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Found an interesting little game you might like its called The powder toy and you can perform all kinds of scientific experiments by designing engines to just mixing elements etc.
The data I have on the D12-5 from Estes is a total impulse of 17 Ns so you could say it's righ on the money. What I do not understand is that the C6-5 should have a total burn time of 1.7 seconds and yours is much longer. My data also say 10Ns total impulse on the C6-5. If I'm not mistaken the delay charge should be the time after motor burnout and heard that 1 second +/- should be an acceptable tolerance, by Estes, of the delay charge . Why it is also important to me? I have a model with separating boosters and this data should really ruin a succesfull flight with the C6 propellant block as a booster.
I watched the video again in slow motion and it looks like you have a burn time of around 2 seconds on the C6-5... could be something wrong with your graph . Ow btw.. you are one of my favourite channels.
Ah I also have the same table as you have from Estes and that also says 20Ns on the D12... so 2 different data sheets here :( on the C6-5 the data is identical.
@@RealDeanWinchester What? Dude you conversationed into the wrong boobs, or whatever we were talking about... Now I'm confused more than my baseline confusededness. Edit: Turned a we we into a we were, by magic!
When i go to hobby lobby my girlfriend says she always wants to look at things we dont have at home and what she needs, and she is always looking at the power tools even though we have lots of them, i cant figure it out :P
This was fun! I always wanted to build a test stand for these motors when I was a kid, but the rocketry phase of childhood gave way to the radio controlled airplane phase before it happened. By the way, not all of us have the attention span of a meth addled chipmunk, so please do include data and theory as you see fit. I don't think you will chase all your viewership away with a couple graphs and equations. Cheers! 👍👍👍
@@chemistryofquestionablequa6252 Yeah, we did that too. Good fun, but very hard to hit anything! We also put bomb drop clips, fins, and little nose cones on 12 gauge shotgun shells. We would take out all the pellets, of course, and load the empty shell with all sorts of "energetic" stuff. It sounds like we would have been good friends! Cheers!
@@ElementalMaker Just as a cheap substitute. There's a lot of different shapes and volumes that are good for storing various things that need to be stored in glass containers. They also run a sale a few times a year where you get 50% all glassware there.
Love your videos! My father was a Rocket Engine Scientist, Minuteman & ICBMs in the 50s-early 1980s. Cold War Days... before that was the B-52 wings to fuselage connection. He had me Reloading solo at 9 then backpack to 13,000 peaks solo all 4 seasons with a day pack fishing pole and a Remington bolt action 22 LR. Live off the land. I was lucky to had a father as he! Mother? She was raised on a real Homestead in N. Saskatchewan.... she knew to! Hahahahaha thanks for your work!
If you are looking for something to do with the other engine half, you could clamp it to a sheet of Pyrex and ignite it and watch it burn. It would have some weird internal geometries, so it wouldn't quite be 1:1, but it would still be neat.
ah yes... the good ol' days when you could get your 8 year old a chemistry set containing a big jug of Plutonium Tri-Cyanide, a large can of Lead paint, and an "experiment" that resulted in Anthrax spores that had pink eye and head lice. damn man... those were the days.
Was I the only one who got additional pucker factor when seeing the band saw push rod was metal? I was worried it'd spark when hitting blade, but wasn't sure about material...
if you have just one or two projects in mind, contact Destin at Smarter Every Day and set up a collab. he has the highspeed and the interest in this sort of project.
For high speed cameras I only know about the Chronos 1.4, but then you probably already know that one. Not exactly cheap either, but very capable at least.
"Thats how I got G.P. as a kid.." As a 35 yo kid, wow, I thought it was something other then gp more like sugar kno3. As a 35 yo kid dad to 3 sons. " Hey boys, let's go do some cool science" I now stare in Berkland air reactor, thinking about the kno3 and sodium bisulphate pool ph stuff, but knowing I got a hotplate and some drain cleaner.. Oh. Quick update on a video I have not put out yet.(cause my bud who wanted to do the editing decided to disappear with the vid.. its ok, we all have them days) I have Silver Nitrate and am growing potassium Ferrocyanide crystals 🔮. Like is good.
