This was a really fun project to make, with over 1200 pounds of thrust and accelerating you at over 4 times the force of gravity. It was terrifying to ride but it worked!
YOU ARE A MANIAC and on behalf of engineering students everywhere I salute you. I would love to see more details on the dynamics calculations and design influences of the track and car! I got a theoretical acceleration of 5.45 G with a perfect piston. If you increase the size of your accumulator, you can limit the pressure drop during the launch, and the international amusement standards allow you to go up to 6 Gs (eyes back plus 1 G eyes down) for up to 1 second, so there is room to grow! Stay safe.
Charles Wickham Thanks man! I got a similar theoretical max G too. I think that the piston friction and the non-infinite air chamber size decreased the max G to what I measured in practice, around 4.2-4.5. Honestly while I could go higher, it feels so overwhelming in its power already that I’d be hesitant to. I’d rather build another with a longer piston instead to see if I can get some higher top speeds!
@@WillFromLondon Good answer! Thought I'd throw in that tidbit for you but I agree. I got to ride Maxx Force while driving through chicago last month and though the max acceleration of the launch is high, I find I much prefer the sustained launches on cable coasters like stealth or magnetic ones. Getting more speed would be great since so much energy is lost in the impact of the launch. My hand calculation had a theoretical top speed of like 70 kph, so watching you build that 3 m spike had me a little worried. It looks like Will Pemble is going for a cable system using one motor, as opposed to gravity's many drive tires. Getting the stroke needed is really a challenge isn't it. Maybe you could stack or otherwise telescope pistons to re-use your current system and not having to worry about divergence from the piston axis
Charles Wickham An electric motor launch is interesting for sure, and I’m curious to see how he gets the acceleration. The nice thing about an air system is that you can use a low powered compressor to store energy over a few minutes, then release all that stored energy in less than a second to get an extremely powerful launch. With a motor spooling a cable I’m not sure if that same peak power can be achieved. That being said, I think it’s great that different approaches are being tried! And I can’t wait to see how his turns out. The other benefit is that you can have a longer launch as you said. With the steel rod I was using, I think I could go all the way to 5-6m long without getting too much bend, it is surprisingly rigid even at 3m - although I’d have to try it out to be sure.
That's incredible. The whole time I was questioning how it would actually hold up with full body weight but wow! Also this must be at least 10 world records lol
What? Why would he need a "license" for a homemade coaster? In the UK, we use ADIPS, the rest of the world would use TUV, but it's not necessary here as it is private. You only go for that if you open it up to the public.
@@random789654 I live in London... I am also a consultant in the theme park industry and have supplied rides to entertainment centres. I'm highly competent in my understanding of my industry and the town I live in. :)
4.2 G's ? Vertical or horizontal G's ? I don't know how a small layout like that can pull 4.2 vertical G's... If you reaches 4.2 horizontal G's, well that means your homemade launch is more powerful than Do-Dodonpa's launch. That's strange, considering that Do-Dodonpa has by far the most powerful launch in the world. I'm quite perplexed.
I want to do this with my family and luckily my dad knows a lot about air compression, LSM's and Hydraulics. We are planning on adding an incredibly tight turn right after it for g forces and then an air time hill and it's back
Great work!!! Definitely one of the coolest backyard roller coasters out there. I would love to see more videos about it ESPECIALLY if you plan on upgrading the launching system! Hint Hint...
So yes. This is in fact the fastest acceleration on any roller coaster. Here's the math: donpa: 180kmph in 1.6 seconds. That's 50m/s 50/1.6 = 31.25 m/s^2 31.25/9.8 = 3.19g This ride: x=3m , t=0.38s x=x(0)+v(0)t+(1/2)at^2 3=0+0+(1/2)a(0.38)^2 a=41.55m/s^2 =4.23g I counted the frames on the launch to verify the launch time. 22 frames at 60fps. 0.366 sec if the video is at 60fps. His number is higher so I'll use it.
That would’ve been sweet! The only thing holding me back was time and money. If I could have, I would have! Maybe in the future when I revisit the idea.
Source: the wiki. It shows the incorrect older value (3.3g) from the Google search page, but opening the page displays the correct newer value (4.25g) in the details card on the side of the page. The coaster was renovated a while back to add/remove features and increase the launch power.
It dosent shoot up a tower and come back down but congrats guys I have been waiting a long time to see a amutear launch sequence..I always imagined having a long runway with tower at the end of it and the launch would be powered by a wire manually hooked on to the train and at the very end would be a literal car with the wires attached to the wheel..when it was ready to launch someone would just step on the gas dragging the train down the track releasing it with such force it would shoot up the tower lol..I know it sounds far fetched but anything is possible and you guys proved it..with this first homemade launch coaster..there my favorite
Very Cool! I love your reaction! This looks like the most intense backyard coaster I've seen on CZcams. I would love to have a rollercoaster in my back yard. Well done!
