Alternative motor windings and drive schemes

[Clugh]

Hi Hubert,
In the RC Network thread, Sebastian is of course right when he writes that the blade angle is measured at a diameter of 70%, as that is where the greatest thrust can be expected. It is precisely the case that the thrust value, distributed over the propeller circle area, is greatest at 70 - 75% of the diameter and the technicians therefore measure this as the pitch there. It's already in Dubbs' book. It's a shame that you don't even have the backbone to say Sebsatian, yes you're right. They are such embarrassing model makers.

Happy Amps Christian

.70 is the same for the boat props which are even more complicated to analyze and understand We, you ,Jim and I left alot off information that has been lost but at least i can use his toroidal head on the 2 stroke. Designing that should be fun.


Dubb Jett knows Jim very well and knows he could not touch JA!

Ask Henry Nelson about James. Henry is the last of the Mohicans.

The world lost an Incredible ME and tool maker.

One could easily print this in 2024! Jim would like the manufacturing progression. So easy.....Much less waste.

The explanation for the pitch gauge can be found in the North American Machinist Handbook. Or the engraved base on the gauge itself

If the DNF pilot needs an excerpt to understand how it works i can definitely forward that.

Thanks for your time and patience
Hubert

[Clugh]

Chris
For the drawer slide thrust stand to not give frictional thrust error it need to be changed maglev halbach rail system, magnetic or air bearing Like hyperloop frictionless thrust readings. A hinge less strain gauge set to measure thrust and a reactionary torque sensor with optical tach would be better and easier to setup and interpret accurately the mechanical output.

Why doesn't scorpion put the almighty knockers on their test bench which is capable of capturing the real eta....

maybe that is what measured the 7Nm for 24kW 7455 ..


Layta
Hubert

[Clugh]

Another highly efficient Clugh wound Kontronics pyro 600 powerplant complete for another Brenner coaxial contra drive F3A pilot. The windings are thermally coupled to the stator and it sports orange seal ceramic hybrids.

That's standard issue with the world class pilots and their expensive airplanes.



Thanks for your time and patience
Hubert

[Clugh]

I've received a 14 poler with loose magnets to look at but ..

."We no longer sell spare parts for our engines as there have been an increasing number of problems in the past and we have therefore stopped selling spare parts."
~Andreas Musch~
Technischer Support

So I will not try to repair it because if I lose a magnet I'm done to get exactly the right replacements.. Just ordering a few pm's to swap with a broken one is a slippery slope. I don't know the strength or weight is consistent so the balance an commutation could see anomalies I'm not willing to get into. This means i wind the cores and send the rotor off to Kontronics to make these repairs so if it end out of balance or strange in commutation it will be on the manufacture not me. I may even request it be changed to 10 poles even though the 14 pole should be quieter it seems its the one that shakes the magnets loose. An acoustic test might answer this question empirically. I have a rotor with pm in tact to rebuild it for the pilot but the swapped one will be sent out to the manufacture.

Thanks for subscribing "dresden" you camp here,,,😀 Put that CoFe knocker on scorpions test stand with mechanical output capture and let us see how great its efficiency is...... 1% isnt worth the price of CoFe if Kai's brother motor is simply silicon steel .



YT
Hubert

[Clugh]

There is a video tutorial on how to match the PM's in a lot by strength and also arrange equally around the bell if they are different weights to get as close to balance as possible before balancing. This also will ensure a more uniform commutation throughout the electrical cycles.

This is what you should strive for not just equidistant spacing around the bell. You could split each pm into 2 stacked axially and run them at different widths. Experts know a 7/8 pole pairing will also solve your harmonic problems and reduce torque ripple.

Dr Luk's work suggest the pole pairing follows Gerlings law of different coils sides ratio for an additional 30 degree turn vectorially.

Remember Page 1 post #15 of this thread.

Thats it for todays lesson BORAT!. Get some rest.
Bye Bye...
Hubert

[Clugh]

Hi Chris,
You have to read the thread. Micha is teaching them again.

