Ghost RC American Speed

Here are some more options for high-efficiency motors from America. Castle has launched the Ghost RC American Speed line, offering a full range of full-pitch 4-pole inrunners capable of reaching 90,000 RPM. These motors can also be used for speed planes when paired with planetary gearboxes.

They have also released 2 more high voltage drive for surface and marine that far outperform the antiquated 14 Kw drives widely used in the sport in that lack high pwm frequency capability

Poor Gotha....

Wye to Delta serially connected hybrid winds.

A serially connected hybrid wye–delta BLDC machine combines the strengths of both winding configurations, offering higher torque at low speeds (from wye) and higher power/speed capability (from delta), while also improving efficiency, reducing copper losses, and enabling flexible performance tuning across operating ranges.

⚡ Advantages of Hybrid Wye–Delta BLDC Machines

1. Torque and Speed Flexibility

• Wye (Y) connection provides higher torque at lower speeds because each phase sees the full line-to-neutral voltage, resulting in stronger electromagnetic force.

• Delta (Δ) connection allows higher speed operation since each winding experiences line-to-line voltage, giving more power output at high RPM.

• A hybrid serial connection lets the motor switch or blend characteristics, optimizing performance across different operating conditions.

2. Improved Efficiency

• Wye configuration reduces copper losses at low speeds due to lower current per winding.

• Delta configuration minimizes voltage stress and improves efficiency at high speeds.

• The hybrid approach balances these effects, leading to better overall energy efficiency across the full operating range.

3. Thermal Management

• Wye winding tends to run cooler at low speeds because of reduced current.

• Delta winding spreads current differently, reducing localized heating at higher speeds.

• Hybrid connection helps distribute thermal load more evenly, improving reliability and lifespan.

4. Power Density and Performance

• Delta connection supports higher power density and faster response.

• Wye connection supports stable torque output and smoother operation.

• Together, the hybrid design achieves both high torque and high speed capability, which is difficult with a single configuration.

5. Application Versatility

• Hybrid BLDC machines are well-suited for applications requiring wide speed ranges and variable load conditions, such as:

  • Electric vehicles (EVs)

  • Robotics

  • Industrial automation

  • Drones and RC systems

This is a parallel wye-to-delta serially connected hybrid I wound for running verification. I’m pretty sure it’s the only parallel version of a serially connected hybrid external rotor BLDC in the world. It’s definitely the only hybrid-wound hobby machine you’ll see that actually runs. Plenty of wild and baseless claims have been made on various hobby forums, but none of them include recorded motor constants, proper execution and winding termination, and a video of it in action.

Here it is actually running. It is a super quiet machine. A hybrid configuration is a version of dual 3 phase which has a higher winding factor than a conventional delta or wye 12 slot 10 pole machine with a very low idle current for a 650 class motor over 1000Kv confirming lower ac losses.

New kids on the block.

Unlike the outdated topologies and windings once used in the GDR, here at Clugh we embrace the latest winding technology. XNOVA’s newest releases feature full-pitch windings, and while their reported use of 0.15mm laminations is impressive for those behind the design curve in the hobby industry, Egodrift leads the way as the first to introduce 0.1mm laminations in their Eclipse series. Experience the most advanced winding technologies in today’s high-end hobby machines at Clugh.

NEW! 40XX Lightning xnova rc helicopter motors | XNOVA MOTORS

The XNOVA 8 pole full pitch wound Lightning series brings these advantages over the antiquated 10 pole windings thermally insulated with UHU construction epoxy you see burning up constantly in Thungaria! Here are those results!

Full-pitch motor winding provides stronger EMF, higher torque, and improved efficiency compared to fractional-pitch designs. It is often chosen for high-performance applications where maximum voltage and smooth operation are critical.

⚡ Key Benefits of Full-Pitch Motor Winding

• Maximum Electromotive Force (EMF):   Since the co

  il sides are placed exactly 180 electrical degrees apart, they align with opposite magnetic poles. This produces the strongest possible induced voltage in the winding.

• Improved Torque Output:   The stronger EMF translates into higher torque generation, making full-pitch winding ideal for motors that need robust mechanical performance.

• Higher Energy Efficiency:   By capturing the maximum flux linkage, full-pitch windings reduce electrical losses and improve overall efficiency.

• Smooth Operation:   The balanced coil placement minimizes harmonic distortion, resulting in smoother motor performance and reduced vibration.

• Better Voltage Utilization:   Full-pitch windings deliver maximum voltage per coil turn, which is especially beneficial in applications requiring consistent and reliable power.

• Applications in High-Performance Systems:   Commonly used in electric vehicles, aerospace equipment, and industrial motors, where reliability and efficiency are paramount.

• Full-pitch winding is chosen when maximum voltage, torque, and smooth performance are critical.

• Fractional-pitch winding is preferred when cost, reduced copper losses, or compact design matter more.

👉 Think of it this way: full-pitch is about power and performance, fractional-pitch is about economy and practicality.

EGODRIFT Tengu & Scale Collection Eclipse Series motor options | egodrift.com

The Egodrift Eclipse series utilizes .1mm laminations. Factory pilots at egodrift report almost a 40% decrease in load amperages with the superior core. Thinner laminations in a motor core reduce energy losses, improve efficiency, and enable higher performance, especially in high-speed or high-frequency applications.

• Reduced Eddy Current Losses

  • Eddy currents are loops of electrical current induced in the core by alternating magnetic fields.

  • Thinner laminations, insulated from each other, restrict the path of these currents, significantly lowering heat generation and wasted energy.

• Lower Hysteresis Losses

  • Each magnetic cycle causes energy loss due to the core material’s magnetization and demagnetization.

  • Using thinner, high-quality electrical steel laminations reduces hysteresis losses, improving efficiency.

• Improved Efficiency & Power Density

  • Less heat loss means more of the input energy is converted into useful mechanical work.

  • This boosts power density (more power per unit weight/volume), which is critical in electric vehicles, aerospace, and compact industrial motors.

• Better High-Frequency Performance

  • Modern drives often operate at higher switching frequencies (thanks to SiC and GaN electronics).

  • Thinner laminations handle these frequencies more effectively, maintaining efficiency and torque density.

• Enhanced Continuous Power Capability

  • Reduced losses allow motors to sustain higher output without overheating, improving reliability and lifespan.

  For high-speed, high performance external rotors, this is the latest tech. These new motors are far more efficient and powerful that anything produced by amateur winders in the GDR. You can find custom full-pitch wound Xnovas at Clugh, along with the 0.1mm Egodrift Eclipse series. We offer multiple winding options beyond the conventional WYE or DELTA wound machines, using superior material to rebuild your motor without cutting corners for cost. I'll post a build review of these engines on Hobby Squawk in January: until then, the Powercroco minions can enjoy 68% eta's and all the scorched wunderbar coming out of Thungaria!!
  

  

The latest high end hobby external rotor BLDC motors you can have custom wound at Clugh perform nothing like the reactive power drama queens you'll find in Gotha Germany! They run much cooler and make more torque.