So, a couple of questions: 1.) These were black powder (KNO3+C+S) .... how does this thrust curve compare to the equivalent grain of rocket candy (KNO3+C12H22O11)? 2.) In the grains you make with rocket candy, you have a complete tunnel through the center, whereas these just have a small notch at the bottom... What is the advantage in the full tunnel?
We used to launch HUNDREDS of Estes rockets and ones we just started making from stock cardboard tubing, fins and cones at the nearby golf course in the mid to late 70s. We had an awesome hobby shop in town back then and as for the custom-made rockets? 5 stages? Possible but it'll break apart every time before you get to 6 stages, unless you build something really wide, trust me on that. lol Btw, I found you from a shout-out on NightHawkInLight's channel. Fair to say, he's real grateful for all the help he got from you on the synthetic ruby experiments. Keep up the good work! *Liked&Subscribed
Lots of CATO's (Catastrophic failure at Take Off) can be traced to motors that have gotten damp (black powder LOVES moisture) and then dried. Cracks in the fuel grain...more flame-fronts than the casing can deal with...BOOM. I was getting ready for Certification with an I-class re-loadable [Dr. Rocket] motor when September 11th happened; all fuel became unavailable, all permits cancelled. I regret choosing to not continue building rockets.
I like how agile and entertaining your channel is. I would like to see things in more detail, though. But, anyway, it is very interesting . Congratulations
Well for a slomo camera, the Kronos is a safe bet if you have 3 or 4 thousand canadian kopecks, and they're made right in canaderp ! If you got a bit less beef, the Sony RX10 II or the Sony DSC-RX100 IV might be worth looking into, just found out about them, can doo approx 1000fps max in full HD, still a grand though. Great vidja as always !
I think a smartphone is probably your best option for high speed video, probably a Samsung or Sony. If you don't need/want a phone upgrade, you can import one of the cheaper ones from China that doesn't have good US band support, like Xiaomi/Huawei/Honor/Realme. Though it seems like many of them interpolate video for the highest framerates, newer models might still be competitive given the price. Real hardware 480fps should be trivial to find, 960fps looks available on select models, and some models might even have actual 1920fps modes (though actual capabilities are hard to confirm).
The Fuji WS5000 has 450FPS and is about 300 bucks. IDK if you need more than that. The camera most YTers are using Crow-nos is the cheapest for real slow mo cameras for sure. Don't know how it's spelled.
I have continued to launch Estes rockets as an adult, but it's been a while. I've got several kits I need to build. Growing up, our shop teacher taught us to pack the igniter in with a pinch of ejection wadding, which worked great. The plastic plugs are a little different but work well. Lots of people had trouble had trouble with igniter reliability, but with care I've launched 2- and 3-engine clusters maybe a dozen times with only one half-ignition. One thing I always wanted to try is a manually operated ejection using a radio for RC planes. Maybe even two stage for a high altitude rocket. But what I should really be doing is getting into high power rocketry. Side note: the needle nose pliers on your bench look nearly identical to one I inherited from my great grandfather. Crescent brand, "Made U.S.A." (natch' 😉) and has "CRESTOLOY" on the back. I love it.
Hell yeah that is cool glad you got your fingers still from cutting them motors apart. Another thing I agree today's science kits don't have the goodies like my mid 70s skill craft chemistry set did. I think it's messed up how consumer safety politics get in the way of our fun hobbies. I think we need to defend our rights as adults to buy chemicals we need with out all the b.s. fireworks and rocketry always was my hobby and will till I kick the bucket 😆🚀🎇🎆💣😎👍👍great video thanks for sharing be safe
I actually keep this bookmarked... ENJOY :P www.rocketreviews.com/index.php?action=motors&tab=search&motorssearch=Estes I wonder if you drilled a hole through the middle of the charge and put the igniter all the way at the end.. would it increase the thrust?
You know what happened to dumb kids? They didn't make it! It's sad but suck starting your Ford f150 isn't recommended and your mattress body armor to stop a truck have frighteningly similar outcomes.
I use a Samsung phone for slow mo with rockets. Ever since the galaxy s7 they support a "super slow mo" mode that records at 720p 960fps for up to half a second. It won't get the whole burn duration but for something you can get cheep on ebay, it's not bad.
