Alternative motor windings and drive schemes

[Clugh]

Hi ,
This is something you and your friends at motors by Gotha should keep in mind as it pertains to forums technical discussions and false narratives about proven winding technologies, machine failures, and solutions as well.

Honesty is absolutely critical in any technical debate for several reasons:
1. Accuracy of Information

Technical discussions rely on facts, data, and logical reasoning. If participants are dishonest—by misrepresenting data, exaggerating claims, or hiding limitations—the entire debate becomes flawed. Decisions based on false information can lead to system failures, wasted resources, or safety hazards.
2. Trust and Collaboration

Engineering and technical work often involve teams. Honesty builds trust among team members, enabling open communication and constructive problem-solving. Without trust, collaboration breaks down, and people may withhold ideas or feedback.
3. Problem-Solving Integrity

Technical debates aim to find the best solution, not to “win” an argument. If someone is dishonest to protect their ego or push an agenda, the focus shifts from solving the problem to defending positions—leading to poor outcomes.
4. Ethical and Professional Standards

Most technical fields have codes of ethics (e.g., IEEE, ASME) that emphasize honesty because technical decisions can impact public safety, financial stability, and environmental health. Dishonesty can cause catastrophic consequences.
5. Long-Term Reputation

In technical environments, credibility is everything. If someone is caught being dishonest, it damages their reputation and can affect career growth. Conversely, honesty—even when admitting mistakes—builds respect.

Sorry there is not more to report here... enjoy your subscriptions


Remember this......

The IEEE and other such entities strive to maintain that code of ethics. The data driven information provided from such groups is not motivated by a sale or maintaining someone's ego. Intelligent individuals can clearly understand this reasoning.

Happy Hybrids....
Hubert

[Clugh]

Adam has a direct drive contra Halbach with PARALLEL slots for F3A but it didn't win the worlds. A single pyro 600 with a traditional wind with a contra planetary gearbox did so already you'd be going backwards. The Halbach is PM heavy machine. Very few in the EV world are currently looking at a Halbach for ma$$ production. It's quite the opposite; they are looking for pm-less solutions. Like synchronous SRM's. Considering that the better solution for the average hobbyist that actually winds his own motor is to wind an adequate wye to delta serially connected machine for tangible improvement over the 12N10P wye windings that have already won many championships in various E flight classes.

[Clugh]

Its old news that if the ratio of radial component to the main poles isn't correct in the Halbach the torque ripple increases versus being minimized a 12N10P/14P hybrid wind is so much simpler...

[Clugh]

By the way there is nothing new about a 3d printed machine using zip drive iron or the 14 pole halbach that never ran. It is funny about the 50/50 radial to circumferential ratio as that determines how sinus the BEMF would be. The wrong ratio and it is no cleaner than a BLDC. The ratio is critical to a sinus signature. This was pointed out and the response was ad hominem, & fallacy, and then you never see it run.

It would be better to utilize additive manufacturing and print something actually useful in a real motor like semi magnetic slot wedges or a low loss magnetic core with a real rotor that will not fall apart.

You waste alot of time when custom winding solutions are available and easy to implement for experienced winders. They actually run too.

No dreaming or nonsense just reality!


The technology of 3d printed motors and components is nearly 15 years old now. Its definitely nothing new, exotic , or special about it. 7 years and you still have not managed to simply wind and run a hybrid on a conventional BLDC frame for examination.

Offenbar ist es sehr schwierig, eine sinnvolle Unterhaltung über Motorsteuerung und -design zu führen, die tatsächlich zu einer Verbesserung für den Hobbybastler führt.

