?
Awesome video. Brings back the 80's. But with Quad Copters ... and HD Video, these things can no longer compete.
OMFG 2 minute Grammarly ad with no skip, why youtube, why?
+apples apple Every ad on my channel is skippable. Unlike most CZcamsrs, I never enabled forced ads on my videos. If that's happening, get a screenshot and send it over, and I'll contact CZcams about it. Thx.
Good guy Grant.
Let's you skip adds
Adblock...never suffer from ads on vids again :)
Yeah but youtubers wont get money so rip
+apples apple I didn't get an ad at all (and I don't use ad blocking). Weird.
REST IN PEACE BROTHER 💙
very cool to watch. REally appreciated the transparent tube demonstration.
we used to melt the mix and cast motors. The fuel was pored over a tapered piece of wood which when removed left you with a burn chamber. You would lose sight of them. Fast too
Bertram Brinely. I had that book. They're worth $200 these days.
Inspiring! Thank you! And, the pitch at the end wasn't annoying either. Keep up the good work!
when you say "with little added force", I think "oh, it's easy then".
Then, I look at your biceps.
07:28 Wow. Those must be the best placed fins I've ever seen. Way to go man! Perfect Precision.
Awesome video, the part where you did a quick roll move over the mattress was classic!
Better and better all the time, Grant. Soon you'll have it landing with rockets instead of a parachute!
It has been 6 years and yet he did not do it. I am actually sad!
It is 3 AM why am I watching videos on how to make your own rocket fuel?
So when you do get to sleep, you can rocket off to Dreamland!
It's literally 3:01 for me
Lol a year after this comment I'm watching this at 2 AM
Cliff Reeser to start our own nuclear missile program duh
Yaaaa?!
Dude, you are a genius. I had no tools and no internet in my day. I bought my engines from the hobby store.
hey, when I was in my late teens, I was trying to get my niece into science with rockets. But even though the "rocket starter switch" cord provided was long, and we launched it INSIDE my car, with the door open, I gust if wind blew it over just as it was launched and it came right at us!!!
So I then learned how to make wireless firing systems to get more distance when launching.
I've been able to make:
-infrared firing system ( about 50ft )
-radio wave ( about 300ft )
-cell phone ( limitless, I guess... )
If you ever want to make a video on how to make wireless firing systems. I made 3 schematics, 1 for each type, and provided them to my local hobbyshop. And will gladly provide them to you.
Ironically, the cheapest to make is the cellphone version...
What I like about this project is that it is not only very affordable, but easily scalable: You can use longer and/or wider PVC tubing with more propellent in it and/or add multiple tubes to your rocket to get even higher altitudes! I wonder how big of a tube you can use before the laws of physics make it impractical? (i.e. Can an 8 inch diameter PVC pipe contain the resulting internal pressure and would its added weight not be worth the effort?)
Very nice!
JW3HH
I clicked on this because I had no idea what screw lock sugar rockets were
same
Ditto
One thing you might consider doing would be using a piece of PVC with threads on both ends, and then you could make a proper nozzle that would use the fuel more efficiently and still be able to refuel quickly. Just be sure to use something highly temperature resistant on the lower set of threads so nothing fuses together when it gets hot. (I'd have to give some thought as to what to try, but teflon might be a good start.)
you are too cool!
what an excellent video!
i wish there was something like this when i was a kid back in the 70s! lol
i loved model rocketry!
This is the only section of youtube with intelligent people lol
it used to be until you commented (jk)
+Official Leo1331 OHHHHH BURNNNNN 😁
:)
until you find yourself explaining why you need a ton of potassium nitrate.
Thanks dude!^^
are u sure that source of potasium nitrate is ok? I was stumped on which one to use. lol
why just whyyyyyy
Love that he "safely" handles these nice explosive mixes in plastic... yay static. One day he'll be in orbit.
Cool, I'm getting a casper mattress when I move soon! Nice tip!
That screen shot looks like a bunch of chillums with weed stuffed in them
not really ...
but yeah
thought that too
I bet you could still get sky high with those rockets 😁
I love watching this but would never make any of it
Yesssss same
me too
Same here, all his videos are fun to watch but I wouldn't do any of it.
I would totally do it but getting potassium nitrate in Germany isn't as easy as it is in the US.
And importing "stump remover" from the UK or the US from Amazon isn't really cheap and would certainly cause problems at shipping
YES YOU CAN! NOTHING IS IMPOSSIBLE! DON'T LET YOUR DREAMS BE DREAMS! JUST DO IT!
"Gently swirl it around"
*SHAKES IT WILDLY*
I haven't launched a model rocket since I was a kid and now I want to do it again and make some motors. Cool video.
"and when you get close, slowly drill the rest of the hole by hand, The instant you see a little bit of white powder at the tip, you know you have arrived, so dont go any further!"
Fun tip. Don't dry the powder in an oven that has open flames.
Potassium nitrate is not flammable, nothing will happen.
I don't know about self ignition, but it's the carburant of the rocket, and black powder get enhance greatly by this coumpound. the sugar is the oxydizer and slow the burning process. a 50/50 mix would be a slower combustion than 65% saltpeter 35% sugar.
This brings me back. 15 years ago when I was 11 model rocketry was my thing. I had tons of estes rockets a-d size, but that was when walmart used to carry them in stock. My fave was the two stage d rocket kits. Ahh those were the days......
Muy buen video, gracias por los subtitulos, saludos desde Argentina
Dude, make *A BIG* rocket, an overpowered version, instead of a small rod, make a rod like 2 cola cans tall and diameter
If you do such a majesty, it will be very fun to watch it loosing itself in the sky.