One of the more affordable high speed cameras I know of is the Chronos high speed camera. Also I believe that some Samsung phones can actually record up 960fps I’ll be it at a low resolution but still adequate enough for some applications.
Brother if you've worked your way up to double D's during the pandemic we need to have a chat about your diet. And watching the ignition brought me back to my (mis-spent) youth and these motors. I used to salvage the battery packs from polaroid film packs for my ignition box. If I recall they made 6v and they had a great shelf-life and were basically garbage so no problem in getting them after someone used up their pack of film.
@1:15 - Unrolling fireworks - When I was 12, we lived in Hawaii. At that time (1981), fireworks of ALL kinds were legal in the state. There was a store called "Holiday Mart" like K-Mart. During large holidays, the store removed the ENTIRE toy section of the store and replaced it with fireworks. I'm talking 10,000 count rolls of firecrackers on pallets. My dad was a HUGE kid and would spend lots of money on goods. Fast forward - I would accumulate and unroll everything I could get my hands on for as long as it held my attention then I would light it on fire. I'm lucky I still have all my fingers. There were several HUGE mushroom clouds out on the lanai. I used to rig Revell models with strings of crackers to simulate battle. It was the home of Pearl Harbor after all.
Lol, i paused your video as soon as you showed the engines and went on to say what i used to do with them and a few tales. I restarted and you did it too! :D
Try chronos slow motion cameras cheaper than the phantoms. I remember back in day their was a company called experilab in South Africa where I grew up, they sold kits to hammer your own rocket engines together. Aluminium rod with brace and cardboard blanks had to make our own mixes would be a good starting point to mess with those ratios. Esties were quite expensive all the way down south for us then. Now in the UK it’s whole different ball game here.
I probably should have said the you might have been able to desensitised the rocket motor by soaking it in oil. Works with cordite... But Where's the fun in that, some exothermic bandsaw action sounds fun
Hi, I'm an amateur who studies 'everclear propellent'. I want to know how to calculate the burning rate when the internal pressure of the chamber is 6 Mpa. Can you help me?
I suggest you contact David from Tesla500, speak with him about promoting his device and either get an older model, a demo model or some form of collaboration with him. I'm sure you know what his Chronos camera is capable of and you're getting up there in subscribers, man.
ahhh yes. I remember as a kid cutting open one of those round smoke bombs, and putting it on the end of a C engine with rubber cement. Lighting it off and the instant horror of a rocket engine flying haphazardly into the neighbors yard then letting out a plume of blue smoke. Thankfully the neighbor wasn't to mad about the dead grass where it burned up, but boy was that a lesson in aerodynamic stability.
I drilled out the propellant grain to turn it back into BP. With a power drill. Never had one go off, but in retrospect that wasn't very smart on the part of 10 year old me.
There is an interesting publication and you have to get the original one in order to get all of the compositions. It is called Henleys book of 20th century formulas, it covers everything that you would ever possibly imagine to do or make
I remember my old science alb kit and it had stuff in it you won't get at all now in a kit. the kits now are so anemic. I used to be an Estes rocketeer with a couple friends. D engine was the last engine I used. Never had igniters like that when I was in rockets. we got a nichrome wire with a little coating on ti and we had to bend it to shape and used a toothpick broken off to hold it in place. Half the time the igniters failed LOL used the D for the Big Bertha rocket. Yes Estes has some decent motors. Would love to get back into shooting rockets again. That is in the plans :)
The ignitor well does make a short progressive burn, but then it goes to end-burner. Core cavities erode over time, this is why the 'V' flame front turned into a flat one. Great data recorder!
EM, I'm probably about the same age at 44. Iirc, the remote ignitor switches took 4AA batteries. I also remember not having those little "butt plugs" to hold the ignitors in. We either crossed our fingers they wouldn't fall out or we were smart enough to remember to bring some tape.
Split the skin with a utility knife and peel off the "cap". Still built the same as in school. Just about burnt a hole through the living room floor once.
I have a great story about a runaway D size motor that I set off in my yard unrestrained. It totally ruined the neighbor’s day as he sat on his porch having a cigarette and coffee. I was just a kid but if he could have caught me he would have ended me.
