RC Chinook Bicopter - Part 2
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- เผยแพร่เมื่อ 25 ม.ค. 2018
- Less of a build video this week and more of a control and stability lecture! Without spoiling the video, aircraft don't hover like pendulums!! This is the most common misconception that I see when I upload a video about any kind of aircraft that hover, from my VTOL tilt-rotor, to my SpaceX model. I wanted to make a separate video explaining this, but thought this would be the perfect opportunity to do so and also reach the widest audience. I hope my explanations make enough sense to prevent any more comments telling me to move the battery lower for better stability ;)
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As someone who I can’t remember once said:
“Airplanes are designed to fly, and therefore love to fly.
However, to make a helicopter fly, you essentially have to put a gun to its head and force it to fly”
Hahaha so true!
@@TomStantonEngineering and Ryan M - the aeronautics teacher used to compare the stability of helos vs fixed wing to the following Fixed Wins is like putting a ball inside a soup bowl, it will rock fm side to side untill it stops. A helo is putting the ball on top of another ball. When it starts going crazy, it keeps going crazy and faster untill the control is lost by the pilot. What a fun machine LOL
Helicopters don't fly, they just beat the air into submission.
Ryan M. I
Congratulations you made
Helicopters are horrible machines, constantly trying to pull themselves apart and held together with hopes and dreams.
This is LITERALLY the first time someone explained to me what actually causes the "rocket pendulum fallacy" until now I just knew that it existed and how it plays out in practice.
And yes, I was too lazy to either look it up or think it up myself.
can relate to that last part
Thank goodness someone actually understands that "pendulum" stability for air vehicles is BS. Thank you
I think that anyone who has studied any amount of aerospace learns about that fallacy. I learned about it in my first year. It makes sense when you think about it though.
I think the inspire raises the propellers mainly to put them outside of the camera's view.
As Michel said, the inspire raises the propellers to move them clear of the camera. Changing the height of the mass on a quadcopter just adjusts the point at which it pivots about, it doesn't make it more stable.
Lol 😂 clearly someone wasn’t paying attention. I’m very grateful to you for this video, it was explained perfectly. Well done sir 👍
Tom Stanton you say that but it flys better with the props above
Amazing explaination on this subject. I love the way that you take complex concepts and turn them into relatable videos like this one. Great work!
I've always loved RC build videos but when I came across your channel I thought I struck gold. By far you have the best videos in this category. You're very clear, interesting and funny. You have your own 'genre' if you want to call it. Your ideas are interesting and videos are very addictive haha. Have a good one!
Thanks man! That means a lot!
Can't agree more, i always watch your videos, like, 3 times *at least* ^^
Tom Stanton No probs! The best channel deserves it! 👌
As an professional engineer I find your explanations very well thought out and accurate. I enjoy watching your projects as you isolate and eliminate issues as they arise. It is refreshing and quite educational that you include the real-life failures that accompany all engineering efforts. Keep up the great videos! On a very minor point, the torque that you mentioned during your pendulum demonstration is referred to as a "moment" (That said, based on your obvious knowledge, I expect that you already know that and choose to use the more universally understood "torque" for the laymen who might be confused by the more technical "moment"). Anyway, great work!
To be honest, I never expected it would fly that well in this video. Great job!
I love the way you go about tackling a problem to solve it. The way you explain your reasoning is just beautiful.
This is the best explanation of the rocket pendulum fallacy I have ever heard. Thank you for making it so clear to understand.
I really enjoyed watching this. Unlike so much media that's served on the interwebs, I actually felt smarter at the end of the video.
I've heard so many people tell me that the reason their aircraft is stable is because it is heavy at the bottom. At a competition a while back someone literally put a weight at the bottom of their aircraft to make it more stable thinking that it would act like a pendulum. While the weight worked it was because the over sensitive gyros has less effect on the aircraft. I was so excited when you first mentioned the comments saying the the bi-copter would fly like a pendulum because I knew how good of an example the bi-copter is. The vectoring thrust makes explaining torque while flying much easier. I've been wanting a good small scale real life proof that aircraft don't level like a pendulum for a long time, and this video is perfect. Thanks for doing a great job explaining this!!