Joker 5060 Tuningtest als günstige Alternative zu überteuerten Marken | Seite 3 | RC-Network.de

I'm reading closely and very carefully the responses from Dresden . Get ready for mis information that will mysteriously reduce the performance of the Joker brand that is right in line with the scorpions performance for 3 times le$$.




Thank You,
Hubert

[Clugh]

Another Knocker DNF. "It was the batteries fault this time at 230 amperes!.. What hobbyist believe the 8 blade prop with 27 inches of pitch only pulls 230 amperes?



RC Groups - View Single Post - The Typhoon-series! Building of three new F3speedplanes for fun-speed-flying and comp

The scorpions kings paraphrased response..... " It's sad buy another planer like mine"

You see its been 4 days and Greg hasn't got a response on the batteries but every one knows you all run SLS which should be more than adequate unless a goofball selected the wrong ones for the job in the first place.



YT
Hubert

[Chxpress]

Hi Hubert,
yes, there's another one on fire. Thank God nothing happened. But the call for the screwdriver after the plane crashed shows that the people who use this technology have no idea what they are doing. Next time the plane will be upgraded and the tension will be increased. 72 volts is too little so go up to 100 or even more volts. If something happens with that, T. Moldmann is the gentleman who will be questioned urgently.
Thomas Moldtmann Vorsitzender Sportausschuss Rekordflüge hat dass dann zu verantworten.

Happy Amps Christian

[Clugh]

Why one doesn't have the appropriate fire extinguisher around is beyond me. The hobbyist are dangerous and crazy.

I sent u a PM
Thanks
Hugh

[Clugh]

And so the typhoon pilots choice is to buy another 2000.00 plane and put the exact same scorpion power plant in it that keeps kissing the ground on fire...

Thats silly if you ask me. What a hustle....an entire forum of YES men facilitate it.

That Jonestown kool aid is more amazing than any motor ever built


They have to be slow because the pyro 1000 is more powerful and has the record yet they keep putting the George foreman grills from powercroco in the planes.

I have the cooler running more powerful pyros that will work and last longer than 1 event Untwisted Bi filar winds paralleled create a lot of ac resistance and drive higher idle currents which lowers their efficiency. The scorpion kings own data reflects that. He tells you its normal the high idle currents but that's simply not true.



TTYL
Hubert

[Clugh]

powercroco Registered User

AFAIK they used 10S. ("Speed" 5100mAh?) Nomally SLS. But I don't know, how old the cells have been and how good and if they have been warmed sufficiently. We already often have seen that one single bad cell in the pack can cause such problem. Same in plane or in helicopters just this yearand independent from ESC (Kontronik Kosmik, YGE 255HVT) or motor ( with Kontronik Pyro or X-Nova or Scorpion.

Hey Ralph!

Another lie because the constant is your engine. There are no such videos in abundance of any other manufacture burning down continuously because they don't make engines specifically for speed flight. These are results from YOUR speed flight modifications on scorpion engines. NO ONE ELSE!

I knew all I had to do is wait long enough for another lie to be told to the hobbyist!

[Clugh]

When you have to draw 24kW to generate 7Nm of torque something is not optimal with the machine. I'm sure batteries wont like it either.

[Chxpress]

Hi Hubert,
I really, NOT feel sorry for the man. 😂 You can have it another way. I just used round-nose pliers to bend a coil for a Lehner 4125 out of 2.5 mm diameter polyimide wire. This is ready in 3 minutes. Has a resistance of 0.00083 ohms and weighs 30 grams. In the groove, this coil has a fill factor of 73% and as a laser sintering coil in rectangular wire you get a 92.5% fill factor. With the highest heat connection. The wire for a coil of 3 turns has a length of 237.5 mm. A coil like this can be replaced in minutes if something goes wrong. The same coil with the same winding resistance is of course even more electrically suitable with Multifilar wire due to lower eddy current, skin effects and proximity effects. We have received further new orders for electrically powered tanks. A few links to it. If I knew that a motor like this could be given a new winding in minutes using quick, prefabricated coils, that would really annoy me. But He doesn't want it any other way. And calluses on my hands from pulling the wires through the stator slots. He doesn't even use such a thick wire diameter, just Pipifax diameter.🤪

https://www.renk.com/de/produkte/fahrzeugantriebe/hybrid-loesungen

Happy Amps Christian

[Clugh]