Great video as always! On a completely random note but it may interest you: I just completed my Masters Aerospace Engineering Final Year Project entitled 'The Design and Instrumentation of a Rocket Motor Test Stand Developed for Learning and Teaching Purposes', but there's a few steps left before a live test and was wondering if you'd like to check it out and perhaps offer some assistance? When completed it will be able to measure an Estes motor's thrust, fuel mass loss during firing, and then its exhaust flame temperature in a couple of places. If not, then I completely understand - it's no worries.
You remind me so much of myself it's unreal lol You know for a fact, out loud, that something is a dumb idea but ya have a bit of a giggle and crack on with the job lol
We used to slit them with an x-acto knife and unwrap them to get the gunpowder. One kid in elementary school put one in a vice and tried to cut it open with a hacksaw. He came in to school the next day with his eyebrows burnt off.
If you're willing to pay prosumer prices, you should look into the chronos series cameras from kron tech. They're cheap enough to be the action cameras (go pros) of the high speed science world.
I have made black powder rocket motors a couple of times. I can tell you that they are not easy to get right. the 12 motors I have made all turned into fire crackers :(
Now you chopped one open lol... Could you chop a motor that is advertised as the shortest burn time ? I was expecting to see to a gap right up the centre, maybe the faster ones have it.
Thanks for watching! Please help keep the channel sponsor free by throwing a nickle in the hat at www.patreon.com/elementalmaker. Alternatively, saving this link as your amazon homepage can really help the channel out goo.gl/x1ehvA
Found an interesting little game you might like its called The powder toy and you can perform all kinds of scientific experiments by designing engines to just mixing elements etc.
The data I have on the D12-5 from Estes is a total impulse of 17 Ns so you could say it's righ on the money. What I do not understand is that the C6-5 should have a total burn time of 1.7 seconds and yours is much longer. My data also say 10Ns total impulse on the C6-5. If I'm not mistaken the delay charge should be the time after motor burnout and heard that 1 second +/- should be an acceptable tolerance, by Estes, of the delay charge . Why it is also important to me? I have a model with separating boosters and this data should really ruin a succesfull flight with the C6 propellant block as a booster.
I watched the video again in slow motion and it looks like you have a burn time of around 2 seconds on the C6-5... could be something wrong with your graph . Ow btw.. you are one of my favourite channels.
Ah I also have the same table as you have from Estes and that also says 20Ns on the D12... so 2 different data sheets here :( on the C6-5 the data is identical.
I'm disapointed you weren't calling it the D Rocket
Honestly, if you want good quality slow motion for "cheap" your baseline is probably the Cronos. That'll set you back at least $3k though.
I figure with over 100K, that Davis is willing to lend out an older model or something.
I would like to see you build a slow-mo camera yourself :P
Rough surface finish on that cross section cut. Needs a good flame polish.
Lmao I'll get right on that!
If it wasnt so rough it would caught fire. I can’t belive you have done that.
Can't complain about a hand full of C's, or double D's either way!
Yes a handful of c's and adouble d are essential for good health
Nice
I can't disagree, after all they're both vitamins... Coincidence? I think not.
C-cells are almost never used, and D-cells are on the way out.
@@RealDeanWinchester What? Dude you conversationed into the wrong boobs, or whatever we were talking about... Now I'm confused more than my baseline confusededness.
Edit: Turned a we we into a we were, by magic!
I gotta say, love the caveat to "Dumbest thing I've ever done *slight pause* In here"
When i go to hobby lobby my girlfriend says she always wants to look at things we dont have at home and what she needs, and she is always looking at the power tools even though we have lots of them, i cant figure it out :P
Power tools at hobby lobby?! Man I must have missed that section!
This was fun! I always wanted to build a test stand for these motors when I was a kid, but the rocketry phase of childhood gave way to the radio controlled airplane phase before it happened. By the way, not all of us have the attention span of a meth addled chipmunk, so please do include data and theory as you see fit. I don't think you will chase all your viewership away with a couple graphs and equations. Cheers! 👍👍👍
You need to combine the rockets with the RC planes, actually firing rockets from one is really satisfying.
@@chemistryofquestionablequa6252 Yeah, we did that too. Good fun, but very hard to hit anything! We also put bomb drop clips, fins, and little nose cones on 12 gauge shotgun shells. We would take out all the pellets, of course, and load the empty shell with all sorts of "energetic" stuff. It sounds like we would have been good friends! Cheers!
