Lego Train Vs Lego Propeller car + TUG OF WAR!
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- čas přidán 5. 02. 2022
- An intriguing battle between these models! Will the Lego Propeller car have enough thrust in this odd Lego Technic Tug of war against the Lego Train. 60052 & 60198
Due to the weather I couldn’t film my other project so I quickly did this last night for a bit of fun :) - Věda a technologie
trains can never win in a pull contest, here is why:
The entire design of trains is made to give them AS LITTLE FRICTION ON THE TRACKS AS POSSIBLE! It's in the design, that's why they use smooth metal wheels on smooth metal tracks, smooth metal wheels that spin on bearings!
Train tracks are very long, so the more friction with the track, the more fuel you would waste for the same distance, so trains have:
-low friction
-small wheels
-small contact area with the ground
meanwhile your propeller car can push against the air, and a ton of it too!
but it isnt surprising, train "power" is only there to accelerate them up to speed on the very slippery tracks as fast as is reasonable
Hey nice read cheers :)
@@GazRsExtremeBrickMachines wow thanks for the pin xD
some more things about trains then: they were designed to move a lot of mass, far, and cheaply, those are the 3 design goals of a train, all the other stuff, like the speed, was there precisely for reducing the cost
on water, cargo boats go very slowly, because they are floating on water, and displace water in front of them, as such the energy needed to keep them up to speed increases with the square of the speed, so for all cargo boats, going as slowly as possible is ideal, when you see fuel prices go up, the trade shipping companies will actually lower the speed of their entire fleet to consume less fuel for the same distance travelled
trains again are different, because they touch the ground yes, but they do it in a low friction way, on top of that, thanks to bearings and the wheels actually spinning at the same speed the ground is moving, the only "drag/friction" loss of trains to the ground is from the speed differential from the speed of the wheel to the speed the wheel is moving over the surface
of course, because of that very small ammount of friction, the wheels will allign their speed of rotation with their speed of travel, this way, the drag generated is not squared, only the difference between the rotation speed of the wheel and the travel speed is squared, but that value is very small, so the savings are huge
the rest of the friction loss comes from the bearing of the wheel axels inside the train, which of course are small and slippery, but of them minimize friction (less surface area, less friction with ball bearings and lubrication)
so trains, because of all these optimisations, can afford to travel fast, unlike cargo ships, but it doesnt stop there, because the faster an object goes, the bigger it's inertia gets (energy is speed squared times mass), and the more inertia, the less affected by change of movement it will be, which includes the losses that come from friction, so for trains it's actually GOOD to go fast
lastly the reason trains go on rail isn't for ease of driving, reliability, pathing or anything like that, the very reason rails exist is because it allows for a metal on metal contact, the only difference between a giant upscaled car and a train is that the train will run on a low friction track, on top of that, because of their huge inertia (good luck stopping a moving train), they consume rather very little fuel while running, AND don't need a huge power to weight ratio on their engine, all of those factors are the reason trains were made possible before trucks for long distance cargo haul, especially early on with very inefficient, large, heavy, big steam engines as the only option, the mathematics of trains mean you can run them on a heavy engine with low power to weight and low acceleration, meanwhile, trying to put a locomotive on big car wheels with big rubber tires, and trying to drive it around, would be hugely fuel ineficient and extremely costly
@@anonymous-rb2sr I think it's a lot more simple when you account the weight of the contraption itself creates traction. With enough trains you could overcome it, but at that point your power is considered excessive. Even if your wheels are sliding there is traction, you'll probably grind up those rails heh.
@@Dani_Valykrie trains usually run with as much mass and as few locomotives as they can get away while still accelerating fast enough to get up to speed pretty quickly, so while of course the more wheels and the more mass there is the more fricition, it's still extremely low, people really underestimate how slippery trains are, it's just hidden by the fact they are very heavy
so a human can't really move a train because you need to accelerate a lot of mass, but if you were very strong and managed to push a train even a little, you would notice it keeps going for a lot longer than you thought for something so big
@@anonymous-rb2sr I've seen a group of men that pull train cars around before
the problem with this battle is that the train is way too light, and its on slippery plastic, It would be more fair if the tain got multiple balanced wagons, so it could combat the traction of the plane cart.
Yeah it wasn’t really fair, these two are quite heavy compared to other trains but still like you say the track is too slippy :)
Build a train of near equal weight and wattage pretty please..?
That’s insane! I did not think that was going to move it, very nice!! I wonder what would happen if you put that on like a lego boat and put it in a pool or something and see how fast it went
Congrats on 70k!!!