I really like the addition of the science of how this flies. I learn visually (which is one reason I love TH-cam so much), so explaining it the way you did was perfect, thanks Tom.
“A few of you were saying....” proceeds to teach and not insult intelligence and/or opinions
The scale helicopter community fails to recognize the flight controller as a tool....im not partial to "real flying" but when you have 1000 hours building and 3000 invested why risk it? This is an awesome demonstration of an unusual helicopter design using the tech with 100% SUCCESS. You're a badass my friend
The explanation of pendulum and not-pendulum stability applied to aircraft - or the "rocket pendulum fallacy" - (starting @6:40) is brilliantly clear. Well done! 👍
I really enjoyed the flight control and physics explanations. The annotations are clear and useful. I especially enjoyed the slow motion demonstration, the fence is an effective background. Bravo.
Wow, this presentation brings you up among the top science youtubers! Really well done.
You're good. I have no interest in model helicopters or rocket pendulum fallacy I don't even know how I got here, but I stayed for the whole video and found it very informative. Thank you!
Oh wow, science right there! Now I understand why the motors are pivoting sideways and what the inherent instabilities of a bicopter are. Your video is going beyond just model building - it actually explains the complicated science behind it. Well done! :-)
add fpv when you get the whole thing done! that would be really cool
Love you, and I know that I am not the only one who thinks that you deserve more subscriptions.
Nice animation of the arrows. You really bring across the underlying physics. Impressive.
Congrats on the successful flight! This is your best video yet.
Great explanations, thanks for walking us through your thought process , the pendulum counter argument was enlightening and well illustrated.
Awesome stuff!
Thanks for not only building crazy flying machines but also explaining what they do! I'd like to see more of those theory/physics explanations.
Finally part 2! Love your work, your uploads always make my day!
Another great one! I really like your theory section. You are a good communicator. Clear and simple explaination. I learned something new!
Every time you upload something it becomes my new favorite video
This puts a smile on my Face! Bravo!
Tom, I love the fact that you post not only the surprise success, but also your stumbling blocks. Keep up the great work.
I really like the explaination of the different forces acting on the Bicopter, this is really informative and was well explained! Learned something today, keeps up my interest in things like that. Thank you!
Also, he seems to put as much love into the projects and videos as Cody'sLab does, perfect. This is how Science should be promoted on TH-cam. (Instead of blowing up ominous powders you get as gift from your friend and hurting your apprentice with that...)
Dude, ive watched a few videos of yours here and there over the past but this one project has definitely twigged my curiosity!
Look forward to more of this, great job.
Brilliant CofG and pendulum difference explanation.
The slow motion demo was excellent .
Fantastic video Tom. I'm not a smart bloke but you explained it in a way that I could understand. An excellent teacher. Keep up the good work.
Been dreaming about building something like this for years and never got around it. Awesome to see someone actually doing it. Incredibile to see how easy it looked in my mind and how complicated actually the system is. Great work!
Maybe it's my background but the pendulum description was definitely far more illuminating for me than the slow-mo. Cheers mate!
Now i see that after a year or maybe more watching you i didnt remember to press subscribe..... You explain ewerything and anyone can understand what you doing. Best channel on yt about rc etc :)
Your explanation was excellent, I remember this is what they taught us when I was getting my helicopter licence
Thanks for the explanation Tom. Makes sense now.
Tom. You have the makings of a fine engineer.
Very informative. I would definitely like to see more like this. Keeps my brain oiled.
just about the best explanation of this I've seen. Very well done as always, thanks for making it!
Awesome work, as always, Tom! I learn so much with each of your videos. Keep 'em coming.
I actually learned a lot from this video. Always thought that the pendulum thing worked in aircraft but now I see whats going on clearly. Thanks for the great explanation and visual using your cool Chinook bi copter as a reference.
You did a damn good job explaining the science, I felt like I actually understood it all.
Dude I really like your videos. As a fresh maker-tuber I am impressed and excited by how far you've come.
Great job, Tom! Really enjoy your projects, explanations, and perspective. Well done!