A treat especial!
Yeah but, Focus You Fack!
im always impressed with C's and D's but then you mention DD's and im hypnotized... wait what were you talking about . lol
Hey man just checking in on you, haven't seen a video in a while but I hope your doing well
Love the smell of black powder in the morning :-)
Cutting open highly flammable things? I'm in! Also, Hobby Lobby is great for cheap glassware...
Ohhh like chem glassware? I didn't see any of that there. Or you just mean using their everyday glass as substitute chem glass?
@@ElementalMaker Just as a cheap substitute. There's a lot of different shapes and volumes that are good for storing various things that need to be stored in glass containers. They also run a sale a few times a year where you get 50% all glassware there.
For someone with Double-D's, you sure have a deep voice (and a very pronounced Adam's Apple).
Love your videos! My father was a Rocket Engine Scientist, Minuteman & ICBMs in the 50s-early 1980s. Cold War Days... before that was the B-52 wings to fuselage connection. He had me Reloading solo at 9 then backpack to 13,000 peaks solo all 4 seasons with a day pack fishing pole and a Remington bolt action 22 LR. Live off the land. I was lucky to had a father as he! Mother? She was raised on a real Homestead in N. Saskatchewan.... she knew to! Hahahahaha thanks for your work!
If you are looking for something to do with the other engine half, you could clamp it to a sheet of Pyrex and ignite it and watch it burn. It would have some weird internal geometries, so it wouldn't quite be 1:1, but it would still be neat.
There's a video of exactly that here on youtube, can't remember who made it, but it shouldn't be too hard to find.
Brings back a lot of my childhood. I'd smash the tubes with a hammer and use the blackpowder in my little cannon
I like having the data in there. It was a good mix of burning rockets and the data. Good work!
Thank you Chris!
It's no Cronos, but Sony ZV1 can do 960fps @1080 for relatively cheap. And it's just a great vlog camera anyway.
ah yes... the good ol' days when you could get your 8 year old a chemistry set containing a big jug of Plutonium Tri-Cyanide, a large can of Lead paint, and an "experiment" that resulted in Anthrax spores that had pink eye and head lice. damn man... those were the days.
My favorite toast..... heres to gun power and “women”. One brings you in the world. The other one takes you out. And I LOVE the smell of both.
Was I the only one who got additional pucker factor when seeing the band saw push rod was metal? I was worried it'd spark when hitting blade, but wasn't sure about material...
What happene if you drill a core burning style on one of these black rocket engine???
I'd imagine a boom would be the result but I may have to test that
Having seen these things outright explode on the launchpad, I did not expect the thrust curve to look that nice.
if you have just one or two projects in mind, contact Destin at Smarter Every Day and set up a collab. he has the highspeed and the interest in this sort of project.
How is that new shop coming along? I miss the videos, I enjoy them very much.
For high speed cameras I only know about the Chronos 1.4, but then you probably already know that one.
Not exactly cheap either, but very capable at least.
Did we hang out together as teens? I did the same thing to rocket motors back in the day. I wont say what we did exactly but it was not malicious
Tech ingredients put out a video a month or so ago about a good for the money slow mo camera.
Hope you're alright man haven't posted in a minute.
you good? havent uploaded in 5months
Sony ZV-1 can do 960 frames per second.
"Thats how I got G.P. as a kid.."
As a 35 yo kid, wow, I thought it was something other then gp more like sugar kno3.
As a 35 yo kid dad to 3 sons. " Hey boys, let's go do some cool science"
I now stare in Berkland air reactor, thinking about the kno3 and sodium bisulphate pool ph stuff, but knowing I got a hotplate and some drain cleaner..
Oh. Quick update on a video I have not put out yet.(cause my bud who wanted to do the editing decided to disappear with the vid.. its ok, we all have them days) I have Silver Nitrate and am growing potassium Ferrocyanide crystals 🔮.
Like is good.
I'm old enough that when I was barely in my teens I could by black powder and fuse at the hardware store.
That was really superb … It’s always great to see some wonderful content ✨😊
The chronos high speed camera is stupid cheap for what it can do.
