How I OPTIMISED the 5" FPV Motor with SCIENCE: AOS Supernova 2207

If you value the work I do: patreon.com/chris_rosser
JB Interview: • The most powerful, mos...
Where to buy: AOS Supernova 2207
Global: www.aliexpress.com/item/10050...
USA: www.defiancerc.com/collection...
UK: www.hobbyrc.co.uk/aos-superno...
EU: droneit.se/product/aos-supern...
Timestamps:
0:00 Intro
0:31 The Design Process
3:05 Bench Review
5:40 NOT a 2207? SCANDALOUS!
6:33 Thrust Test Data
6:41 Measured KV
7:02 Motor Performance
7:35 Max Thrust
8:22 Efficiency
9:17 Max Torque
10:14 Responsiveness
11:21 Weight
11:46 Conclusions

[@JonE5FPV]

Interesting progress. After testing maybe 100 motors over the years of all sizes in the field, and in competition, started to come to conclusion that for a modern pilot with modern gear (post 2020ish) it almost doesnt matter. None of us can take full advantage of the speed/power on a track other than maybe a dozen people at the top. Still welcome progress if it helps move us all forward.

[@elmohawk2391]

Best comment! Thank you!

[@_burd]

It is good to be able to technically land on the 'solution' to the source of so much variance in motors available though, at least so the industry can then focus in on what actually are good configs using actual result data and move on to innovating elsewhere.

[@user_z01]

I agree @JonE5FPV in fact I think a majority of fpv pilots out there would fly better if they had less power in their builds. The top % can take advantage of almost all advantages, but everybody else - nah.

[@jollyrogergaming9842]

Same with motorcycles lol...

[@robertsmith2956]

@@jollyrogergaming9842 yep, honda put a throttle sensor on the bike, and discovered the rider only used full throttle for about 2 seconds. so downsized the engine, and weight, and made a bike that went faster since it ran full throttle much more often.

[@sandersassen]

Well done Chris, good to see there's still some room left for improvement on brushless motors despite their design having seen many revisions over the past 20 years.

[@pappuinfo6721]

Great job, true gem, lucky to have you in this field unlike others who uses only predictions to demonstrate the results of certain motors and props on how well they performs in real life. Against all odds keeping going forward with your honesty and hard work as it pays itself in time, better than you expect. Doesn't need anything more than you have, will attract new people coming to this field to your work. Always love from us.

[@leonardocastaneda904]

Please extend the range of motors in this series! Imagine a "Hypernova - sometimes called a collapsar" motor, made for 7-8" drones like long range or cinelifters! Man, that would be sick! Or a "NOVA: A white dwarf star" motor for 3" or sub250gr drones! Man I´m exited!

[@onemanmob6756]

I would love to see a whole line-up of motors utilising the principles of the Supernova. A 15 or 1404 around 3600kV for 3.5" 4s, 1204, 7500kV for 3" 2s and 5000kV for 3s and 2006 2900kV for 4", 4s and a 6s equivalent as well.

[@ChrisRosser]

I'll do my best! 😁 I want to do a 2808 and 1404 class motor as well

[@Kiromos]

Something for the rc plane hobby would be amazing. 2212 size or even bigger like a 2820 or 3820 would be a huge gift to the modeling world.

[@Blethrow]

​@ChrisRosser if you're taking requests, a 2808 1k would meet my 7" 8S LR needs 😊

[@onemanmob6756]

@@ChrisRosser great! I guess the best showcase for a new product is to stack it up against some tough competition - both 2207 and 1404 (don't know much about larger quads/motors, so no comment/opinion about the 2808) have pretty tough line-ups! Regarding what you said in the interview with JB about optimising your 2206 for maximum performance while maintaining the weight - asking ppl what they want is not always the best way, ppl often don't know what is they really need - the less experience the more likely they will ask for more power (look at cars), but with more power they will struggle to both tune and fly - this is why the 'smooth' motors have had their following. I personally think optimising for minimising the weight, while keeping 'average' performance would be a more interesting direction - the power you are used to, but reduced weight and faster response - this is IMHO what freestyle needs, optimising for performance has more merit at racing.