[Clugh]

ABC 1818 calculated as most efficient prop in its database for performance hydro @ 12s lipo 9800 mah

33,940 rpm
153 amps
Pin 6.394 kilowatts
Pout 6.125 kilowatts
Run time 3.85 minutes
Est speed 90.12 mph or 145.03408 km/h
Eff. 95.80 %

In a performance hydro with 10s lipo @ 9800 mah and a castle 240. Prop wizard selected an ABC 1918 as the most efficient prop for the setup.
Resultant:
28,221 rpm
141 amps
4,955.78 watts Pin
4,728.58 watts Pout
run time 4.15 minutes
est speed 79.20 mph or 127.46 Km/h
Eff. 95.42%

[Clugh]

Here is the H1818 raw beryllium blank I'll ask Brian to prep for my 1/8 scales. This prop and the 1919 is prop wizard selected specifically for my custom wound Align.


And some other goodies for the spring....

[Clugh]

If you think your motor has torque turn a few of these boat props. These supercavitating surface piercing boat propellers have aspect ratios of 2.3 and 2.4.. I bet you get the smoke without the 8 blades...

[Clugh]

Guten Morgen Ralph! Immer noch Abonnent... Ja, ja, gern geschehen... Ein paar Kreise nach dem Flug zu drehen, wird die Magnete in deinen Geräten nicht retten, deren Curie-Temperatur offensichtlich überschritten wurde. Also hör bitte auf, im Forum Dinge zu behaupten, die nicht im Entferntesten der Wahrheit entsprechen.

Der Hauptgrund für übermäßige Hitzeentwicklung ist eine Belastung, die der Motor nicht dauerhaft bewältigen kann. Es handelt sich um einen Motor, dessen Leistung für die erforderliche Last nicht ausreicht. Dies ist auch der offensichtlichste Grund für eine Desynchronisation. Das erforderliche Kippmoment ist schlichtweg nicht vorhanden.

Viel Spaß mit Ihrem "neuen" Konto!



Thank you.
Hubert

[Clugh]

BTW I finally linked with Brian Buass to prepare my ABC propellers for SAW and oval speed runs. We are both looking forward to working together.

Im sure alot of you...didn't know or do not know that Brian wound the motors and built the airframes they flew that competed in the 1998 F5D World Championship. Brian currently hold several records in fast Electric boats. He also has some pull at castle...

Generally he is just and all around highly accomplished Modeler. Nothing he builds is trash and always fast as ever.


In the attachment is some of his. ABC prop work

[Clugh]

Question:
If you buy an economy based inverter the have to hack it with an Arduino microprocessor or whatever to be full featured. In time and extra componentry what have you saved? If you need to reinvent its heatsink and print a case for it to house real bulk capacitance etc. What have you $$aved? It's cool to tinker like that if that is what excites an advanced hobbyist. But if you are really into higher challenges why hack versus build a purpose built embedded flight solution withe real capability for UAV flight. This also supports Estonia instead.

YOU... wont build anything with a shorter current path. It is also floating point space vector control.

[Clugh]

I have 3 FR power 4730 560 Kv motors coming in from Fabrizio , the owner, to tune. I'm doing one for him and the other 2 I get to keep. I will put them up for sale. Here are the OEM specifications.

The motor is normally 468.00 USD!!



Stator Diameter 47 mm (1.85 in)
Stator Thickness 30 mm (1.18 in)
No. of Stator Arms 12
Magnet Poles 10
Motor Wind 5+4Turn Delta
Motor Wire 2 Strand 1.0 mm
Motor Kv 560 KV RPM / Volt
No-Load Current (Io/10V) 2.29 Amps
Motor Resistance (Rm) 0.011 Ohms
Max Continuous Current 150 Amps
Max Continuous Power 7500Watts
Weight 550 Grams
Outside Diameter 58.5 mm
Shaft Diameter 6 mm
Body Length 58.7 mm
Overall Shaft Length 110 mm
Max Lipo Cell 12s
Max Peak Current 270 A (2 seconds)
Max Peak Power 13500 Watts (2 seconds)
Motor Timing 5deg-8deg suggested auto timing

FR Power like CK Aero Flies with Clugh

Bi Bi... 😛
Hubert

I definitely plan to strip it of its large conductor bifilar nonsense. Especially a delta with additional large parallel conductors that are already subject to skin losses in major proximity to one another with no twist. The lower DC resistance is not worth the AC noise as the AC resistance can be as much as 10X's higher.. All that noise heats the magnets and iron up quicker....the perfect precursor to desynchronization.