You still around? Miss you :(
Samsung phones 10+ and newer have 960fps with autotake.
Huh, I've never tried that, thanks for the tip!
60+ years experience in making rocket engines shows up as Estes consistency.
I would like to see how these thrust curves compare to a DIY engine of the same size.
Try reaching out to some slow motion camera companies, I know that's how a number of YT channels got theirs. nice sponsorship to have
Now that you tested them, shouldn't they be named T.Estes?
I like where your minds at. Come over for a beer any time
Hes back at it again
Sick video man, also cool to see the data all modeled out like that. Keep up the content
I live for this channel definitely one of my favorite
Thank you Mark!
Some This Old Tony cosplay going on in this vid
I miss ToT, hope he's doing okay.
Where did you go?
and all this time Ive been using my Arduino to flash LEDs... ;)
Come back plz
Its difficult to find a bad day for testing thrust. Nice job, sir.
So, a couple of questions:
1.) These were black powder (KNO3+C+S) .... how does this thrust curve compare to the equivalent grain of rocket candy (KNO3+C12H22O11)?
2.) In the grains you make with rocket candy, you have a complete tunnel through the center, whereas these just have a small notch at the bottom... What is the advantage in the full tunnel?
We used to launch HUNDREDS of Estes rockets and ones we just started making from stock cardboard tubing, fins and cones at the nearby golf course in the mid to late 70s. We had an awesome hobby shop in town back then and as for the custom-made rockets? 5 stages? Possible but it'll break apart every time before you get to 6 stages, unless you build something really wide, trust me on that. lol Btw, I found you from a shout-out on NightHawkInLight's channel. Fair to say, he's real grateful for all the help he got from you on the synthetic ruby experiments. Keep up the good work! *Liked&Subscribed
Lots of CATO's (Catastrophic failure at Take Off) can be traced to motors that have gotten damp (black powder LOVES moisture) and then dried.
Cracks in the fuel grain...more flame-fronts than the casing can deal with...BOOM.
I was getting ready for Certification with an I-class re-loadable [Dr. Rocket] motor when September 11th happened; all fuel became unavailable, all permits cancelled.
I regret choosing to not continue building rockets.
I like how agile and entertaining your channel is. I would like to see things in more detail, though. But, anyway, it is very interesting . Congratulations
Well for a slomo camera, the Kronos is a safe bet if you have 3 or 4 thousand canadian kopecks, and they're made right in canaderp ! If you got a bit less beef, the Sony RX10 II or the Sony DSC-RX100 IV might be worth looking into, just found out about them, can doo approx 1000fps max in full HD, still a grand though. Great vidja as always !
I think a smartphone is probably your best option for high speed video, probably a Samsung or Sony. If you don't need/want a phone upgrade, you can import one of the cheaper ones from China that doesn't have good US band support, like Xiaomi/Huawei/Honor/Realme. Though it seems like many of them interpolate video for the highest framerates, newer models might still be competitive given the price. Real hardware 480fps should be trivial to find, 960fps looks available on select models, and some models might even have actual 1920fps modes (though actual capabilities are hard to confirm).
The Fuji WS5000 has 450FPS and is about 300 bucks. IDK if you need more than that. The camera most YTers are using Crow-nos is the cheapest for real slow mo cameras for sure. Don't know how it's spelled.
I have continued to launch Estes rockets as an adult, but it's been a while. I've got several kits I need to build. Growing up, our shop teacher taught us to pack the igniter in with a pinch of ejection wadding, which worked great. The plastic plugs are a little different but work well. Lots of people had trouble had trouble with igniter reliability, but with care I've launched 2- and 3-engine clusters maybe a dozen times with only one half-ignition.
One thing I always wanted to try is a manually operated ejection using a radio for RC planes. Maybe even two stage for a high altitude rocket. But what I should really be doing is getting into high power rocketry.
Side note: the needle nose pliers on your bench look nearly identical to one I inherited from my great grandfather. Crescent brand, "Made U.S.A." (natch' 😉) and has "CRESTOLOY" on the back. I love it.