[@yuranium]

Amazing work. Thanks for pushing innovation forward in this hobby. Though I do think developing some type of standardized durability and reliability test benchmark will be highly valuable.

[@scottmilano2940]

Don’t call it 2207 if it’s not 2207…. FPV Cycle just gives the motor a name, which isn’t great, but is better than mislabling. Otherwise this looks really interesting. Edit: I really appreciate what you are doing in FPV, and testing everything instead of just being a hype man. Just add “class” to the name, especially on the pre-order pages, and I think you’re fine.

[@dooddrones6521]

I like Chris Rosser, but was kind of hoping the top comment would be the motor measurements

[@Vousie]

100% Pretty misleading to put it in the title, even though he does say it here (not everyone who buys this motor will have watched this video). Also kinda ridiculous that he wants people to keep the actual size "secret". It's not like there's gonna be this "magical" set of dimensions that are somehow better than any others. It's also plainly, physically measurable, so it's likely not gonna be long before someone does publish it.

[@scottmilano2940]

​@@dooddrones6521 It’s 34g, and the FPVCycle 25mm imperial is 35g, where the Five33 2207 is 28g. It’s not a crazy difference but certainly for the weight it seems like it should be bigger than 2207. The steal doesn’t help the weight, but appears to add power.

[@cinemoriahFPV]

What part of 2207 class do you not understand?

[@scottmilano2940]

@@cinemoriahFPV Title is “AOS Supernova 2207” not “AOS Supernova 2207 CLASS”. I think I’d be ok if “class” was added to the name. Though Five33’s 2207 is 28g where this is 34g. But ok it’s maybe it’s more durable. Even the pre-order page just says “2207” not “2207 class”

[@remotecontrolaholic]

Chris, this is something truly exciting to me. I studied Aerospace Engineering and one thing that really stuck with me was a lecturer's advice that one way to really be valuable as an engineer is when you can not only find a good solution, but use numerical and/or analytical processes to find what you believe to be the best achievable solution for the design requirements and available technology. Now I wonder if you could apply this model and process to optimize for a smaller motor class, such as for Sub-250g builds?

[@tiwidub8809]

Excellence is here as usual, Chris. Thank you. I just ordered your motorz ! ❤

[@alvarez7777777]

Oh Man, I love the intro :-) what you described is an excellent engineering design exploration exercise with prototyping and manufacturing… would love to know more about the FEM you have written to test the virtual models. Great stuff!

[@user-nt5vg8zx2c]

Good job! You really demonstrated your amazing engineering skills and enthusiasm by perfecting the quad engine, which, according to almost everyone, was already as efficient as possible

[@sylaswojciechowski6895]

Very cool. Thanks for all your work!

[@coffeedev643]

I’m totally putting these motors in my next build! Amazing work Chris!

[@skysailorfpv]

I am definitely buying a set to put on my AOS 5 v2 can't wait., thank you for all of your work.

[@pixonification]

Great work! Already exited to have them. 3.5inch quads are getting more popular now, would be cool to see the best motors for them too.

[@xnoux1]

Go check recursion labs T-motor 1404 for super light 3.5 inch

[@pixonification]

@@xnoux1yeah, but key word was "the best". Im happy with xing 1504s.

[@xnoux1]

@@pixonification he did the same kind of testing than Chris but for 1404 motors. Finding "the best" for 3.5 inch. Anyway, if you’re happy, I’m happy.

[@jakeeames725]

We are so lucky to have this man in our community. Thank you again sir! Def buying a set or 12

[@MountaineerFPV]

Well done Chris! Thank you for the innovation 👍👍👊

[@ChrisRiley3D-Everything]

I would love to have a set but not for 130 dollars if you include tax & shipping. Especially if i don't know what the true size is. But they look nice. So Bo how many did you pre order? hahahaha i know you love that power! and will want a few to try. You be sure to let me know if this hype is real.

[@Flexo3D]

I don’t know about this not sharing actual stator specs. I mean, if it’s a 2208 of course it will outperform a 2207. But calling it a 2207 would be a bit disingenuous. So is it a 2207 or no?