"Alles andere ist ja nur mehr oder weniger sinnloses Geschwätz.
Wobei: Auch damit kann man bekanntlich ganze Threads mit mehreren 1000 Beiträgen füllen."
~Powercroco~

[Clugh]

Hi Hubert,
I really, NOT feel sorry for the man. 😂 You can have it another way. I just used round-nose pliers to bend a coil for a Lehner 4125 out of 2.5 mm diameter polyimide wire. This is ready in 3 minutes. Has a resistance of 0.00083 ohms and weighs 30 grams. In the groove, this coil has a fill factor of 73% and as a laser sintering coil in rectangular wire you get a 92.5% fill factor. With the highest heat connection. The wire for a coil of 3 turns has a length of 237.5 mm. A coil like this can be replaced in minutes if something goes wrong. The same coil with the same winding resistance is of course even more electrically suitable with Multifilar wire due to lower eddy current, skin effects and proximity effects. We have received further new orders for electrically powered tanks. A few links to it. If I knew that a motor like this could be given a new winding in minutes using quick, prefabricated coils, that would really annoy me. But He doesn't want it any other way. And calluses on my hands from pulling the wires through the stator slots. He doesn't even use such a thick wire diameter, just Pipifax diameter.🤪

https://www.renk.com/de/produkte/fahrzeugantriebe/hybrid-loesungen

Happy Amps Christian

Taking it to another level I see. Really amazing e traction tech.

[Clugh]

Sep 14, 2024, 12:16 AM #444
powercroco Registered User	...
	Last edited by powercroco; Sep 20, 2024 at 11:27 AM.

Sep 14, 2024, 08:16 AM #445
GregG Speed Demon	Amazing sound, very quiet almost like a hushed EDF. Oh that sucks, never good to lose a plane like that! What size/brand cells are you using and how many cells?

Sep 19, 2024, 12:37 PM #446
powercroco Registered User	...
	Last edited by powercroco; Sep 20, 2024 at 11:26 AM

Now do you see!!!!! the battery type also has been deleted. Hobbyist will never get the real battery report because the battery isnt the issue the amp hog is.

[Clugh]

RC Groups - View Single Post - The Typhoon-series! Building of three new F3speedplanes for fun-speed-flying and comp

RC Groups - View Single Post - The Typhoon-series! Building of three new F3speedplanes for fun-speed-flying and comp

He already admitted the cells were SLS which are very good batteries you helped them to get their hands on aren't they Christian...

Tell the hobbyist the real scoop!!!!

[Clugh]

Der Russe hat über 20.000 Dollar bei ihnen ausgegeben und hat eine Tasche voller verbrannter und abgestürzter Flugzeuge. Und einen Strafzettel wegen zu schnellen Fahrens über 600 Dollar. 20.000 Dollar. Ich müsste schon ziemlich high auf Crack sein, um so etwas zu tun.

Die Hunde in diesem Tierheim leben verdammt gut.

[Clugh]

powercroco Registered User

AFAIK they used 10S. ("Speed" 5100mAh?) Nomally SLS. But I don't know, how old the cells have been and how good and if they have been warmed sufficiently. We already often have seen that one single bad cell in the pack can cause such problem. Same in plane or in helicopters just this yearand independent from ESC (Kontronik Kosmik, YGE 255HVT) or motor ( with Kontronik Pyro or X-Nova or Scorpion.

Also just not true. remember YOU recommended a dumm inverter as you call it that has no fail safes .

An agnostic inverter like the Komar constantly monitors current and source voltage and limits on its own to prevents the fail.

.

You try to erase this stuff but I already have it archived when you type it
U told the hobbyist that the "dumm" yge320 inverter that cant sense your saturation and limit itself is a plus.



Hubert

[Clugh]

and they can see from your Jazzy remote reposes how much you care about them versus a dog.

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