Hell yeah that is cool glad you got your fingers still from cutting them motors apart. Another thing I agree today's science kits don't have the goodies like my mid 70s skill craft chemistry set did. I think it's messed up how consumer safety politics get in the way of our fun hobbies. I think we need to defend our rights as adults to buy chemicals we need with out all the b.s. fireworks and rocketry always was my hobby and will till I kick the bucket 😆🚀🎇🎆💣😎👍👍great video thanks for sharing be safe
I actually keep this bookmarked... ENJOY :P www.rocketreviews.com/index.php?action=motors&tab=search&motorssearch=Estes I wonder if you drilled a hole through the middle of the charge and put the igniter all the way at the end.. would it increase the thrust?
You know what happened to dumb kids? They didn't make it! It's sad but suck starting your Ford f150 isn't recommended and your mattress body armor to stop a truck have frighteningly similar outcomes.
Lol...reloading press and propane torches in the background and cutting a rocket engine in the foreground. Party Time!!
You would be a interesting neighbor,as long as the destruction were limited to your property.🤣🤣🤣🤣🤣
If you want more than 240 fps... Samsung phones like the S10+ and newer do like ~900-1000 FPS.
I use a Samsung phone for slow mo with rockets. Ever since the galaxy s7 they support a "super slow mo" mode that records at 720p 960fps for up to half a second. It won't get the whole burn duration but for something you can get cheep on ebay, it's not bad.
One of the more affordable high speed cameras I know of is the Chronos high speed camera. Also I believe that some Samsung phones can actually record up 960fps I’ll be it at a low resolution but still adequate enough for some applications.
Did you find any pilfered ancient artifacts?! Oh, I guess the hobby lobby family wouldn’t make stolen artifacts for sale to us civilian cretins… ;-)
Maybe the Slo-Mo Guys might have a used one for sale....
Brother if you've worked your way up to double D's during the pandemic we need to have a chat about your diet. And watching the ignition brought me back to my (mis-spent) youth and these motors. I used to salvage the battery packs from polaroid film packs for my ignition box. If I recall they made 6v and they had a great shelf-life and were basically garbage so no problem in getting them after someone used up their pack of film.
@1:15 - Unrolling fireworks - When I was 12, we lived in Hawaii. At that time (1981), fireworks of ALL kinds were legal in the state. There was a store called "Holiday Mart" like K-Mart. During large holidays, the store removed the ENTIRE toy section of the store and replaced it with fireworks. I'm talking 10,000 count rolls of firecrackers on pallets. My dad was a HUGE kid and would spend lots of money on goods.
Fast forward - I would accumulate and unroll everything I could get my hands on for as long as it held my attention then I would light it on fire. I'm lucky I still have all my fingers. There were several HUGE mushroom clouds out on the lanai.
I used to rig Revell models with strings of crackers to simulate battle. It was the home of Pearl Harbor after all.
Elementalmaker is AvE after a coffee and a doob
Lol, i paused your video as soon as you showed the engines and went on to say what i used to do with them and a few tales. I restarted and you did it too! :D
Try chronos slow motion cameras cheaper than the phantoms. I remember back in day their was a company called experilab in South Africa where I grew up, they sold kits to hammer your own rocket engines together. Aluminium rod with brace and cardboard blanks had to make our own mixes would be a good starting point to mess with those ratios. Esties were quite expensive all the way down south for us then. Now in the UK it’s whole different ball game here.
I probably should have said the you might have been able to desensitised the rocket motor by soaking it in oil. Works with cordite... But Where's the fun in that, some exothermic bandsaw action sounds fun
A plasma cutter would give you a much smoother cross-section. Well... It would be fun for us to watch. Love the videos! 👍
I drilled from the nozzle halfway down so it core burns ! Quadruple the impulse !
About lost ya. Couldn't remember name. Elemental, even though it's a kick ass name
Hi, I'm an amateur who studies 'everclear propellent'. I want to know how to calculate the burning rate when the internal pressure of the chamber is 6 Mpa. Can you help me?
I suggest you contact David from Tesla500, speak with him about promoting his device and either get an older model, a demo model or some form of collaboration with him. I'm sure you know what his Chronos camera is capable of and you're getting up there in subscribers, man.
Love it. Keep making videos. Just found your channel and this is awesome
ahhh yes. I remember as a kid cutting open one of those round smoke bombs, and putting it on the end of a C engine with rubber cement.