Hey thanks Easton, had a few good weeks :)!
I’m not sure as it was so heavy! I really think you need to go down the buwizz route for doing that.
A big indoor paved area would be great fun testing how fast it could go. Slow acceleration but it gets moving!
I really like the solid white background.
Hey thank you for the feedback :)
wow! that's amazing pushing power from that propeller, and like one of the posts before mine, I love the tug of war videos most of all. Looks a very well engineered model, almost aeroplane like! Excellent work.. you're not many steps away from RC cars and planes here... be careful, power gets addictive! 👍🍺🇬🇧
Hey thanks Carl! I want to get into them so bad but with this CZcams thing at the moment I have to stick with this!
I always had a big thing for RC helicopters but now I’m old(er) I fear one going wrong lol. I’d also love an RC crawler and go crawling with like minded people like yourself! 🍺🍺😀
@@GazRsExtremeBrickMachines you could put rc cars and lego on uour channel or create a second one for them.
Look like the friction/traction of the train on smooth surfaced track made it worse while the rubber tires of the truck were better
That propeller car is the most amazing thing I have ever seen made with lego (and compatible electronics)
Oh wow thank you very much for that :)
I was surprised by the power of that propeller, it moved 3.8kg so easily. I knew the trains wouldn't beat it, but I had a feeling it wouldn't overcome the rubber tyres of the 4x4. You never cease to amaze me with your builds, good job buddy 👍
Cheers Lee yeah it was like a brick with all those batteries! Lol. I may try a drone fitted to a Lego car sometime this summer!
This thing is an absolute monster of a creation, but extremely impressive nonetheless
Haha hey there and thank you! A very quick build but I’ve always been intrigued by how much thrust you can make.
You can increase thrust by using BuWizz motors in-place of all those L-Motors. Doing this would also significantly increase efficiency and decrease friction with the use of far fewer gears.
Nice bro! Good out the box idea the only problem that is rlly apparent is that the wheels on the plane aren’t powered so they just spin. Great vid dude can’t wait for the next project 😎👍
Hey cheers Nick! It was a speedy build as this dam weather halted my other build lol. 😀
Next video idea: Make a car with as much lego motors as possible and see how much speed you can get out of it. I think the record is around 30 kph.
I really want to do this properly soon! The issue for me is getting somewhere to test it safely :)
More trains!
OK your vids are the coolest like your inventions are amazing
Hey thankyou so much Sydney, really appreciate it :)
Great! Thanks for your content! 😃👌
Hey thanks for the comment :)
Cool!! I love the tug of war with the train. It's so Fun!!
Hey there! Glad you liked it, I wish it was more competitive! I did see a video of some using lots of trains to pull a person!!!
Wow this is cool!
Hey hey thank you :)
That looks like it’s about to take off lol
Haha Chris should I test it out of the bedroom window? I’ll send you the bill 😂
@@GazRsExtremeBrickMachines Lol yes just pillows on the floor
Next video: cat crushed by ‘flying’ lego plane’
Nice terrifying but nice. Next projects outside huh to big for the house lol whatever it is I bet it's awesome cheers
Cheers Nathan! wish I had more room and a big tarmac area outside!!
Amazing!
Hey thank you :)
@@GazRsExtremeBrickMachines You're welcome :>
If you could measure the pulling force, send it over the internet, and reproduce it at the other end, you could have tele tugs of war.
Haha :)
your helicopter car is verry impressive ! But you can also add tire on the small whells to more adhesion
Hey thank you for that Sacha :)
So powerfull!
Nice!! I wonder where did you get the propellers that is used in this video?
Hey Mike cheers, I bought these off brick link, there’s quite a few on there :)
the current one is 45400.
cool!
Hey hey thank you :)
Maybe this concept could work on some sort of glider like how you can attach a small propeller+engine onto the back of a paper aeroplane?
I attempted to build gliders when I was young, was really fun! All about keeping the weight down and this powered up stuff weighs so much :)
Where did you buy those great propellers? xD
Hmm I wonder :) Thank you again I’ll be using these quite a bit!!
Cool
And again :)
All it needs is redbull :)
Lol Alessio! It might need quite a few 😂
That's amazing! just wondering, do you think you could build a Lego RC boat? I've done it before! I love how this propeller car goes so fast, maybe try adding a fin behind the propellers to steer it! Like a boat!
That would be interesting! This could be too heavy to turn but not sure.
