David Windestal did the rocket knife some years back. It was (quite literally) a knife attached vertically to a rocket powered sled on a rail, with something at the other end to take the impact.
When I was a kid (about 65 years go) I bought a Jetex-powered helicopter. Jetex was a small solid fuel rocket motor, about 1 inch long. The helicopter had two rocket engines at the ends of the rotor, like your first design. I too encountered the problem of sometimes only one engine firing, which shook the copter violently. When it worked properly it flew quite well.
50 years ago Standard Fireworks used to make those out of a small strip of cardboard and a small rocket motor. Designed to be used in the standard (no pun intended) terraced house back garden. They amused a generation of fathers and terrified a generation of small children as the watching family would have no idea which way the highly dangerous toy would fly off. It would elevate to cry’s of ooh’s and aah’s and the occasional “look out” as it would hit buildings on its way up. If only we had RUclips when we were young….. and CAD printers may have been handy too!
The first thing I was thinking was actually "Yes you can, they make cheap fireworks that are literally cardboard, rocket-powered helicopters" but still, cool footage and cool project!
Yeahh!! That's my video 0:30 Very interesting project! I see the resemble of maple seeds falling. I love to watch them float, parachute, tumble, spin and glide to the ground as you explore the aerodynamics of seeds. Awesome project!
Thanks so much again for allowing me to use it, Arleth! Shame I couldn't find any seeds like this in my garden, but you saved the day! Glad you enjoyed my video. :)
6:00 POV you’re an archeologist 1,000 years in the future. Your plastic detector picks up something, so you dig down and find this thing buried in the middle of an old forest. Wth do you do lol
So I have some potential for improvement here.... possibly. It sounds like, purely from the sound, the helicopters are rather quickly reaching their maximum rotational speed and then staying there for a while. From my knowledge of rockets, the thrust they produce is basically a function of the exhaust gas speed vs the forward speed of the rocket, especially when you're in an atmosphere. So my thought here is that possibly the rockets, with the arm length and rotational speed, are reaching a linear speed that's basically equivalent to their max thrust minus however much for drag forces. So hypothetically you could get it to rotate even faster by putting the rocket closer to the center of mass of the unicopter. You could probably pull that off by having the arm extend past the rocket's position and act as a counterweight to the main wing, and possibly even improve the lift by making that counterweight a much smaller wing. The other alternative is that the linear speed issue is negligible compared to the sheer drag of the whole system, at which point I wonder if you could get better performance with a larger, slower, more efficient wing design. Or even a 2-stage system. 2-stage rocket unicopter would be amazing.
Suggestion: A rocket powered car. But not in the way you'd expect. A gear gets spun by rockets (like the mono-copter) and that connects to the actual wheels moving the car forward. It's an idea of the wacky type
Brilliant video .... thank you for making me smile and inspiring me to fun stuff with rockets... My wife just shakes her head and calls me names .... So I put that down to success...
When I was a kid my father gave us puddle jumpers. They were a airplane propeller glued to a stick in the middle of the hole. One swipe of your hands to spin it and up it went!!! Tons of fun for hours. Maybe you could somehow incorporate a stick of some sorts for stability. ❤️the channel
Did this when I was a kid in the 1970s. No 3D printer, all built by hand. I got the helicopter ideas from spinning fire works. Made all kinds of things using wood and sheet metal and rocket motors. History repeats itself.
As the propellant burns the center of gravity/rotation will change substantially. I wonder how much the RPM changes. Perhaps making it stretch out as the RPM increases can compensate for this?
Barely pitch the engine-mount angle, as opposed to now relying entirely on the engine solely to rotate and the blade's ability to lift: separately, the prop-blade, perhaps a single triangular wide-tip fan-vane would better balance the thrust into lift.