[@PalmliX]

Ultimately stator proportions are kind of a meaningless metric. It's not stator proportions that make drones fly, its power vs weight. If it weighs the same as other 2207 motors then it's reasonable to compare them. He doesn't want the stator specs released because he'd like this motor to actually be on the market for 5 seconds before getting cloned, which will happen anyway, he's just trying to slow that down a bit.

[@Kai-P]

Since it has the weight of 2207 with a much thicker flux ring, I assume the stator is actually smaller. I also assume if he released a 2106 motor or something like that, all the talk would be about the size, how it's super heavy for the size etc, instead of focusing on the results compared to 2207 motors. All just a guess ofc.

[@Bruno-cb5gk]

@@Kai-P Yeah, I think the goal is to move the talk away from the size as what makes it unique.

[@jovaraszigmantas]

Definitely agree, it is like calling an 18650 battery although it is not 18x65mm size. Yes perhaps the motor size means nothing but then do not give size at all. To be honest publishing the dimensions now would not make too much of a difference given that those who want to find out, will find out.

[@Bruno-cb5gk]

@@jovaraszigmantas an 18650 being a different size would make it incompatible with many applications. An FPV motor only needs to have the right mounting pattern to be compatible. The 2207 name is used because that's what people search for. Can't sell a product no one will find.

[@DINSTAAR-FPV]

Amazing work!

[@josiahmos5880]

That's amazing! Would love a smaller motor as well.. Perhaps something like a 1405 or 1604. :)

[@ChrisRosser]

I'll see what I can do!

[@icebalm]

Echoing this, something for 3.5" sub250.

[@EagleFPV43]

​@@ChrisRosser1504 would be a cool size for 3.5 inch drones

[@AfafPrinceOSH]

​@@ChrisRosserI still didn't get how it got that design increased it's all round specs?

[@RCRitterFPV]

Yes Please. For the AOS 3.5 with an o3... maybe a 4" biprop... @@ChrisRosser

[@coolchop]

You are so great. Thank you so much for your work. 🚀

[@goldbornmusic2025]

Excerlent knoweldge well done Chris i realy hope this works out well for you.

[@Dedmuus]

Need an aos 7" motor 👀

[@PIDtoolbox]

Oooh, looks like an interesting motor! Is there interest in something similar in the cinelifter size? With that kind of thrust might also be interesting in the larger cinewhoop class carrying a Komodo

[@zer001]

Wow! The Productpage of the AOS 2207 on your Website is absolute phenomenal.

[@olafschermann1592]

Great work!

[@lambo_drives]

there is SOOO much talk about this motor. hope it has the durability edge too - sounds amazing

[@marcino.3361]

Well done Chris!! Good reverse engineering, perfect knowledge and aplication into design. I hope RCinPower will share with you some of the benefits :P

[@scoptimizations]

Good advertisement video. You sold it to me. 🤣 really exited about it. Grettings from germany!

[@masterlegend4996]

If you're the one, who did it, Hats off! Please Make Brilliant breakthroughs like this! The world is waiting for people like you, but it just ignores many of them!

[@ZSMracing]

Thank you for for making these motors run so great

[@dekutree64]

4:35 Surprising you're able to get higher acceleration while adding a significant amount of semi-dead weight at the outer radius where it has maximum inertia. Most of the motors I checked had very little field leakage measurable by linear hall sensors on the outside of the rotor, so I figured the flux ring thickness was already into diminishing returns in terms of magnetic performance.

[@ChrisRosser]

The total inertia of magnets and flux ring is only very slightly more than a typical motor but the extra torque is 33% more so that dominates.

[@fpvgiggles]

OMG !!! NICE!!!!! SO very excited!

[@jmc_fpv]

Amazing Chris! 👏 very beautiful job!!

[@mfrfpv9079]

I'll be happy to test these out for a bando certification 😊

[@Kiromos]

This is the most excited I have been about a motor in years. Congratulations on your breakthrough. Do you plan to optimize other motor sizes? Do your tweaks to the modeling software work for larger rc plane motors? It would be amazing to see new 2212 sized motors built for efficiency and power. Amazing work! Thank you for sharing!