Im glad to see this update! its really good to see you pull this off. super friggin neat, brother!
the new format is great, thanks. I've never heard of the rocket pendulum fallacy before! this is awesome
Thanks, Tom! Your explanation of the rocket pendulum fallacy and the slow-mo shots with the thrust diagrams were excellent!
Wow! That’s amazing! Great job! Doesn’t it feel so good to see your creation work!
This is amazing! So glad I've found your channel! I've wanted to build an rc Chinook but never known how to go about it. Will be following your project with great interest!
I'm really impressed, i subscribed since the electric bike and this is by far the most educational and detailed video you've done thank's keep on the great work
Awesome build mate and very informative, with more fc tuning you will have it flying like a dream. Thanks for sharing Tom !
Tom, you deserve your subscribers. Excellent stuff. A bit over my head but you are a genius!
That flies so well! Tom you produce some incredible work!
I find your vertical flight videos to be the most interesting of all.
You are brilliant, and your explanations are clear and instructive. Thank you for this video, keep the good work.
Thanks for the video. Love it when you learn something new and your explanation was very well done
Really good example and demonstration, cant wait to see how the build turns out.
Awesome work, especially as it flew perfectly on the 2nd try. A real breakthrough.
Best explanation of the rocket pendulum I’ve hears, nice one
Excellent video Tom. Making physics interesting and fun. Who knows how many inquisitive fuses you've lit in young people's minds, that might have them follow in your footsteps.
Sincere respect and thanks.
Paul
Greetings from Ireland!
This build is progressing nicely. Can't wait for good weather!
Was waiting for the flight test video... Flies much better than I thought it would. Well done.
This thing flies amazingly well!
Superb video. Can't wait to watch the next installment in the series!
6:38 is the best part of the whole video. Answered all my questions about the pendulum fallacy. Here comes the nerdgasm!
Tom, I absolutely love how you do education. Keep it up friend!
Only 2 years late watching this lol. Just wanted to commend you on a great explanation and editing... thank you 👌🏻
Loving the new more detailed vid format.
Terrific video and very clear explanations. Great work!
Tom You are ace and a great teacher
great tutorial tom. looking forward to part 3. 👍
This was far more stable that I thought it would be... Great video.
Very clear explanation of what you're doing! I like your channel, keep up the good work!
Awesome work, amazed at how well it flew
Awesome simple and logical build! You're a very knowledgeable character
Thanks for the great input of why something happens
Looking forward to your next video
Very cool, can't wait to see the finished product.
Really enjoy your videos and for you taking the time to explain everything in such detail. Thank you so much Tom and here's hoping you continue to share your great work.
*Dance the Skies*
So basically you are flying a homemade bicopter, initially with sketchy pids, in acro mode? Brains and bravery! Good job !! Can't wait to see the final product.
Awsome, informitave , and well produced ! Great job 🍪
The Chinook is a really great project-awesome demonstration of the rocket pendulum fallacy and principles of lift!
Awesome slow-mo explanation, really appreciate!
This was a really cool video. Definitely gonna watch the rest of this project!
mann I love seeing that while you explain the pendulum fallacy, stuff my teacher taught me years ago come back to associate with all of that, amazing work 💕
I have been waiting for this video!!! Great content Tom.
Great explanation. Keep up the good content. Liking the new weekly video schedule.
Awesome Project!! I would love to make such a thing. May be i will make one too. Keep it up.
great video tom, found this really interesting to watch as i am a electrical avionics engineer on chinooks as well as a fpv pilot myself. this looks like a great build and looking forward to part 3 , the temptation to find a old flight controller and some other spare parts is very tempting haha. keep up the good work.
Your videos are so interesting Tom. I don't understand it all but I learn a lot. You're a very clever chap. Thank you.
Nice explanation about the pendulum stability. Thanks.
Another great video. Thanks Tom
Amazing project!
It would be realy interesting to see how you program everything ^^
Awesome video! I’m very impressed with how it flies
Great video and the lesson was great! I learned a lot from your explanation and demonstration. Thanks!
Great job. Loving the explanations. Keep it up.
This is an amazing Super explanatory video, thank you so much. Love your videos.
Quality content yet again. Good job
Well done Tom, and thanks for a very interesting and informative video. Great second flight too!