If you can lock it in place temporarily(fraction of a second) until you can light both motors, seems like a symmetrical 2 motor rotorcraft design could fly in a more balanced way, and go a long distance
I love how in the beginning his reasoning is “ I know it’s dangerous and potentially lethal, but hey.. views!” Fair enough my friend, you earned a new sub 👍
Long burn, multi stage rocket planes would be cool! Like, one high powered slow burn to take you up, then some longer burning, lower powered ones to keep you aloft when you need more speed/altitude! Keep up the good work dude!
You can't launch those with low thrust long burn motors like this. Those are for shorter burn higher thrust rocket motors. Otherwise it is more efficient to use the wings for lift in the climb. Plus, these have no secondary function like delay or ejection charges to activate things.
the dual motor version might have worked if you locked the prop until both motors fired up and then released the lock. a simple dowel or steel pin might do.
Possible idea: Use the expanding gasses of the rocket engine to drive a steam engine. The idea is quite interesting and the modern vs old fashioned tech contrast is also nice.
How bout a massive rocket powered water wheel? Have the thrust hit the wheel buckets instead of water. I could see that spinning fast enough to open a portal to the upside down.
The seed works so well because of the heavy weight ball that becomes the centre of rotation it helps stop the side to side pull of the mono blade so if you can replicate that a bit better on yours it might go straight up just an idea
I would like to see a retro rocket parachute. This was attempted during WW2 with little success, but more recently it was used on the Mars mission very successfully. This will be a challenge!
@@voornaam3191 this device provides a braking effect on a free-falling object using rockets to provide thrust. Imagine you dropped a pallet of goods from a transport plane at low(ish) altitude (stabilised by a small drogue chute) as it approaches the ground at high speed, altitude sensors detect this and trigger rockets which quickly slow the vertical motion allowing a soft landing. Experiments were done during WW2 by the British, but the available sensors in 1943 made it unreliable and the project was abandoned. With modern sensors and computer control, it should be a possible, but challenging project.
3D printers really are amazing. I have literally thousands of hours on my original ender three and I have yet to have a single mechanical failure that wasn't my fault.
Lockheed Martin did this about 15 years ago, there's was about the size of what you did. It was classified for a long time and then the project was scuttled. The engine was "grown' on a copper chip and I was a VERY small turbine engine. It had a camera on it that was able to compile a 3D scan of a battlefield, or even a building. They also figured out how to equip it with a small explosive charge that would have been lethal. It was able to be steered using control surfaces and the engine was able to vary it's output rapidly to change course, hover and fly. Really cool tech, I know the guy that designed it and I did some of the machining on it myself.
To fine point of rotation take inspiration from maple seedling pods. Mother nature already made a monocopter. Also the 'stick' or launch rod. Make it longer so copter can build up speed before takeoff.
the single blade design is cool because when the motor burns and it autorotates back it resembles those seeds of a maple tree that are very similar and autorotate down like that.
I'll tell you something mate first of all well done on all your projects because I absolutely love them..your amazing my friend keep doing what your doing..after all at least your motivated to the core...take care pal 👍
I wonder if you could get two motors to more reliably ignite if you used a hold-down clamp that released like 1/4 second after ignition. That way the first motor to start doesn't rip the starting equipment off the second motor before it ignites.
For electronic ignition wire from a vape does the trick perfectly. 2s/3s battery will light off but you would want more of a timer as 2 seconds lights it but 6 seconds burns it. For rotational mass issue you should look further at the angle of attack
Love the consept!! A segestion for a chalange is to make a fighte jet with working missils. just like whene you launched the space shuttle off the plane except a missile and on the wing
How about converting some old Jetex designs to the TSP rocket motors? And then, if that is to boring for you, you could try some multiengined designs. The 25" Skyleada Vulcan with 4 TSP motors (and maybe also converted to RC) would be so cool.
You can actually make these by taping a cardstock wing to a ground flower (the spinning firework) In places where aerial fireworks are legal they sell them premade
We had these as a kid in boxes of fireworks . All they were was a bit of cardboard with rocket motor stuck to one end , to launch them you would put them on a sloping bit of wood or as shed roof , light and hope for the best.