I really want to build a boat from pure Technic, could be a good summer project :) it’s a bit cold here!
those poor technic hubs crying in current limiting
Yeah they don’t like 4 motors on one hub for too long! I didnt want to add even more hubs as it was so heavy lol
tip: please make same weight on "driven axels"
Given the limited RPM due to friction welding, you could add a second counter-rotating propeller on the same shaft, this would give double toe disc loading force for the same RPM.
Sorry I’ve only just seen this! And at 2am it’s hurting my head thinking so will try in the morning lol :)
GazRs Extreme Brick Machines, I just thought of a project you could do: the world’s fastest Lego RC boat. I’m not going to sit and type out a big thing on how you should do it because I already know you can come up with something amazing!
Hey there thanks I will definitely give this ago one day! There is another CZcams who has built a great one, I think it’s marxpek! :)
Oh yeah that one is pretty cool. Do you have any buwizz and/or a 3d printer?
I wish I did but I will invest one day, buwizz helps so much and the battery pack is lighter too.
You can make some pretty cool things those things, one day if I move on from ‘just’ Lego! : )
Propeller RPM 2800, like WWII fighters
Hey I was looking last night at this! Limited so the tips didn’t break the sound barrier apparently :)
@@GazRsExtremeBrickMachines Yea that was a problem in late war fighters :)
how many motors and hubs do you actually have? 🤣
Err quite a few lol. Thanks to you viewers I keep investing in more! I have 96 motors as I bought a few big sets second hand and also bought 20 more L motors the other day(a great deal on eBay) 😀
@@GazRsExtremeBrickMachines I would also like to have so many motors to make experiments ;)
imagine making a gyroscopic launcher for paper airplanes
Wow!😎😝
Thanks Neil :)
bruh the torque gearing and traction is why the crawler won if the trains had traction one would bee needed
Awesome.
I didn't think a propellor like that would have so much pulling power.
The trains aren't that strong though either.
Is the propellor made by lego?
Hey yes Donnacha I just got my nieces felt tips and made it colourful lol.
The trains struggle for grip but are quite weighty things
@@GazRsExtremeBrickMachines ☺
@@GazRsExtremeBrickMachinesHello Gazr I am thinking of starting a CZcams channel so if my name is changed but it is the same profile picture I am just letting you know it is me. I will upload my first video on sunday. ☺
Oh great Donnacha cheers and good luck! I’ll keep an eye out :)
@@GazRsExtremeBrickMachines Thanks
I made custom model B for 4x4 extreme off-road and it's stronger, maybe faster and better suspension and crawling system, I only need batteries lmao
Oh cool and lol. I just bought 6 1.5v lithium rechargeable batteries and they’ve really helped. More power for longer and lighter :)
@@GazRsExtremeBrickMachines Yeah I'm looking for good rechargable batteries too, i just need to find not fake ones
I’ve always used the energizer 2400 mah 1.2v for my models. Reliable and last long whilst holding good voltage!
They’re a little down on power compared to these 1.5v lithium I’ve just bought but they’re 4 times cheaper and I expect more reliable.
I bought the Kratax 1.5v btw. Unless you’re going for fast the 1.2v are good enough!
it'll never fly! it's too big! it's going downnnnnn! 😱😃
Lol I won’t be trying this out of the bedroom window😂
too many motor I like it
Haha thank you :)
You're welcome
Its justs needs a steering
Yeah! Bit of a one trick pony :)
А что,если на поезд поставить парус?
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Your content is excellent, but the solid white background is unappealing.
I agree with you on excellence, however I thought the background emphasises the models more - less distractions? Just a thought, not an argument 👍🍺🇬🇧.
The background shouldn't be appealing regardless. It keeps focus on the models and foreground
Hi thanks for that and appreciate the feedback! Until today I’ve only heard very positive stuff about it.
For me it makes things very clear, I hate messy backgrounds but we’re all different :)
You
You are going to burn all your motors with tug of war not to upset you i like your vids but tug of war spoils motors i wasted 4 on it due to burning
Hey there the powered up will cut out under stress which is the beauty of it :) You’re right with the old power functions train though, not the best idea.
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I love your content but that solid white background is horrible.
Hey thanks, some people absolutely love it and my subs per view ratio has shot up since I’ve used it?
It makes things so clear in my view but appreciate all feedback :)
I usually do stuff outside but with the weather…
What 😐❓you Ukraine я российский (I RUSSIAN🇷🇺🇷🇺❗)
Go 42099 Go!!!
Good old 42099 is a beast with switched gears :)