Testing 15 Lego Propellers

Testing 15 Lego Propellers - Lego Technic

Рет қаралды 904,088

Күн бұрын

Join me as I explore the exciting world of Lego propellers, testing classic and custom designs for performance and durability. Witness toy engineering at its finest as I push the boundaries and unveil the secrets behind these innovative creations in action.
00:00 Let's make some noise!
00:20 Propeller 2 Blade 9 Diameter
01:20 Propeller 2 Blade 9 Diameter x2
01:59 Propeller 7 Blade 6 Diameter
02:14 Propeller 3 Blade 3 Diameter
02:32 Propeller 3 Blade 5 Diameter
02:54 Propeller 3 Blade 9 Diameter
03:29 Propeller 3 Blade 9 Diameter x2
04:02 Propeller 3 Blade 9 Diameter x4
04:39 Model "Cross"
05:01 Propeller 3 Blade 13 Diameter
05:36 Model "Wheel"
06:23 Model "WW"
06:44 Model "Saw"
07:12 Propeller 1 Blade 14L with Two Pin Holes x3
07:52 Propeller 1 Blade 14L with Two Pin Holes x6
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Пікірлер: 146

@DrEngine Ай бұрын

I have been curious about how the size and shape of a propeller affect its efficiency for a long time. I tested some propellers that I found in my drawer. I hope you find my experiment interesting!

@SWellWellWell Ай бұрын

It was educational and fun! Thank you!👍👍👍

@Sonnell Ай бұрын

It was fun, but it felt like it lacked the basic understanding of aerodynamics. I suggest you try the same tests next using smoke, then you'll understand a lot of misconceptions about how these stuff works. Like why the ball did not move close to the propeller but was sped up at a distance, or why non wing like "propellers" did not work.

@hydroworldoutlook5447 Ай бұрын

@DrEngine It was very interesting! Thank you! 4:40 As a building tip, though, when building custom-made propellers using LEGO Technic panels like this, try not to build perpendicular to the axis of rotation like you did in this video, as the centrifugal force acts outwards on the propeller blades. What I mean by that is, try using pairs of either the 3L Technic universal joints (for controllable and variable-pitch propellers) or the 3L Technic angled axle connectors to mount the blades parallel to the axle or axis of rotation, and reinforce the blade connections on both the bottom and top halves of the propeller hub. 3L Perpendicular Pin and Axle connectors can be used to mount the blades onto the hub. I've found that this design is much more resistant to centrifugal force and can hence spin at much higher speeds (even ludicrous BuWizz or buggy motor speeds) without breaking apart. I will provide links to the parts I am talking about below. www.bricklink.com/v2/catalog/catalogitem.page?P=42003#T=S&O={%22iconly%22:0} www.bricklink.com/v2/catalog/catalogitem.page?P=32016#T=S&O={%22iconly%22:0} www.bricklink.com/v2/catalog/catalogitem.page?P=62520c01#T=S&O={%22iconly%22:0} Hopefully this helps! :)

@hydroworldoutlook5447 Ай бұрын

@@Sonnell The ball did not move closer to the propeller because thrust from the propeller was exerting a forward force on the ball until the force of gravity interrupted the ball's motion (on steeper inclines). And non-wing propellers can work as long as each blade is set an angle, they are just less efficient than propellers with more aerodynamic blade types. Moreover, the propeller failure at timestamp 4:40 resulted from a structural integrity issue directly related to the propeller's design, not its aerodynamic performance. Centrifugal force acted outwards on the blades and overcame the frictional forces that held those blades to the propeller hub.

@AaronTureRonAbrahamsson157 Ай бұрын

Very funny Videos! 😊

@Slownick Ай бұрын

You have been running some props in the wrong direction. Best test them in both directions

@stonehengeman Ай бұрын

Also different amounts of power in each run.

@jessicaclark4350 29 күн бұрын

go-go gagit pixel reducer 0:01

@josephbruceismay6832 14 сағат бұрын

OH NO THE PIXELS! WHERE THEY'RE GOING?! [screams in 8p]

@shizumeru_ Ай бұрын

The wind detector falling over was a task failed successfully

@elios7623 Ай бұрын

4:21 THAT COUNTS???? hahahha aah omg you got me good

@hybrid.roodragon1226 Ай бұрын

Lmfao

@panopticonoctopus560 Ай бұрын

Your design choice to put the 3 flags along the ramp really drew me in: Flag 1, Flag 2, Flag 3, The Box!!! Loved it ~ thank you 😊

@DrEngine Ай бұрын

Glad you like them!