Your speed plane becomes a smoke crop duster.... gliding it around a few minutes after a speed run is not going to save the magnets. That! is obviously proven in the tragic videos on you tube where they are left with no choice but to glide because the motor is already gone

Once the magnets in the rotor reach a certain temperature they cannot return to full power by cooling them down. I don't care how quickly you try to cool them back down.

This after run gliding was suggested as a remedy to cool motors that are blowing out magnets at temperatures greater than 180 degrees Celsius and it is real BS! The proof is right there on the bench of the editor in Gotha, trying to put it on the pilots that cannot be at fault if they are told the motors can make clean power that they cannot..

DC does not generate losses based on frequency. DC is stall in a BLDC motor boo boo. The eta there is 0% You need to learn to accept that as life.



And isn't it quite silly to run a motor in a speed trap competition with an antiquated or economy based inverter without an iota of motor telemetry in the first place???

You might know the real in flight motor temps then and pierce right through any goofy lies posted on social media.

Economy pricing and high end competition for speed records do not go together anyway.

[Clugh]

Hydra Cobra 5 is 12s lipo with big amps. (12S XLX Hydra with new features)

HYDRA COBRA 5 NEW FEATURES:

• 32-Bit processing power for smoother motor control and improved response time.
• Enhanced Data Logging includes:
  • Double the maximum sample frequency of older generations.
  • 8x increased logging time of older generations.
  • ESC electrical motor timing data.
  • Acceleration data via onboard accelerometer.
  • Looping feature prevents interruptions in data log recording.
• Additional tuning features include:
  • Improved braking adjustability
  • Separate brake and reverse curves
  • Highly adjustable internal BEC (5.0V - 8.5V adjustable in 0.1V increments)
• Access to tuning options and firmware updates for free with Castle Link V4 USB programmer included with purchase.
• Optional smartphone-based programming with the B-LINK™ 2 Bluetooth Interface(sold separately) and free Castle Link 2 app available on Google Play or Apple App Store.
• Upgraded current-sensing and thermal protection system actively mitigates the risk of failure in aggressive or high-load setups. Ready

Happy 2026!

This is a quality investment.

[Clugh]

I have 3 FR power 4730 560 Kv motors coming in from Fabrizio , the owner, to tune. I'm doing one for him and the other 2 I get to keep. I will put them up for sale. Here are the OEM specifications.

The motor is normally 468.00 USD!!



Stator Diameter 47 mm (1.85 in)
Stator Thickness 30 mm (1.18 in)
No. of Stator Arms 12
Magnet Poles 10
Motor Wind 5+4Turn Delta
Motor Wire 2 Strand 1.0 mm
Motor Kv 560 KV RPM / Volt
No-Load Current (Io/10V) 2.29 Amps
Motor Resistance (Rm) 0.011 Ohms
Max Continuous Current 150 Amps
Max Continuous Power 7500Watts
Weight 550 Grams
Outside Diameter 58.5 mm
Shaft Diameter 6 mm
Body Length 58.7 mm
Overall Shaft Length 110 mm
Max Lipo Cell 12s
Max Peak Current 270 A (2 seconds)
Max Peak Power 13500 Watts (2 seconds)
Motor Timing 5deg-8deg suggested auto timing

FR Power like CK Aero Flies with Clugh

Bi Bi... 😛
Hubert

[Clugh]

SORRY MR BEAN ..I couldn't accept your friends request. But I see when they banned your boho1 profile created the MR Bean profile the same day. Anyone that paid attention to the Mr Bean profile join and activity dates of you original BANNED boho1 profile could see the site security circumvention.

But anyhow Enjoy the blog... where I have full control.