This launch is nowhere near 4.2 G's. I don't know where he got the 0.38 seconds he shows in the video, but none of the launches he shows here comes close to that. By counting video frame I'm getting around 0.6 seconds, which would give an average acceleration of around 1.7 G's.
Good job for making a coaster that have the same launch forcé of do-dodonpa just a Little more psi and you have now the world record for the fastest launch acceleration in a roller coaster
I am so impressed with is!!!! Great work! I would be interested in trying to build something like this. How long does it take to fill it up with air prior to launch?
Well. You built the first air powered launch coaster in the UK
Also first ever backyard coaster with a launch system in the world
@@statiic. i've seen another one that used really really thick rubber bands to launch the train
@@statiic. ur worng
@@statiic. jacky boy
no, what about Stealth???
"Coming to a Six Flags near you"
It'd be too expensive for Six Flags xD
@@benxyb2791 not if they purchase this exact layout.
@@SirMaverick34 xD
Only if your not in dubai
Joshua V. This has way more theming than an average six flags level coaster
Really unfortunate you stopped posting. Hope all is well regardless. Thanks for the videos
This backyard coaster just casually took the world record for launch acceleration from dododonpa.
Really?!?
@@marcussmith5806 no
@@diecirl6637 I'm pretty sure it does. Dododonpa has an acceleration of about 3.3g while this backyard coaster has an acceleration of 4.2g.
@@stephenlee1664 Do-Dodonpa has 4.25, a miniscule difference but its there
@@diecirl6637 Really? I heard 3.7 gs for dododonpa.
This is one of the coolest backyard roller coasters I’ve seen! Good job
Stop lying 😂
@@rvkit2873 this is sick bro
Incredible... same or greater g-force an Intamin hydraulic launch!
more speed than king da ka
@@loading2477 not THAT fast, no hate.
@@Pr35t0nYT it's not that fast but it does pull more gs.
it’s way more g force. way less speed.
OUT! STANDING!
Soooo this is why Will is making a launch coaster!
Out standing where? Better bring 'em in before it starts raining.
This man made a backyard launch coaster which goes 17.547 mph in 0.38 seconds.
Insane!
Your channel will blow up soon! Great content :)
So will that launch
YOU ARE A MANIAC and on behalf of engineering students everywhere I salute you. I would love to see more details on the dynamics calculations and design influences of the track and car! I got a theoretical acceleration of 5.45 G with a perfect piston. If you increase the size of your accumulator, you can limit the pressure drop during the launch, and the international amusement standards allow you to go up to 6 Gs (eyes back plus 1 G eyes down) for up to 1 second, so there is room to grow! Stay safe.
Charles Wickham Thanks man! I got a similar theoretical max G too. I think that the piston friction and the non-infinite air chamber size decreased the max G to what I measured in practice, around 4.2-4.5. Honestly while I could go higher, it feels so overwhelming in its power already that I’d be hesitant to. I’d rather build another with a longer piston instead to see if I can get some higher top speeds!
@@WillFromLondon Good answer! Thought I'd throw in that tidbit for you but I agree. I got to ride Maxx Force while driving through chicago last month and though the max acceleration of the launch is high, I find I much prefer the sustained launches on cable coasters like stealth or magnetic ones. Getting more speed would be great since so much energy is lost in the impact of the launch. My hand calculation had a theoretical top speed of like 70 kph, so watching you build that 3 m spike had me a little worried.
It looks like Will Pemble is going for a cable system using one motor, as opposed to gravity's many drive tires. Getting the stroke needed is really a challenge isn't it. Maybe you could stack or otherwise telescope pistons to re-use your current system and not having to worry about divergence from the piston axis
Charles Wickham An electric motor launch is interesting for sure, and I’m curious to see how he gets the acceleration. The nice thing about an air system is that you can use a low powered compressor to store energy over a few minutes, then release all that stored energy in less than a second to get an extremely powerful launch. With a motor spooling a cable I’m not sure if that same peak power can be achieved. That being said, I think it’s great that different approaches are being tried! And I can’t wait to see how his turns out. The other benefit is that you can have a longer launch as you said. With the steel rod I was using, I think I could go all the way to 5-6m long without getting too much bend, it is surprisingly rigid even at 3m - although I’d have to try it out to be sure.
What components did you use to manufacture that pneumatic shaft
This is the best backyard coaster I’ve ever seen. I like it better than the blue flash. It looks fun!