It wouldn't be thaaat expensive, but you're the enginer here to know if and how :)
Or you can just make your own foam mattress for a tenth of the price.
Excellent video, good talking sound level, music just right at that level, good instructional video, and good mattress add at the end,
this is my new favorite channel
Oh rockets again! Different projects please. More variety please. Rockets are boring after watching them 20 weeks in a row
I agree
+ItS MaCe xXxXxX true, I agree!
+Random Guy hey bro
there'll be one or two more, sorry.
+Random so random I like it
Can you increase the "white mix" propellant section for a higher flight? Maybe make the delay section longer to compensate? Or are these specs calculated out specifically.
I have been wondering the same thing
Great job, excellent, thank you, inspiring.
Grant is the coolest guy in history.
What are the measurements to make a smaller motor, say a "C" or a "B", something that would only go roughly 500 feet? I don't have to drive as far for a smaller motor.
The thumbnail looks like a stack of blunts
not really
This is one of the coolest vids I have ever seen
Thanks you helped me towards making vertical lift of for my rc plane 😄
I wonder who actually makes all of these stuff.
Me too
I do
Sasha Samarin Really?
Yeah. I made loads of his stuff, including this.
Sasha Samarin Interesting.
"I'm shaking this up by hand to avoid any extra friction" *proceeds to smash it with a wood pole*
Honestly these old style videos were so much better than the new ones
That was great, and I never launched anything (well, maybe my mom when I colored my brother with permanent markers). 6:59 was brilliant, it brought it altogether for me!
Can you make one with multiple Stages? (I am Not a Rocket Scientist and this is definetly a Solid Fuel Booster XD)
Thats really cool, an you possibly do DIY laser tag???? DIY laser tag
please grant
Now that's an excellent tutorial!!
I love your work. please, please make more videos on rockets
Some quick links to a few of the materials I used:
Screw lock sugar rockets
[✓] 12” x 3/4” PVC sprinkler riser: amzn.to/2cH4URc
[✓] Spectricide stump remover: amzn.to/2bXudia
[✓] Powdered sugar: amzn.to/2bXsTfe
[✓] Uncented kitty litter: amzn.to/2cG52NZ
[✓] Magic bullet: amzn.to/2cG5Gen
Please how do you put the wire that ignites the rocket? I don't understand what I should do to keep it in the place. Thanks.
T
Grant Thompson - "The King of Random" I love u
*****
Be renamed/change name. Your entire channel name is scorchplated and will harm a 301 player
Why are you not making sense?
Do you know if there is a way to get a slower, more efficient burn? I wanna make sure my rockets go as high as possible for as long as possible, and a burn of about 3 seconds doesn't sound good enough for maximum efficiency. Even if it's just a second or 2 longer, it'll probably make a major difference. I'd make the engine longer and increase the quantities for the white poder, but unfortunately I don't exactly know much about pyrotechnics and how it'll react.
Just use the delay mix for the whole rocket with only one gram of baking soda instead of three grams,it seems the baking soda slows down the burn rate 👍
Sounds like fun. Thanks a lot. I will try this out some day.
beautiful as tips to speed combustion addition of cold acetone...very strong
1 7/16, 1 12/16, 4 1/4, 3/4, 5/16, 2 1/2, 3/4 .... good God, I don't know how Americans do it :(
Our rulers have longer lines to signify half inches and quarter inches from the 16ths of an inch. I hope that answers your question.
+Hugh Jass What he is saying is that those decimals are RIDICULOUS. 1/10 or 1/100 like metric is so much easier.
+EoRdE6 Fractions. I love them.
+BC ElginTex said no one ever
Blake Matthews LOL
i made the rockets but they just end up with smoke flying out of the bottom!
Wow, loved every second of it, i wish I could get my hands on that stuff, but here in the uk 😎 "black propellent powder!!?😩 oh god, yes please.
8:27 that was smooth AF mate
Rocket fuel can't melt space station beams
LO friggin L....
Aahhh, you...
I can't get my hands on the black powder. Is there any other subsitute that you are aware of, which has similar properties/effects?
3:27 Grant, what if i use the "candy" fuel, the one with the cooked sugar and potassium nitrate? Will that work instead of the white mix?
No difference.. only differnce is the way the fuel is prepped and loaded
I mainly got from this: I want that ad-placement matress. Looks comfy af
super well done. thanks!
pause at 1:54 and just think about the metric system for a bit
this is why the metric system is the best
Whether you measure something in inches or centimeters, it doesn't change its SIZE.
Metric system is sooooo much easier
Didn't look exactly difficult enough to need Captain Metric to save the day.
roboshuffler555 metric system is for slow people :)
"Highly flammable"
*places in oven
The same when he wacks it with the stick and hammer
bruh potassium nitrate itself is a salt and non flammable
That is what I realized after testing it
What do you do to keep the pvc from lighting and or melting? In my experience a heat shield casing of cement or plaster is the only way to keep the fuel from lighting the pvc; ie why the world uses wax coated craft paper, fire retardant pressed cardboard or aluminium tubing.
Thanks wonderful SHARING this
Happy holidays.
use the international system plz, with meters
Mr. Thompson. Would you kindly share an estimate on the force outputted by your rocket, in Newtons. Thank-you.
Yeah, everybody knows that... But we don't know the velocity... -.-
Any chance we could see how well this design can be scaled and/or modified for multiple stages?
@Grant Thompson, my kids and I are building everything you have done with the screw lock sugar rockets. We live in Arkansas. Now the neighborhood kids are all into science and making all sort of science experiments. I have a couple of issues with my sugar rocket not going too far. Only the top and the parachute get launched and the rocket stays put on the launch pad. Any pointers?
By the way, please keep them coming!!