Nothings has changed. We still build and wind better motors here in the Research Triangle Park area of North Carolina than in Gotha Germany. We cost less for much better rebuilding materials....we run cooler and more efficiently with many more winding options and a full understanding combined with a real and professional background in bldc machines and the inverters that run them.

https://www.clughmotors.com/

The Thungarian drives with 5 dollar bearings are truly mid. That's a fact you cannot ban... Unfortunately for you. There is a higher concentration of academics and intellectuals in RTP.

We also don't inject lies about BLDC motor design into forum technical sections to rip modelers and fellow hobbyist off.


Thanks for your continued subscriptions,
Hubert

[Clugh]

[Clugh]

BTW! I finally glued the GFRP bulkhead into my Speedfire2 fuselage last night. This is my fun plane I had Dr Janku build me for unofficial speed not just f5B. This one has all the reinforcement you can get from Petr. The high temp epoxy iI use is now nice and cured overnight. I wetted the inside of the fuselage bore well before I inserted it from the backside . I let the entire fuselages weight with the wings mounted keep pressure on it while it cured by letting it hang over the ceiling fan's sconce with 30 lb. monofilament and 2 identical gold plated fishing hooks through 2 of the holes 180 degrees apart. I made sure to get it as square in the bore as possible. Dr Janku does an excellent job of cutting his fuselage perfectly square at the nose, so I used that as a guide to square the motor bulkhead before I left it alone to cure. Then I came back after the fact and brushed a fillet in and let that cure. I have it suspended now and just brushed in another final fillet to make sure the perforated holes Petr put in the GFRP around the edge are filled to the previously wetted interior walls of the fuselage. It is not going anywhere.

It is ready to accept the supernova 3225 on a 3.8-1 maxon planetary gearbox internally mounted, I built for it. It is not designed to try to draw 185 amperes from the small motor direct drive and fry it .It is designed to pull an 18 in high pitch prop like Gerben would run on a world class F5B plane on 10 s lipo with slightly more pitch just for fun. It really doesn't need any special propeller to fly really fast and fun. This is why I choose this one as a fun flyer. I don't need any special favors. I'm going to build a larger plane 10 - 20 s myself from scratch.

[Clugh]

Its 5:06 EST here so when the sun actually comes up Ill go out and get some bondo or modeling clay to work on some molds to duplicate some propeller plugs into carbon fiber. A Carbon fiber APC 7 X 15 should be more fun. I can also work on a 12 X 25 saw with a much thicker root for the yoke.....

[Clugh]

I also have an excellent relationship with APD and Steve Neu so if you want APD I can definitely get it. Etti Marine can provide the lith super caps. 2X's parallel is 6 million microfarads

I think the button supercap is a million micro farads @ 5 volts i was going to strap one across the leads on each EV cell. Dunno how the charger would see it but I couldn't overcharge them in a balanced charge. You can also improve the electrolytic cap if you strap a MLCC across the leads.

And then I have the hybrid capacitors. 9000uf worth that can easily be water cooled .

Roll the bean footage ...

Thanks
Hubert

[Clugh]

MK has assured me that anyone can purchase his Typhoon plane. All you have to do is contact him on FB and they build a beautiful plane you can mount a powersystem like I am building. There is 10s lipo but I think I'm building for between 12 to 20S. It all depends on the prop. I dont mind winding it for 100 volts if you are daring. You need a similar aspect ratio and wing loading . All I can do is build the power system then weigh it. I wont build it for light weight necessarily. These are the big boys. They have a 100 volt class. I can build a Talega based 100 volt GaN drive that's totally agnostic.



Again it can learn the prop load and optimize around that. It can even do it on the bench if you can provide the simulated windspeed in your tunnel. Yall boys do have a wind tunnel right?



Hubert

[Clugh]

I have a turbo spinner on 8mm yoke here that works. This 10 X 6 folder has a thick root and nice blade profile to work off Now I can build a carbon fiber high pitch folder for it. I'm thinking a 16 X 18 at 12000 rpm would be potent. You need a fuselage similar to these that takes a 64 mm spinner. If you want to try 600 km/h.