[@vdz89]

What breakthrough? He made 2308 motor and called it 2207. He also compared it to 2207. If we exclude the weight, of course the 2308 will be better than the 2207.

[@Kiromos]

@@vdz89 I mean.. did you watch the 12 minute video above? Compared to 2207 motors of the ***same*** weight class he has produced a motor with better efficiency, power, and responsiveness... for no additional weight... you know... a breakthrough... I think it is mentioned somewhere out there he actually used smaller magnets and a thicker flux core or something like that rather than the industry's trend of bigger magnets and a a thinner flux core. Also, his stator core is hollow, between those two weight savings it allows his physical dimension to be slightly larger while gaining no weight. So it is a motor that spins a 5" prop that weighs the same as all the other motors designed to spin a 5" prop. The reason you don't compare this to a 2308 is because they weigh more... Here, I found the video where he gets into the more technical design decisions: kzbin.info/www/bejne/r6m9i2WDaMyFr6s good luck trying to watch a 40 minute video though.

[@BumbleBeeFPV]

Congrats. Very impressive engineering.

[@hotkatgotama]

Please make a version for 7" props and the AOS UL7

[@Imakilln]

Nice motors! Are you going to design more for other prop sizes or different KV's? I'd love to try something designed for 6/7" props!

[@chrisB_OG]

Yeah Chris Rosser! Can’t wait to try these. Peace and love from Rhode Island

[@chrisB_OG]

I can imagine how excited you are for these. I’m excited for you

[@juergenbillich1850]

Very well done Chris. A sharp mind + Science & engineering and computer modeling is the way to optimization. Why do we not see any axial flux motors yet? Should bring down the weight and increase efficiency even more. what you do and the way you present it is outstanding..... please keep it up

[@miroheymann5882]

I like the Motor and its stats but i hate the scaled Graphs

[@ChrisRosser]

Ah that'll be Excel's "auto scale" at work!

[@RexAnothership]

Great work Chris! Finally someone designed a FPV motor with the magnetic circuit in mind. I too am a designer working on a new class of EDF for RC & drone market. I'm going to be using your motors. It would be nice if you designed a new motor keeping in mind your work ethics to work with this new class of EDF. Wish list... high torque, very high RPM (the highest possible) smaller diameter and to compensate longer length if needed. If possible consider axial flux. Also look into the benefits of ultra pure iron (99.995%) laminations over silicon steel laminations or metglass for the flux circuit. Keep up the great work!

[@kylecampbell586]

Also was wondering does the the polarity reverse in order attract and repel so that power is more evenly distributed as each armacher passes a magnet or are they just atracked to the magnet and then turn off. Or is it possible to reverse the power on the individual armatures/coils

[@aphinion]

I already spotted those motors on your site ;) Those values really proof that nobody has done FEM-Optimization for those drone motors ever before... and it makes me wonder how much more this can be iterated forward... Imma building another drone I guess :P

[@petrmaliarov6441]

Hi Chris, congrats you with a new awesome product! Thank you for your huge contribution to our hobby! Could you share what tools you use for digital twinning?

[@SmackaMuta]

Please make a 1604 for 3.5" props!

[@TheTrumanZoo]

glad i found this channel.

[@CarbonGlassMan]

Your patented vibration isolation design looks cool too. It made me think of what a gyro silicon looks like under a microscope.

[@gpegasusm]

Do you think the key design principles can be applied to other motor sizes, like for 2.5" or 3" props, and get similar performance deltas? Or would that require a new sweep of tests, data acquisition, and FEA optimization for that specific prop size?

[@nikotttin]

We totally need better micro motors! All the way down to 070x please ;)

[@ChrisRosser]

I think the model should be good across different sizes (I'd need to check this) so it should be possible to optimise motors for any size.

[@nikotttin]

@@ChrisRosser That would be amazing... :)

[@BuddsSkyCam]

Would love to see how efficient of a motor you could build if you wanted it to produce the same average TQ and thrust in comparison to an average 2306. Not everyone needs the power but if a line of motor was designed to be the most efficient motors, it would be something I would love for my live TV gigs. I'm filming for NBC & Peacock again this year for the professional supercross and motocross events. Always looking to gain every minute and second I can to stay in the air longer.