![Felix "Unfair" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/Oswujxm2Ag0/mqdefault.jpg)
![Noob To Max With DRAGON REWORK In Blox Fruits [FULL MOVIE]](http://i.ytimg.com/vi/LnBMOinoOvA/mqdefault.jpg)
If it doesn't look like it should fly, and it flies, I auromatically like it
Thanks Joel!
Hello Joel!
Is bee
auromatic?
@@lwolfer5170 thats aromatic
Helicopter? Right! More like rocket powered rotating knife
I love it !
Throw some tomatoes at it
Maybe I should try making one from an actual sword next 😉
@@Project-Air maybe a rocket powered boomerang too!
lol awesome
David Windestal did the rocket knife some years back. It was (quite literally) a knife attached vertically to a rocket powered sled on a rail, with something at the other end to take the impact.
That was really cool, if I just saw a picture of that I never would have thought it could fly. I want some of those motors now too!
Hey Kevin reply to this video im a big fan of you science stuff
Please reply i beg you:)
Yeah those motors are super cool man! Burn times of something like 10-18 seconds depending on the size. 😊😊
@@Project-Air but anyways that is so creative thumbs up to your work and i also liked the video
How about I reply instead to tell you how embarrassing your comment is?
Please don't reply to me, I am begging you
totally dude. 100% true dude
When I was a kid (about 65 years go) I bought a Jetex-powered helicopter.
Jetex was a small solid fuel rocket motor, about 1 inch long.
The helicopter had two rocket engines at the ends of the rotor, like your first design.
I too encountered the problem of sometimes only one engine firing, which shook the copter violently.
When it worked properly it flew quite well.
Ah the 60s. A great decade where children could get their hands on solid rocket motors
"No control whatsoever"... sounds like a plan.
You and @Integza are definitely spending too much time together🤣
lol dude pro comment
50 years ago Standard Fireworks used to make those out of a small strip of cardboard and a small rocket motor.
Designed to be used in the standard (no pun intended) terraced house back garden. They amused a generation of fathers and terrified a generation of small children as the watching family would have no idea which way the highly dangerous toy would fly off. It would elevate to cry’s of ooh’s and aah’s and the occasional “look out” as it would hit buildings on its way up.
If only we had RUclips when we were young….. and CAD printers may have been handy too!
2:52 There is something really satisfying about seeing it start to rotate with nothing but the fuse burning.
The first thing I was thinking was actually "Yes you can, they make cheap fireworks that are literally cardboard, rocket-powered helicopters" but still, cool footage and cool project!
This rocket-copter is sick! Could you do a rocket powered dragster in a future vid?
Nice idea!
I'd watch that lol
There have been so many of those done. It would be nice to see someone take it seriously and science it out. Good idea
agreed. totally right
Did this when I was 12 lol
Yeahh!! That's my video 0:30
Very interesting project! I see the resemble of maple seeds falling. I love to watch them float, parachute, tumble, spin and glide to the ground as you explore the aerodynamics of seeds. Awesome project!
Thanks so much again for allowing me to use it, Arleth! Shame I couldn't find any seeds like this in my garden, but you saved the day! Glad you enjoyed my video. :)
My pleasure 🍁🚁@@Project-Air
Die cast rocket car, fastest die cast car possible
6:00 POV you’re an archeologist 1,000 years in the future. Your plastic detector picks up something, so you dig down and find this thing buried in the middle of an old forest. Wth do you do lol
So I have some potential for improvement here.... possibly. It sounds like, purely from the sound, the helicopters are rather quickly reaching their maximum rotational speed and then staying there for a while. From my knowledge of rockets, the thrust they produce is basically a function of the exhaust gas speed vs the forward speed of the rocket, especially when you're in an atmosphere. So my thought here is that possibly the rockets, with the arm length and rotational speed, are reaching a linear speed that's basically equivalent to their max thrust minus however much for drag forces. So hypothetically you could get it to rotate even faster by putting the rocket closer to the center of mass of the unicopter. You could probably pull that off by having the arm extend past the rocket's position and act as a counterweight to the main wing, and possibly even improve the lift by making that counterweight a much smaller wing.