Seriously This is very impressive!i Would personally pay money to see more man.
Arms down!
Keep head back, arms down, and hold on!
Now get ready! Here we go!
ARMS DOWN
ARMS DOWM
ARMS DOWN
1:26 looks like the Stealth and the Rita advert! You should make an ad for your ride to promote your channel
Good catch! Those adverts inspired me a lot when it came to shooting this video.
How intense is the launch?
British Thrillseeker It felt much more intense than Stealth but a lot shorter so was easier to take overall. If you get what I mean!
What is the ride called?
@@WillFromLondon More intense than Stealth? OOF. What does Stealth's launch actually feel like?
That's incredible. The whole time I was questioning how it would actually hold up with full body weight but wow! Also this must be at least 10 world records lol
You've got a license for that there rolla coaster?
Probably
What? Why would he need a "license" for a homemade coaster? In the UK, we use ADIPS, the rest of the world would use TUV, but it's not necessary here as it is private. You only go for that if you open it up to the public.
Erol Huseyin It’s quite obviously a joke.
@@erolhuseyin6460 It's London, you need a license for a T.V. there.
@@random789654 I live in London... I am also a consultant in the theme park industry and have supplied rides to entertainment centres. I'm highly competent in my understanding of my industry and the town I live in. :)
Your stuff just keeps on getting better!
greetings. well ... it worked. No broken bones. a complete success. congratulations.
4.2 G's ?
Vertical or horizontal G's ? I don't know how a small layout like that can pull 4.2 vertical G's...
If you reaches 4.2 horizontal G's, well that means your homemade launch is more powerful than Do-Dodonpa's launch. That's strange, considering that Do-Dodonpa has by far the most powerful launch in the world.
I'm quite perplexed.
Coaster Crafter 4.2 horizontal. Yep, it’s pretty powerful! 1200lbs of thrust is no joke.
Wish there was more footage, I love the sound the launch makes
Great job! Now just make an inverted coaster :)
i think it would be very difficult
@Elvin *You think?*
@@NaenaeGaming yeah
Too expensive
Step 1: open a CZcams channel
Step 2: Be famous
Step 3: Give lot expectations to people
Step 4: Vanish like a pro
I want to do this with my family and luckily my dad knows a lot about air compression, LSM's and Hydraulics. We are planning on adding an incredibly tight turn right after it for g forces and then an air time hill and it's back
very very impressive and you even did you physics which made my day
What could go wrong?
Little Shmuplet Exactly what I was thinking
This is ace! I need to build one of these for my kids! The piston thing is what would give me a lot of headaches.
Damn! That launch has gotta be intense. Great work. Try and increase the psi for an even more intense acceleration or maybe the weight of the car
Nice. It's cool to see an air launch in action with the launch mechanism exposed.
Start makin vids again :c
1:37 is the mood swing when you go from “elaborate suicide machine” to “GOAT of backyard coasters”
This is so cool, it’s so simple how the launch works and it’s so awesome how fast you came up with the idea and built it.
Very bright boy. I can only imagine the things he will engineer in his lifetime.
This is so professionally done. Nice one.
Try higher PSI so it can go back to where it started
Only issue is it already pulls 4.2gs, so it can't go much higher while still being tolerable by a human.
@@translucenc3lol482 5 G will be fine.
@@translucenc3lol482 humans can tolerate up to 9g
@@bmfanboy8838 coaster bot
@@matthewsouthwell9653 *Tolerate.* 9g would be horrifyingly painful.
Wow. what a great achievement. That Rollercoaster looks so much fun. I would love to ride it.
Why is there no videos lately?
Great work!!! Definitely one of the coolest backyard roller coasters out there. I would love to see more videos about it ESPECIALLY if you plan on upgrading the launching system! Hint Hint...
Love that slo mo close up of the launch
Will pls come back
I don’t care about my vulgarity when I say: this is fucking awesome! Way to inspire creativity! Two thumbs way up!! 👍👍
So yes. This is in fact the fastest acceleration on any roller coaster. Here's the math:
donpa: 180kmph in 1.6 seconds. That's 50m/s
50/1.6 = 31.25 m/s^2
31.25/9.8 = 3.19g
This ride:
x=3m , t=0.38s
x=x(0)+v(0)t+(1/2)at^2
3=0+0+(1/2)a(0.38)^2
a=41.55m/s^2
=4.23g
I counted the frames on the launch to verify the launch time. 22 frames at 60fps. 0.366 sec if the video is at 60fps. His number is higher so I'll use it.
The video is 25 fps.
i would love to see you give it more power and extend that track up onto the roof then turn around and have a drop to it! that would be sick.