[@savagebrian1234]

great being able to get in uk for the same price or cheaper, can't wait to try them😋

[@kylecampbell586]

Have you considered turning the struts that hold the drums in too propeller shape for cooling if left in the shape they are now they hold the potential for deflection of the air that would potentially cool the coils?

[@FPVNZ1]

You are the G.O.A.T Chris thank you for your work and your videos 👍

[@Rocketfpv]

Just amazing!

[@flyingsrn]

Chris, you are legend!

[@MCsCreations]

Brilliant work, Chris! Really well done! 😃 Looking forward to see people trying it! Stay safe there with your family! 🖖😊

[@TechnicallyTom]

I really enjoy watching your videos and learning about your process for improving designs but can’t help but think how well this would pair wit how Bob Roogie designs motors. How you select a motor could be used to find a few motor designs that could then be tested. I have yet to see any real world reviews or tests of your motor. When you say that your motor is a certain percentage more efficient, it kind of sounds like I should be able to fly that percentage of time longer if I’m just cruising around but we both know that is not how it really works. Would be nice to see a variety of motor sizes, especially motors sized for sub 250.

[@terminsane]

Is there a way to put another set of magnets on the inside, in the hollowed out core?

[@SagivLevi-oc3rn]

@ChrisRosser what esc are you using for you tests?, will a 45A esc be able to push 60A to the motors?

[@frasersteen]

What would be really useful for fixed wing pilots is knowing what the max reasonable amps it can run would be. Eg could I run this with a 55x65 prop on a race wing, will it handle a 6x4 etc

[@modquad18]

Strong Work CR 💪🏽 Would be fantastic if you could apply your process to 07/08 and 10/11mm BL motors as well. And would similarly be a game-changer if you could also model/refine video antennas.

[@sigterm15]

what would you like to do with video antennas? RF is much more complicated than BLDC motors. Too complicated for chris.

[@modquad18]

@@sigterm15His contribution would in come in the form of the modeling he does - finding that undiscovered needle in the haystack.

[@nendhang]

hi Chris, could you do a video on the simulation software ?

[@autonomousreviews2521]

Fantastic!

[@dfgaJK]

Please do a comparison against a motor with the same dimension (with, height) stator.

[@rocoltro]

Congrats! Great work! What about a 4S version, higher KV?

[@hrmny_]

would kinda prefer the y-axis on those graphs to start at 0 very impressive motor though, any chance you'll do one for tiny whoops next?

[@ChrisRosser]

Fair enough, that's Excel "auto scale" for you 🤣 I'm sure this approach could be applied for tiny whoops.

[@lethalpaw7330]

Dear Chris, first of all: huge fan, your tuning guide made my quad fly like its strapped to rails! I have a quick question about the optimisation of prop efficiency. It is common knowledge that an airfoil generates lift by having a higher airflow on the top than on the bottom. When building RC Wings you sometimes hear a Foil generates even more lift when its surface is rougher on the top than on the bottom since the airflow gets slowed down even further. Is this also true for FPV Props and is there a chance you could test that with your thruststand. I thought of using the same prop twice in a row first in its original state and after working on it with sanding paper. Preferably with a prop of size and weight where the material loss doesn’t significantly affect the weight. Although I don’t think the effects will make difference like day and night, but for tiny whoops where every gram of lift matters it could be a new aspect when it comes to Propeller efficiency.

[@jok250]

Hi Chris, any plans to produce a ~2500kV version for 4S?

[@Catiadr]

I'm interested in the design and analysis tools that you used and your reasons for that choice.

[@JustSomeGuy1979]

@ChrisRosser Thank you for your diligence and contribution.I just ordered a set today.I was wondering if and really hoping you could recommend some BLHeli32 ramp up,timing and pwm settings.

[@GiovanniEsposito5]

Can you pulish the efficiency curve at 6s wit some of the props you tested? From the data on the webshops it seems that at max thrust the efficiency is really bad. It doesn't give it justice, given that max thrust is considerably more than the rivals.