The other alternative is that the linear speed issue is negligible compared to the sheer drag of the whole system, at which point I wonder if you could get better performance with a larger, slower, more efficient wing design. Or even a 2-stage system. 2-stage rocket unicopter would be amazing.
That is pretty cool! I have an idea for the next video, maybe you can make an RC plane that is powered from that helicopter
Suggestion: A rocket powered car. But not in the way you'd expect. A gear gets spun by rockets (like the mono-copter) and that connects to the actual wheels moving the car forward. It's an idea of the wacky type
Like the turbo axle
I was thinking the exact same thing. It might be hard to do with just one motor though
pretty sure thats just a turbine engine
The spectator cows at 6:28 are the absolute best! 😃
Awesome video!
Monocopters! There have been some pretty insane large ones in the high power rocketry world over the years.
Rocket powered fly swatters. 😂 we need to see this. Lol
Rocket powered submarine.
Yes, you heard me.
Brilliant video .... thank you for making me smile and inspiring me to fun stuff with rockets... My wife just shakes her head and calls me names .... So I put that down to success...
I love these little projects! Nice design!
Thanks! Yes me too. They’re fun
@@Project-Air Maybe a little rocket powered boat next?
We have fireworks in America like this but they also explode. When I was a kid we called them buzz-bombs.
When I was a kid my father gave us puddle jumpers. They were a airplane propeller glued to a stick in the middle of the hole. One swipe of your hands to spin it and up it went!!! Tons of fun for hours.
Maybe you could somehow incorporate a stick of some sorts for stability. ❤️the channel
i believe they make fireworks like this with a side exit exhaust. Basically a modified ground bloom that takes off into the sky.
I thought of these, too! I never quite understood how they work, though. They don't have any obvious lifting surfaces. 🤔
@@unvergebeneid As far as I can tell, they are quite common in Germany. Afaik you can even get them year round.
Did this when I was a kid in the 1970s. No 3D printer, all built by hand. I got the helicopter ideas from spinning fire works. Made all kinds of things using wood and sheet metal and rocket motors. History repeats itself.
As the propellant burns the center of gravity/rotation will change substantially. I wonder how much the RPM changes. Perhaps making it stretch out as the RPM increases can compensate for this?
Two opposite rockets would solve that problem far easier. Just get these darn things burning BOTH. Reliable ignition, maybe?
@@voornaam3191 that defeats the purpose and benefits of a one engine one blade device
The civilatory project is alive. Men like you are important. Thx!
Love ur vids. They are really good and all of your creations are awesome. Keep up the excellent work.
Thanks!
Helicopter 🚁 = Butter knife 🔪 nice vlog 💖
The weight of the engine changes as the fuel burns. I think a multi-stage rocket plane with these motors would be fun to watch.
Your enthusiastic face makes me totally believe that having "no control whatsoever" is the most desirable feature on earth
Barely pitch the engine-mount angle, as opposed to now relying entirely on the engine solely to rotate and the blade's ability to lift: separately, the prop-blade, perhaps a single triangular wide-tip fan-vane would better balance the thrust into lift.
Outstanding shipmate. Press on. USS Kitty Hawk CV-63. Jan 1980 to July 1983.
If you can lock it in place temporarily(fraction of a second) until you can light both motors, seems like a symmetrical 2 motor rotorcraft design could fly in a more balanced way, and go a long distance
I love how in the beginning his reasoning is “ I know it’s dangerous and potentially lethal, but hey.. views!” Fair enough my friend, you earned a new sub 👍
i would love to see a rocket powered and steered plane
I'll deffo be doing more rocket planes in 2022!