@baitsforyou 20 күн бұрын

@shroomzzz Ай бұрын

+1 for the Hot Wheels track! Such a bummer to spend the time build up something like the 'wheel' only to find it completely ineffective. All AFOLs know this pain. Thank you!

@Simple_But_Expensive Ай бұрын

I see several ways this test can be improved. 1) The tilted track means that at the higher levels, the propeller is no longer blowing along the axis of travel. A better setup would be if the track was attached directly to the motor frame, and the entire assembly was tilted. 2) Not all of the tests were at the same distance from the axis of rotation. A better setup would be three tracks, one at the bottom edge of the propeller, one at the center, and one at the top. The bottom one would trap air against the track, while the top would not, allowing comparison. 3) There are no really useful metrics. For an apples to apples comparison, make the track(s) longer, tilt them at 30 or 45 degrees, and attach a scale to the tracks. The propeller pushes the balls up the track, but it is long enough that the ball(s) 7:43 eventually stalls before reaching the end of the track. Measure the distance to get a comparable metric.

@DrEngine Ай бұрын

Amazing tips, thank you!

@whatusernameis5295 Ай бұрын

also have the same amount of power behind each of the fans instead of changing it. that really messes it up when available power is changing (some of the earlier fans would have benefitted from more power but you didn't give them it then you gave later ones more power) unless you did keep the same number moters

@thenotoriouscow2063 Ай бұрын

You have to tilt the rotor as much as the slope to keep the force and it's vector constant

@Gearz-365 Ай бұрын

Another amazing feat of LEGO engineering!

@MrBenski81 8 күн бұрын

Many of the props you have running in reverse. Take note of the aerofoil. The rounded edge leads the way. NOT the sharp edge. Had you used a snail scroll blower, you'd have sent that ping pong ball vertical.

@catter7652 Ай бұрын

7:55 that "flop" made my day! 😂 so unexpected, yet so incredibly funny!!😂😂

@anadiacostadeoliveira4 Ай бұрын

Everybody do the flop

@user-zy2nu7gk6i Ай бұрын

greate video bro!👍👍

@DrEngine Ай бұрын

Thanks! 👍

@spleenjacobson203 Ай бұрын

It’d be cool to compare ducted designs! Or maybe even multi-stage setups with progressive RPM on the addition fan stages? Or additional vanes after the fan to create laminar flow, which would increase the distance the air travels?

@jcmagna1243 Ай бұрын

the effort put into these videos is amazing

@falkez1514 21 күн бұрын

bro had such a good first try that it took a redesign and 9 other tries to beat it lmao

@user-do4is1gi7m Ай бұрын

今学校で歯車使った学習してるからこのすごさがすごくわかる😊

@filgiupo4853 Ай бұрын

Absolutely loved this video since I always wanted to know which propeller worked best

@DrEngine Ай бұрын

Great to hear!

@user-no3vf9ry8u Ай бұрын

Thank you so much for the informative video! The video quality is incredibly high! I am impressed!!!

@DrEngine Ай бұрын

Glad you enjoyed it!

@orangebg3761 29 күн бұрын

Hey the flaps on the fan you maid is reversed that's why it didn't work@@DrEngine

@SirNobleIZH 13 күн бұрын

1:01 One must imagine Sisyphus happy

@universalvastplays Ай бұрын

Lego x HotWheels x White Ball, never expected such a collab!

@sulaimanabdullah952 6 күн бұрын

I found this video very interesting. Thanks You might want to try one (or more) of your propellers with a single motor and different gear ratios. There will be a 'sweet spot' where 'matching' the propeller to the motor is best. Just a thought

@DrEngine 6 күн бұрын

Thanks for the tips!

@user-fk2oi2yn2f Ай бұрын

Great video! However, like all your previous ones👍🔥

@DrEngine Ай бұрын

Glad you like them!

@SergeiKoshman86 Ай бұрын

For some runs with small propellers, especially where they do not hit ~70% of max RPM, it would be good to test to remove the last reductor stage, for more torque & less friction

@rubythereptile Ай бұрын

love your channel

@rohanatorgaming0903 Ай бұрын

I'm gonna use the Propeller 3 blade 13 diameter as my fan

@djhagrid300 Ай бұрын

More blades doesn't equal more wind. It's actually negatively affecting the amount of moved air by decreasing the efficiency of the vortex. Same reason boats or wind turbines usually only have 3 blades on a propeller. It's a fascinating science actually. I recommend looking it up.