[@alainassaf]

Thanks for all what you are doing for the hobby !! Time to change motor names now that weight is all what defines a motor :) We will have the AOS34 race which is more powerful, the AOS34 freestyle more durable and the AOS34 cinema with a pancake geometry :)

[@mrthingdudeman]

I don't understand why you would not publish the motor dimensions. _Literally_, every motor is listed by their stator volume, but then you start comparing it against motors that are listed by their stator volume. Yet, yours isn't, so it isn't a valid comparison. I get that you are trying to sell your stuff, but it feels like you are hiding something. You are using numbers to prove your point, which is good, but again, why obfuscate the most basic of motor information. FPVcycle does the samething.. They list a 25mm motor, what is that? What does that mean? Can we compare these motors? Keep your secret sauce, but if you are trying to take the mantle of motor tester and educate us all on what makes a good motor, then at least help everyone get there.

[@ChrisRosser]

I think of it like this: there are performance numbers and design numbers. I'll happily publish all the performance numbers, power, weight etc. Everyone has a right to know the performance numbers to make a good choice. Design numbers have no bearing for the pilot (except as a substitute for performance data) but make it easy to copy the product so they are kept secret.

[@maryjane136]

My motors were delivered. Which ESC do you guys recommend for highspeed? For example: Hobbywing XRotor 60A, Lumenier Elite 60A or something else? Looking 30x30 for Five33 Switchback HD.

[@Lift33d]

Very cool man! Im going to try these for 3D Flying. In the 3d world alot of us have a hard time picking a good motor that can switch direction efficiently. Cant wait to test out but ill have to switch to 6s as I use 4s Hypetrain Acros and they dont seem to be the best..

[@matt777]

Something Designed by you is always a quality amazing product! Can't wait to try one out for myself!

[@MysteryD]

Slurp slurp

[@jesuschrist8068]

bro changed the entire brushless motor game

[@sotirisstrouthias]

What about the tuning ? If i change to this motors for my aos 5" what should i do with the tuning?

[@leenanipun1269]

Nice, what tool from MIT did you use to simulate the motors?

[@isaiahfreerksen334]

Hello Chris, Your great/hard work has paid off. Congrats!!! I was curious what simulations software you used to design this new motor. I am starting on my journey to learning electric motor design, focusing at the moment on the axial flux motor type. I will be using it in a micro-mobility vehicles. I find your way of thinking about the design process very forward looking and am interested in learning a little more about it. Well thank you for your time! Isaiah

[@frankyfrench5279]

Hi Chris could you please plotand show the efficiency curves over the full RPM range for the 3 motors. I have found efficiency to be far from linear and very different curves between motors. Also the minimum startup RPM current can be very different between motors. I fly only full throttle very sporadically just for power loops punch outs, so i select my motor to be most efficient at 30-40% of RPM and less effiency at full throttle has minimum effect for me. (i am not a racer) For long rangers and for (small

[@BriaNFPS]

"If you measure the product dimensions, don't publish it" WUUUUUT

[@yotwist_]

Why even ask that, now I want to buy one just to publish the measurements

[@MTB_FPV]

Just click a link, and it has a diagram with measurements on?

[@TheVeganarchism]

It’s a genius marketing ploy!

[@sgcdialler]

Stupid fuckin' decision tbh

[@nateteator3901]

Haha, You don't get to know

[@icp-trek]

Hello Chris, you showed a 10" frame during your intervju with JB. When will it be available?

[@kyojurorengoku7451]

where does Velox V3 2207 1950 KV motor stand in perespective to AOS SUPERNOVA 2207 1950 KV . i reall want to know where velox stands . thank you

[@sytyuk]

Hi Chris, I have bought motors 2207 1980kv and I have noticed that motors are heating and pretty hot after flying, is it fine?

[@christhorney]

heck yes, i cant wait for the 7inch and 3.5inch motors, your frames really do rock, you should send a set of these motors to mrsteele rofl!

[@dfgaJK]

Please clarify how you calculated the "-4.3%" weight of the Wasp Major?

[@ChrisRosser]

Weight of the motor with 5" wires compared to average weight of all 2207 motors tested with 5" wires

[@dfgaJK]

@@ChrisRosser please clarify the calculation, I can't get 4.3% with the values read from the graph.

