Neu 1509/1D fat motor wires

[sikeston34m]

Let me clarify just a little more.

For example, here's the specs on a Scorpion HK-4020 1390kv outrunner motor.

Specifications

Stator Diameter ............................ 40.0 mm (1.575 in)
Stator Thickness ........................... 20.0 mm (0.787 in)
No. of Stator Arms ................................................ 12
No. of Magnet Poles ................................................ 8

Motor Wind ............................................. 6 Turn Delta
Motor Wire ..................... 28-Strand 0.29mm (29 AWG)

Motor Kv ........................................... 1390 RPM / Volt
No-Load Current (Io) ................. 3.45 Amps @ 10 volts
Motor Resistance (Rm) ............................. 0.007 Ohms
Max Continuous Current ............................... 90 Amps
Max Continuous Power .............................. 1890 Watts
Weight ...................................... 284 Grams (10.01 oz)
Outside Diameter .......................... 48.9 mm (1.925 in)
Shaft Diameter ............................. 4.98 mm (0.196 in)
Body Length ................................. 46.5 mm (1.831 in)
Overall Shaft Length ...................... 78.8 mm (3.102 in)

It is a 6 turn Delta wind using 28 strands of 29 AWG wire. This is the amount of wire required for maximum fill of the stator arms. The same principle applies when filling a Neu Motor winding. The arms are just reversed being an inrunner.

Now, let's look at a Scorpion HK-4020 910kv outrunner motor.

Same Motor, just a different wind.

Specifications

Stator Diameter ............................ 40.0 mm (1.575 in)
Stator Thickness ........................... 20.0 mm (0.787 in)
No. of Stator Arms ................................................ 12
No. of Magnet Poles ................................................ 8

Motor Wind ........................................... 10 Turn Delta
Motor Wire ..................... 24-Strand 0.25mm (30 AWG)

Motor Kv ............................................. 910 RPM / Volt
No-Load Current (Io) ................. 1.95 Amps @ 10 volts
Motor Resistance (Rm) ............................. 0.015 Ohms
Max Continuous Current ............................... 65 Amps
Max Continuous Power .............................. 1820 Watts
Weight ...................................... 284 Grams (10.01 oz)
Outside Diameter .......................... 48.9 mm (1.925 in)
Shaft Diameter ............................. 4.98 mm (0.196 in)
Body Length ................................. 46.5 mm (1.831 in)
Overall Shaft Length ...................... 78.8 mm (3.102 in)

This wind is a 10 turn Delta using 24 strands of 30 AWG.

Look at the differences.

KV went from 1390 to 910.
No-Load current went from 3.45amps to 1.9 amps
Resistence of the wind has changed.

Scorpion outrunners do splice super flex wire onto the winding inside the case. Neu Motors do not.

Less turns = more strands = same copper fill
More turns = fewer strands = same copper fill

This information was pulled from http://www.innov8tivedesigns.com/pro...roducts_id=388

Many thanks to Lucien.