@user-pz8zz1uw3l Ай бұрын

So, What makes more blades?

@theeggheochannel9758 Ай бұрын

4:37 cool

@bey321 Ай бұрын

Amazing ❤❤

@DrEngine Ай бұрын

Thank you! Cheers!

@Pinkiewithmint101 Ай бұрын

That one Propeller just ripped apart

@CatDaddyTuning Ай бұрын

There is a maximum power for the first half of the tests. A more effective prop takes more power so you end up with nothing but the 2 blade getting past 5 until the ducted fans.

@RCmies Ай бұрын

now make a flying plane built out of lego using this knowledge... It's probably impossible but with enough wing span and really light build, maybe the body just made out of cross axle rods and some fabric or vinyl for wings, and using a small non-lego motor with small battery it could be possible. Or maybe a rubber band plane? Would be cool Lego achievement nonetheless.

@user-xx4fn3vb3t Ай бұрын

Great propeller invention

@pm6_06universe Ай бұрын

6:10 bro just want to move near the ball 💀

@sop1918 Ай бұрын

There’s official Leto rotor pieces, many from Lego city helicopters, would be cool to see them

@user-of2fr1kh1r Ай бұрын

The lego one is like a sounds like helicopter propeller broking

@IstasPumaNevada Ай бұрын

I enjoyed this video, but I would also like if you performed the tests again with more scientific rigor, using some of the comment suggestions like testing all the blades flipped around too, aligning the fan direction with the incline, and testing different gearing for the fans to see which gearing works best for each one.

@arvidklangagerup7c319 Ай бұрын

The first level five edged me so bad bro

@ajmc6322 Ай бұрын

The wheel is pretty much just a large centrifugal fan which pulls air through the middle and flings it to the outside. You usually see them inside a cowling with one outlet for directing all that airflow to one area (usually inside someplace that needs cooling)

@DrEngine Ай бұрын

Thanks for the info!

@eno88 7 күн бұрын

6:42 turning OSHA into OSHI-

@danielhpcx Ай бұрын

Amazing video ❤ Part 2 with counter rotating blades

@DrEngine Ай бұрын

Noted!

@noamharduf Ай бұрын

i am a big fan of your woke kip it up😁

@gabrielpetre3569 Ай бұрын

Maybe try to make a cilinder around some of them to funnel the wind?

@DrEngine Ай бұрын

Nice suggestion!

@Morjensful Ай бұрын

The more complicated propellers cause more turbulence than airflow

@Domus_Maximus Ай бұрын

It's a bit of a flawed test, not only because the ball will just let the air flow around it and/or leave the air current as it ascends. Perhaps try propeller designs on a vehicle on rails, then you can measure both the weight and speed the designs can move?

@JjMn1000 Ай бұрын

I noticed(as some others have also stated) that some of the propellers seemed to have been spun backwards

@Roboseal2 Ай бұрын

I know this might be extremely hard to do but what if you tried Contra-rotating props? The Antonov an70 has them

@MikaelLevoniemi Ай бұрын

I think a small propeller might've done it too if it had a cowl around it.

@yeetboil9172 Ай бұрын

I like the idea but you really should’ve made a stronger structure for the big heavy propellers and held them down to use them most effectively

@victoriannordmann4333 Ай бұрын

Most ships used three blades, because the drag lower the rpm and use more fuel

@baitsforyou 20 күн бұрын

my fyp be like! he woill watch anything

@ctrlaltdel02 Ай бұрын

If RPM's drops from maximum and wind speed stays almost same going to different propeller, than it tels you, you have not enought power. First few tests is not valid due to motor not being powerfull enought to drive all attached propellers at 11k rpm's. At that point you are not testing propellers, but motor.

@SWellWellWell Ай бұрын

or shows the influence of the propeller on the engine ;)

@oldhorn420 Ай бұрын

He needs to use a brushless motor or put more motors

@woaminibricks Ай бұрын

The truth is that having many blades does not mean the wind will be strong

@aFrInaTiOn Ай бұрын

Nahw, you forgot to turn the white rotor blades by 90° - it will push much more are (and also creating much more resistance :D) Besides that little miss it isnice content, thanks ♥

@DrEngine Ай бұрын

Thanks for the tip!