Long burn, multi stage rocket planes would be cool! Like, one high powered slow burn to take you up, then some longer burning, lower powered ones to keep you aloft when you need more speed/altitude!
Keep up the good work dude!
I agree! I’d love to build some like that ☺️☺️
How about one of them folding rocket gliders that snap open at the highest point of their trajectory?
You can't launch those with low thrust long burn motors like this. Those are for shorter burn higher thrust rocket motors. Otherwise it is more efficient to use the wings for lift in the climb. Plus, these have no secondary function like delay or ejection charges to activate things.
the dual motor version might have worked if you locked the prop until both motors fired up and then released the lock. a simple dowel or steel pin might do.
This is a great idea. The current through the igniters could probably be monitored by a microcontroller for an automatic release.
Possible idea: Use the expanding gasses of the rocket engine to drive a steam engine. The idea is quite interesting and the modern vs old fashioned tech contrast is also nice.
How bout a massive rocket powered water wheel? Have the thrust hit the wheel buckets instead of water. I could see that spinning fast enough to open a portal to the upside down.
The seed works so well because of the heavy weight ball that becomes the centre of rotation it helps stop the side to side pull of the mono blade so if you can replicate that a bit better on yours it might go straight up just an idea
That's freakin cool! If these were scaled up, had a dome in the middle where a pilot would sit, it'll be very steampunk 😁
Is steampunk a slang term for retarded?
Just wanted to say thanks for all these awesome videos and to keep up the rocket propelled projects
couldn't agree more. totally accurate
There's now a downloadable project kit for this rocket helicopter! Check it out ---- store.projectair.co.uk/products/rocket-helicopter
Where did you get the rockets from?
Because I don’t see it in the description
@@polarcraft9095 I've added it now :)
Next time build a proper fpv plane with head tracking and a realistic cockpit
are you done with the submarine project?
I wanna see a rocket-powered craft that launches into the air like a rocket, but then safely lands using pop-out propellers to spin. Awesome video!
I had a model rocket as a kid that did exactly this. It was very cool until i broke the fold out rotors
I would like to see a retro rocket parachute. This was attempted during WW2 with little success, but more recently it was used on the Mars mission very successfully.
This will be a challenge!
Can you please describe what a "retro rocket parachute" IS? Please please please give more information, for it does not ring a Bell helicopter, here.
@@voornaam3191 this device provides a braking effect on a free-falling object using rockets to provide thrust. Imagine you dropped a pallet of goods from a transport plane at low(ish) altitude (stabilised by a small drogue chute) as it approaches the ground at high speed, altitude sensors detect this and trigger rockets which quickly slow the vertical motion allowing a soft landing. Experiments were done during WW2 by the British, but the available sensors in 1943 made it unreliable and the project was abandoned. With modern sensors and computer control, it should be a possible, but challenging project.
You have made a flying knife, this is mad
3D printers really are amazing. I have literally thousands of hours on my original ender three and I have yet to have a single mechanical failure that wasn't my fault.
This is awesome . Thanks for MORE ROCKETS
Rocket-powered baby. Definitely.
Nice Casio you have there
Thank you I love them
Wow u did very good job.it kinda like the monocopter and ...
I loved it!! Good job!!!😁
Ah it's great to see quality Goblin trap making. Well done good sir many adventures will fall to these flying lobotomy devices.
A suggestion, a rocket with folding blades that pop up when the rocket comes down, so that it can decent slowly like a gyro copter.
Estes 7272
Lockheed Martin did this about 15 years ago, there's was about the size of what you did. It was classified for a long time and then the project was scuttled. The engine was "grown' on a copper chip and I was a VERY small turbine engine. It had a camera on it that was able to compile a 3D scan of a battlefield, or even a building. They also figured out how to equip it with a small explosive charge that would have been lethal. It was able to be steered using control surfaces and the engine was able to vary it's output rapidly to change course, hover and fly.