Lighting it off and the instant horror of a rocket engine flying haphazardly into the neighbors yard then letting out a plume of blue smoke.
Thankfully the neighbor wasn't to mad about the dead grass where it burned up, but boy was that a lesson in aerodynamic stability.
I drilled out the propellant grain to turn it back into BP. With a power drill.
Never had one go off, but in retrospect that wasn't very smart on the part of 10 year old me.
There is an interesting publication and you have to get the original one in order to get all of the compositions. It is called Henleys book of 20th century formulas, it covers everything that you would ever possibly imagine to do or make
I remember my old science alb kit and it had stuff in it you won't get at all now in a kit. the kits now are so anemic. I used to be an Estes rocketeer with a couple friends. D engine was the last engine I used. Never had igniters like that when I was in rockets. we got a nichrome wire with a little coating on ti and we had to bend it to shape and used a toothpick broken off to hold it in place. Half the time the igniters failed LOL used the D for the Big Bertha rocket. Yes Estes has some decent motors. Would love to get back into shooting rockets again. That is in the plans :)
The ignitor well does make a short progressive burn, but then it goes to end-burner.
Core cavities erode over time, this is why the 'V' flame front turned into a flat one.
Great data recorder!
Of you need some advise for your handsaw fixing. I can recommend Mathias Wandel channel here on YT 😉
This very video should be used as an illustration of the differences between men and women! Women never do dumb, I mean "cool" shit like this! 😁
EM, I'm probably about the same age at 44. Iirc, the remote ignitor switches took 4AA batteries. I also remember not having those little "butt plugs" to hold the ignitors in. We either crossed our fingers they wouldn't fall out or we were smart enough to remember to bring some tape.
Love the comments on screen for 'great guess ...'
Nothing wrong with Cs and D's! Lol
Split the skin with a utility knife and peel off the "cap". Still built the same as in school. Just about burnt a hole through the living room floor once.
I have a great story about a runaway D size motor that I set off in my yard unrestrained. It totally ruined the neighbor’s day as he sat on his porch having a cigarette and coffee.
I was just a kid but if he could have caught me he would have ended me.
Great video as always! On a completely random note but it may interest you: I just completed my Masters Aerospace Engineering Final Year Project entitled 'The Design and Instrumentation of a Rocket Motor Test Stand Developed for Learning and Teaching Purposes', but there's a few steps left before a live test and was wondering if you'd like to check it out and perhaps offer some assistance? When completed it will be able to measure an Estes motor's thrust, fuel mass loss during firing, and then its exhaust flame temperature in a couple of places. If not, then I completely understand - it's no worries.
Awesome! You bet, email me elementcollector1001@gmail.com. Your probably well above me in this stuff, but I will offer whatever help I can.
Congrats on completing your Masters!
@@ElementalMaker Thank you! That's very kind of you, I'll send it through now.
Hey @@Epic2Dive , is your thesis available online so I can read? I’m a aerospace engineering student and your masters title interested to me!
What you say might get you shadow band but you’re reloading equipment will 🤐
You remind me so much of myself it's unreal lol
You know for a fact, out loud, that something is a dumb idea but ya have a bit of a giggle and crack on with the job lol
We used to slit them with an x-acto knife and unwrap them to get the gunpowder. One kid in elementary school put one in a vice and tried to cut it open with a hacksaw. He came in to school the next day with his eyebrows burnt off.
If you're willing to pay prosumer prices, you should look into the chronos series cameras from kron tech. They're cheap enough to be the action cameras (go pros) of the high speed science world.
I have made black powder rocket motors a couple of times. I can tell you that they are not easy to get right. the 12 motors I have made all turned into fire crackers :(
Way cool 😎. Good information is important to figure out if I can drop it in Mary's backyard 😀 👍.
I JUST KNOW THERE IS AVE/ELEMENTALMAKER SLASH FANFICS AND I'M HORRIFIED
I will be Unsubing all channels until the dislike button works. No dislike? No like!
Now you chopped one open lol... Could you chop a motor that is advertised as the shortest burn time ? I was expecting to see to a gap right up the centre, maybe the faster ones have it.
Nice cross section! Can you encase rocket engines like that in epoxy? For display purposes