@Casphea Ай бұрын

adding more blades increases the drag

@infinitelucidmaze Ай бұрын

You should have angled the fans with the ramp

@GeneralML Ай бұрын

Wouldn't it make sense to tilt the propellor in line to the desired direction of travel of the ball? You might have a propellor capable of lifting the ball vertically, but if you put the rail perpendicular, the ball won't move...

@patrickbarna4546 Ай бұрын

looks like size really does matter

@user-vb9zb9ui8g Ай бұрын

Cool

@AaronTureRonAbrahamsson157 Ай бұрын

Wow! You’re doing great work and I hope you are able to best! 😊

@DrEngine Ай бұрын

Thank you so much!

@evhentumanov4673 Ай бұрын

very cool

@kevtheoggamer6672 Ай бұрын

For some reason the white ones seem to work best

@kristianstaalby8499 Ай бұрын

Planetary gearbox/gearset when?

@ilovebricksz Ай бұрын

Nice!

@nerokashitaro1181 Ай бұрын

Have you tried combining solar panel with Lego?😎👍

@OrLann-Tesseract- 10 күн бұрын

Model wheel = Model washing machine

@LucasOliveira-dm8mb Ай бұрын

Algumas helices foram montadas ao contrario. Helice tem lado e isso influencia drasticamente no resultado. O lado da pá que é convexo deve ficar virado pra onde entra o ar na hélice, o lado concavo deve ficar virado pra onde o ar sai.

@The_Ambababush. 27 күн бұрын

go-go gadget pixel reducer

@SWellWellWell Ай бұрын

Increasing the number of blades does not always lead to better results... 🤔

@DecayedPage Ай бұрын

Wouldnt the Propeller 3 Blade 13 Diameter work better flipped around? Im just judging by the shape of the blades. Wouldnt it also be able to take in more air because of the curve?

@justanobody6344 Ай бұрын

Now build a plane that can fly

@Yarek653 Ай бұрын

can you do a drone next??

@matheusandrade1260 Ай бұрын

Why didn't you use counter-rotating propellers?

@godofmonochrome554 29 күн бұрын

nice

@minhkhangnguyen932 Ай бұрын

2:14 that use for water

@minhkhangnguyen932 Ай бұрын

7:56 bro make an whole tornado

@0_3113 Ай бұрын

4:20 - Screw it

@joaquindominguez3970 Ай бұрын

Nuevo suscriptor

@akhira_tan_aviations Ай бұрын

He will be hired by pratt & withney and lego

@willslifewithoutschool Ай бұрын

What camera are you using?

@SWellWellWell Ай бұрын

Is the Model "WW" model a "Water Wheel" ?

@beeswarm1bilion Ай бұрын

try to use a toroidal propeller it is way more efficient

@foxsquirrel3038 Ай бұрын

And now, we know. 😂

@countchompula1896 Ай бұрын

2 of those are boat propellers, not aircraft.

@zingxiu6123 Ай бұрын

I just saw this and wanted to comment

@muhammadashrafangkasa2158 53 минут бұрын

6:12 i think your spinning the "wheel" the wrong way

@ryanjulius9037 9 күн бұрын

How does that work?

@florianwalter704 Ай бұрын

8:19 Why don't the levels fit with the wind speeds?

@kiwishamoo6494 Ай бұрын

No measurement of thrust force as well as velocity

@tubestoneup2 Ай бұрын

Use a regular fan

@2222diy_craft_shorts Ай бұрын

Steell blade more effective

@MagnusNaron888 22 күн бұрын

1 : 12.6

@the-je6zn Ай бұрын

now test them on water

@DrEngine Ай бұрын

Nice suggestion! Thank you ☺️

@the-je6zn Ай бұрын

@@DrEngine your welcome

@joaogabrielgamer1461 25 күн бұрын

4:22 cheating

@user-ql5lo2cu5o Ай бұрын

omg😆😁😄

@williambohlman4598 17 күн бұрын

9 inch diameter. Def not

@asteroidrules 9 күн бұрын

I don't think it was diameter in inches, I think it was diameter in lego studs.

@gibrannajwanchanel1410 Ай бұрын

😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁

@RizhaFamily Ай бұрын

Hello respected content creator, I am very interested in the content you have created, and if you are willing, I would like to request permission to re-upload it on our platform. We are ready to share the revenue with you. Thank you.

@The_Ambababush. 27 күн бұрын

scammer.