Really cool tech, I know the guy that designed it and I did some of the machining on it myself.
Awesome. Yes build more new designs. Please
Thanks for bumbing that into my head while I was peacefully coming back home with groceries
Rocket powered Maple seed pod...Whoo hoo!
To fine point of rotation take inspiration from maple seedling pods. Mother nature already made a monocopter.
Also the 'stick' or launch rod. Make it longer so copter can build up speed before takeoff.
Will you make any new iterations for the rocket plane?
0:12 "I know what you're thinking." My head: 🎵HELICOPTER HELICOPTER!🎵
the single blade design is cool because when the motor burns and it autorotates back it resembles those seeds of a maple tree that are very similar and autorotate down like that.
Tip jets are amazing ❤️
I'll tell you something mate first of all well done on all your projects because I absolutely love them..your amazing my friend keep doing what your doing..after all at least your motivated to the core...take care pal 👍
You just reinvented a $3 firework that’s been around for ages…but you did it with style.
That moral support from Cow spectators was very motivating
I christen this the DECAPITRON!!!!
When you risk your life I respect your dedication.
I wonder if you could get two motors to more reliably ignite if you used a hold-down clamp that released like 1/4 second after ignition. That way the first motor to start doesn't rip the starting equipment off the second motor before it ignites.
For electronic ignition wire from a vape does the trick perfectly. 2s/3s battery will light off but you would want more of a timer as 2 seconds lights it but 6 seconds burns it. For rotational mass issue you should look further at the angle of attack
I always wanted to make an RC boomerang. This is a good start.
First video I’ve watched from you. Subscribed within ten seconds. Gunna watch all day long lol
Dude you totally HAVE to build a giant one!!! Like NOW!!!
Love the consept!! A segestion for a chalange is to make a fighte jet with working missils. just like whene you launched the space shuttle off the plane except a missile and on the wing
Bro....keep doing it. I see a Good future on You😎
Reminds me of the jumping jack spinner fireworks 😎🤙
this is a technical revolution !
Well done enjoyed this immensely
And I like how you are always innovating keep it up
the cows in the backround are just like "huh, whats that guy doing" 6:34
You should put the motor at an angle, because it's not entirely rotational since it's exiting behind where you mounted it
6:33 Those cows are totally immune to this crazy humans antics at this point haha
How about converting some old Jetex designs to the TSP rocket motors? And then, if that is to boring for you, you could try some multiengined designs. The 25" Skyleada Vulcan with 4 TSP motors (and maybe also converted to RC) would be so cool.
I loved that video James good job
You can actually make these by taping a cardstock wing to a ground flower (the spinning firework)
In places where aerial fireworks are legal they sell them premade
Interesting to see that even a lit fuse provides some measure of thrust - never expected that although it makes sense now
Would you be able to share the size plane prop and the stl file for the adapter your printed?
Now there’s a ballistic knife if ever I saw one ;-) GG!
You should have started with spinning fire crackers they nailed it! Good vid.
Just looks like a butter knife flying through the air, really amazing concept.
We had these as a kid in boxes of fireworks . All they were was a bit of cardboard with rocket motor stuck to one end , to launch them you would put them on a sloping bit of wood or as shed roof , light and hope for the best.
How did I miss this vid. This is epically awesome
Great work, those look fun
Nice to see one of your projects work! 😂😅😍
Time to fly a plane with this idea 💡
Cool murder wing! You should make a 'nos' boost for a 'racing drone' with your left over rockets see if it gives it a decent acceleration!
A monoblade is pure genius dude!
Make rocket that makes boom sound and colorful light show!! Great wid!
Super cool, Whomsley. How about dinner rockets that fire from the sub out of the water? If you feel like a challenge, anyway😄 Cheers mate.
i love planes so i found you. Now you are my favorite youtuber ;)
You did what I used to wonder about doing. Especially rocket motors along the sides of a plastic propeller.