[@2Meerkats]

My question - with such a leap, what is the smallest motor (less moment arm inertia) you could make for " sub 250g

[@bengundermann3295]

Have you looked into using a halbach array on the bell? I'd be curious if the directionality of the magnetic field would be worth the additional complexity.

[@lievenvv]

Great suggestion 👍👍

[@Gabriel-qh5yv]

you made my curious... i have to get a set of to test them in real fly

[@cinemoriahFPV]

Please make a 30xx size stator for 7-8 inch cinelifters 😄

[@fkamaral]

Chris, a little help, I got those motor installed on my Drone today, but the PID form them that comes by default on betaflight 4.3 just sucks for it, it works with a 3S battery, it sound like one or two bearings are hitting it other with a 4S battery and it sounds like all bearings are going crazy with a 6S battery… do you have any baselines of PID where I can start? My ESC is a BLhelli, not a. lHelli32…

[@fkamaral]

Also to add to that, with a 6S the motors and the battery get extremely hot, and a 6S 1100Mah is depleted in about 40 seconds

[@oneirospb470]

Dude I just slammed those beasts on my drone today... and probwash is basically gone! looking forward to doing some PID tuning... Until then - thanks a lot! Great work! The motors are just insane and feel so nice when flying!

[@leonf8870]

What do you think of them? Are you happy with the battery performance and are they stable during crashes? I'm thinking about getting those or the xing2.

[@oneirospb470]

@@leonf8870 I like them a lot. Battery life does not seem to differ much, tho I'm more free styling than racing so I'm not punching them out all time. I havent had a serious crash with em yet, just hit a few branches 'n stuff - they didn't really care. I also thought about xing2, ended up with the supernova instead. Was flying with schubkraft motors before

[@danizurdo7843]

wow, OOS in hobbyrc happy for it, just hope they will not be too difficult to buy in Europe

[@aerialimagery3216]

Super interesting motor! I love the thought process that went into these. Three things I wanted to mention: I thought you said it was going to be $25 but it looks like it is $28-$29? Also, I think a black version would sell great too. I think some people take the color of the motor into account and it it’s doesn’t go with their TPU colors, they don’t buy it. Lastly, I think you would sell a lot of them at RDQ or GetFPV in the USA.

[@PhysicsOperator]

$25 for a pack of 4

If you look up "Twans 2207 Plus" it's the same motor just a custom build from rcinpower, rosser even chose the same colors. I'm sure that's just a coincidence.

[@eugeneforshter]

Great job!🎉 In my drone projects I am focusing mostly on efficiency, not the power. Can you share efficiency against the most efficient motor you have tested? Thank you!

[@MarcBergenthal007]

Congratulations on the product lunch. Really interesting motors and curious to see how this will affect motor development. The level of engineering is insane. One comment/thought on the motor naming/size. To me, not being an expert on this, it looks a bit odd. If the motor doesn't follow the traditional size convention, isn't it a bit like comparing apples to oranges? Comparing a larger size motor to other 2207s would most likely also yield results where the larger size motor performs better. Maybe I missed the part in the video, but could you explain why or what determines this motor to be in the 2207 "class" even though it is larger in size? Really enjoying your videos. Thank you very much! 🙂

[@ChrisRosser]

Ideally motors would be labelled by their weight class. A heavier motor should give more performance than a lighter motor of the same dimensions. Unfortunately we live in the real world where people buy 2207 motors for 5" drones so this motor had to be called a 2207 to clearly signal what the motor is for.

[@scu-dub]

I would love to have these for my first "Secret" 5 inch🤫 faa....😁 however I would really love an 1804 4s version for a sub 250 build🙏🏼 awesome motors ✌🏼

[@thetom1309]

This is amazing! I had this one question for some time, seems like a good moment to ask : did you try to repeat same motor tests to make sure results are the same ... say a month later ? Of course there may be a drift due to ambient temperature or ambient magnetic field or something like capacitors degradation over time. But do you see same pattern between different motors if you redo motor bench tests again ?

[@ChrisRosser]

I tested multiple samples and have retested motors over time. In general the results vary by up to 1% over time.