That would’ve been sweet! The only thing holding me back was time and money. If I could have, I would have! Maybe in the future when I revisit the idea.
@@WillFromLondon that would be fun
@@WillFromLondon Will you keep the rollercoaster? So that you can extend it later on
Did someone realize Dodompa's exceleration is 3.3g?
Coaster Lover24 actually 4.25
TotallyGeorge some comment I saw
Source: the wiki. It shows the incorrect older value (3.3g) from the Google search page, but opening the page displays the correct newer value (4.25g) in the details card on the side of the page. The coaster was renovated a while back to add/remove features and increase the launch power.
NO WAY, Yesterday i searched for ur channel and was like still no video :(( and now
Can you go into depth on how the controls work and how you made the air piston
Wow! Looks quite scary😅😂🤘🏼
Is it just me or is he very good looking!? 😍
It dosent shoot up a tower and come back down but congrats guys I have been waiting a long time to see a amutear launch sequence..I always imagined having a long runway with tower at the end of it and the launch would be powered by a wire manually hooked on to the train and at the very end would be a literal car with the wires attached to the wheel..when it was ready to launch someone would just step on the gas dragging the train down the track releasing it with such force it would shoot up the tower lol..I know it sounds far fetched but anything is possible and you guys proved it..with this first homemade launch coaster..there my favorite
Me : Mom can we ride Top Thrill Dragster?
Mom : We have Top Thrill Dragster at home
Top Thrill Dragster at home :
Backyard Air Powered Coaster 1 looks too intense for me!
So this is what clay aiken has been up to since American idol
Very Cool! I love your reaction! This looks like the most intense backyard coaster I've seen on CZcams. I would love to have a rollercoaster in my back yard. Well done!
Bloody hell mate, thats better than a bucket of bangers
The Top Thrill Dragster of backyard coastera
Overhyped and breaks down a lot? 😁
@Will From London haha you get what I mean
This is technically the worlds fastest acceleration on any coaster
Lightning rod: Exists
Will form London: Hold my crisps
Lol! Imagine creating a launch coaster that shoots 0-5mph in 0.1 seconds.
COOOOOOOME BAAAAAAACK
Great, now lets see the outtakes.
Beyond great content; excellent editing and such. Good job! Very entertaining.
This launch is nowhere near 4.2 G's. I don't know where he got the 0.38 seconds he shows in the video, but none of the launches he shows here comes close to that. By counting video frame I'm getting around 0.6 seconds, which would give an average acceleration of around 1.7 G's.
The second launched wooden coaster. Impressive
This is no Kingda Ka, but wow, well done!
I subscribed because THIS IS THE COOLEST BACKYARD COASTER I NEVER SEEN I MY LIFE
Good job for making a coaster that have the same launch forcé of do-dodonpa just a Little more psi and you have now the world record for the fastest launch acceleration in a roller coaster
Now build an intamin strata in your back yard lol
S&S look out you got some competition.
couldn't you have made it just a little faster so it beats do-dodonpa's record for fastest acceleration
i think it beats it as dodonpa reaches 3 gs
That's some impressive work. Awesome. 😀
Put two cylinders there for doubled acceleration
Honestly I don't think my spine would take it aha
@@WillFromLondon I think I should build such a coaster as a school project...that would be fun
You know that you have the worlds fastest accelerating roller coaster
Bloody brilliant!
Underrated youtuber
Came from will pemble great job man
The change of the facial expression from the powerful launch at 1:25
Awesome project!
Dododonpa's launch is nothing compared to this.
Only for 3 metres though! Maybe I should build a bigger one
@@WillFromLondon YES PLEASE DO! Make one that goes up to 120 psi
Wow no shit
Will From London please do, that would be amazing,
Dododonpas Launch has 4.25 gs
Can you make a video on how you made the car for it?
Better than lightning rod
Genius
that looks so good!
Nice build.
Now we need a steep drop. And your in the club
No test dummies. Just sending it the first time. 👏👏👏
Very nice :)
where new video
more intense than a mack launch
To cool! Well done!
mate i really hope you've been away for 7 months to build this so that it can support the 120psi
That is awesome! Now to make it longer hehe...
It says that the launch length was 3 minutes but it was only a couple of seconds
Sucka Maballs 3 metres not 3 minutes!
Ruber band launcher
Cool! Wold be nice if it would make it back over that hill
Why did he stop making videos
Yeah
I don’t care how much money it is I’m buying it
I am so impressed with is!!!! Great work! I would be interested in trying to build something like this. How long does it take to fill it up with air prior to launch?
This is so great :0
Very cool!
Sick ride, 🍻 cheers
Can you build an functional Loop transformer for energy?