Use these recommendations as a practical starting point for choosing the right EGODRIFT motor family, Kv version, and setup direction for your aircraft.
3D Helicopter
700-800 Class
Built around the world’s first 0.1 mm lamination EGODRIFT custom stator, the Tengu 4730EC Eclipse is our flagship model for serious 700 to 800 size performance builds.
Recommended Motor
Tengu 4730EC Eclipse
Common Kv combinations:
520Kv for 12S low-headspeed
540Kv for 12S regular 3D
570Kv for 12S aggressive 3D flight
410Kv for 800 size / 14S setups
Looking to build extra light?
If the primary goal of your build is to reduce model weight as far as possible, or if your flying style is more precision-oriented, the Tengu 4726EC Eclipse gives you the revolutionary 0.1 mm EGODRIFT custom stator in a more compact form factor.
Designed around our custom 42 mm stator platform, the Tengu 4230EC Eclipse is our choice for hardcore 600 size builds and modern light to ultralight 700 size models.
Recommended motor
Tengu 4230EC Eclipse
Common Kv combinations:
• 1070Kv for 6S • 800Kv for 8S • 550Kv for 12S
We recommend 8S or more
If the model allows it, 8S or 12S will usually give you a more efficient, more confident, and more enjoyable setup than 6S.
While they look similar to their predecessors at first glance, the Tengu 4030EC Eclipse motors have been completely redesigned around our 40 mm custom stator platform.
Recommended motor
Tengu 4030EC Eclipse
Common Kv combinations:
• 1050Kv for 6S setups • 800Kv for 8S setups • 560Kv for 12S setups
580 sized helicopters
Because 580 size helicopters, such as the SAB Kraken 580 and Raw 580, can run up to 610 mm blades, we recommend using at least 8S and choosing your motor based on the primary blade size you will be running.
Use these recommendations as a practical starting point for choosing the best EGODRIFT motor family for your aircraft.
Scale Helicopter
500-700 size
For smaller and mid-size scale builds based on common 500 to 700 size mechanics, the goal is usually a smooth, efficient setup with enough torque for the lower headspeeds typically used in scale flying.
Recommended motors
Tengu 4025EC/4030EC Eclipse
Choose the motor size based on your mechanics, available space, model weight, and target headspeed.
Common setup direction:
Tengu 4025EC Eclipse for lighter 500 to 600 size scale builds
Tengu 4030EC Eclipse for larger or heavier 600 to 700 size scale builds
Choose Kv based on gearing, cell count, and desired scale headspeed
Scale setup advice
Scale helicopters usually do not need extreme headspeed. A lower Kv version with suitable gearing will often give you the smoother, cooler, and more efficient setup.
For most 700 to 800 size scale helicopter builds, the Scale Collection 4230EC Eclipse is our main recommendation. It combines the torque and efficiency of our 42 mm custom stator platform with the cool and relaxed operation scale pilots are looking for. Fully HSM-800 ready.
Recommended motor
Scale Collection 4230EC
Our main recommendation for most 700 to 800 size scale builds.
Common setup direction:
Ideal for 12S scale setups
Excellent choice for large fuselage models
Especially suitable where cool operation, long flight times, and smooth power delivery matter more than peak 3D performance
Why this size works so well
The 4230EC sits in the sweet spot for many large scale builds: enough motor to keep the system relaxed, without adding unnecessary weight where it is not needed.
For very large scale helicopters, heavy fuselages, multi-blade heads, or models that simply need more torque, we recommend stepping up to the Tengu 4730EC Eclipse or, for heavy duty applications, the Tengu 5040HS.
Recommended motors
Tengu 4730EC / Tengu 5040HS
Choose based on model weight, rotor system, mechanics, and available installation space.
Common setup direction:
Tengu 4730EC Eclipse for large and heavy scale builds.
8×55 mm shaft option available for suitable installations
Tengu 5040HS for very large models where maximum torque reserve is required
When to step up
If the model is heavy, runs a large multi-blade rotor head, or needs a long shaft installation, moving up from the 4230EC can give the drivetrain the extra reserve it needs.
Use these recommendations as a practical starting point for choosing the right EGODRIFT motor family, Kv version, and setup direction for your F3A aircraft.
F3A Fixed Wing
Single and contra drive motors
Many of the world’s best pilots and drive designers rely on the performance of our motors for their drives and ready-built, tested combos. If you would like to upgrade your existing drive with one of our motors, please refer to your drive manufacturer’s recommendations for the best Kv and propeller combinations.
