Weight: 305g
Total length (the shaft you exclude): 63.5mm
Diameter: 43mm
Shaft diameter: 5mm
KV: 1200RPM/V
Largest electric current: 50A
Recommendation amplifier standard: 80A

MAX EFFICIENNCY>80%
The surprise high performance, please try by all means

Brushless Motor outrunner
Color: purple
Motor weight: 40g
Motor length: 28mm
Motor diameter: 25.6mm
Shaft diameter: 2.3mm
KV: 3900RPM/V
Free load current: 2.0A
Max efficiency: 80%
Max current: 17A
Speed contorller requiement: 25A

Brushless Motor outrunner
Color: purple
Motor weight: 58g
Motor length: 30mm
Motor diameter: 27.7mm
Shaft diameter: 2.3mm
KV: 3800RPM/V
Free load curren: 2.0A
Max efficiency: 80%
Max current: 20A
Speed contorller requiement:25A

Brushless Motor outrunner
Color: purple
Motor weight: 40g
Motor length: 28mm
Motor diameter: 25.9mm
Shaft diameter: 2.3mm
KV: 3100RPM/V
Free load current:  2.5A
Max efficiency: 80%
Max current: 13A
Speed contorller requiement: 25A

400DH Brushless Outruner Motor (Works great with King 2)
The JustGoFly Outrunners are extremely popular because these motors are inexpensive and excellently efficient.  This is the motor of choice for your Zoom / Shogun helicopters.
This motor ships with a 2.3mm shaft for use with 2.3mm pinions.
Specifications:
Max Current: 20 Amps.
KV: 4400
Weight: 42.1 grams
Shaft Diameter: 2.3m
Mount holes: standard 16 & 19
3mm diameter, .5 pitch standard screws.

Specification:

• operating voltage : 7.4 ~ 14.8 V
• max continous current : 12 A
• max power : 200W (RMS)
• KV (RPM/V) : 1530KV
• dimensions : 31x46.50mm
• axle length : 23 mm
• axle diameter : 3mm
• weight : 54.5g

Arrowind 2010-200~400 Outrunner Brushless Motors
No. Of cells 3-4x Li-Poly
RPM/V 4050/5000 (KV=4050/5000)
Max. efficiency current 8 - 10.5 A (>75%)
No load current / 10 V 0,5 A
Max Power 300 Watts
Dimensions (diameter. x length)  25.5x25. 2 mm
Stator Dimensions 20x10 mm
Shaft diameter 2.3 mm
Weight 38 g
Design For 200~400 Class Helicopter
Recommend ESC Arrowind 35A (S) 
Perfect for Honey Bee King 2 and other 300 class helicopters

Arrowind 2215-450 with Fan
No. Of cells 3x Li-Poly
RPM/V 3700 (KV=3700)
Max. efficiency current 8 - 10.5 A (>75%)
No load current / 10 V 0,5 A
Max Power 504 Watts
Dimensions (diameter. x length)  28.5x34. 5 mm
Stator Dimensions 22x15 mm
Shaft diameter 3.17 mm
Weight 62 g
Design For 450 Class Helicopter
Recommend ESC Arrowind 35A (S)
Perfect for Belt CP and T-Rex 450 class helicopters

Arrowind 2832-500 with Fan
No. Of cells 4x Li-Poly
RPM/V 960 (KV=960)
Max. efficiency current 20 - 30 A (>78%)
No load current / 10 V 2,1 A
Max Power 720 Watts
Dimensions (diameter. x length) 39x55 mm
Stator  Dimensions 30x26 mm
Shaft diameter 5 mm
Weight 232 g
Design For 500 Class Helicopter
Recommend ESC Arrowind 60A (S)
Perfect for the T Rex 500 and other 500 size helicopters

Motor Arrowind    2836-08
KV (RPM/V) 4950
ESC 35A
Unload Current 3.1 A
MAX Current 32 A
resistance  30 mΩ
Arrowind 2836 Inrunner
No. Of cells 2-4 cell Li-Poly
Dimensions 28x36 mm
Shaft diameter 3.175 mm
Weight 66 g

Motor Arrowind    2846-10
KV (RPM/V) 3200
ESC 35A
Unload Current 1.4A
MAX Current 32A
resistance 28 mΩ
Arrowind 2846 Inrunner
No. Of cells 2-4 cell Li-Poly
Dimensions 28x46 mm
Shaft diameter 3.175 mm
Weight 130 g

400X Brushless motor (4000kv-20A) - King 2
Model: ESK007
Shipping Weight: 57 grams
Manufactured by: Xtreme Production
Specially designed for Esky King 2 or similar sized helicopters.
4000kv, 20 Amp current draw
Air Fan is included (can be removed if you like)
Round banana plug is pre-installed which fits perfectly with Esky speed controller
Max Current 20 amp
KV: 4000~4200
Size:25. 4mm diameter
Weight: 35g
Shaft Diameter: 2.3mm
Suitable: ESky King 2

Arrowind 2215-20    KV=1200

No. Of cells 2-3x Li-Poly
Max. efficiency 82%
No load current / 10 V 0,5 A
Current capacity 24 A/60s

Dimensions (diameter x length)  28.5x32.3 mm
Stator Dimensions 22x15mm
Shaft diameter 3 mm
Weight 59 g/2.08oz.
Recommended model weight 400-1100 g
Recommended prop without gearbox 8"-10"

Arrowind 2215-25    KV=950

No. Of cells 2-3x Li-Poly
Max. efficiency 82%
No load current / 10 V 0,5 A
Current capacity 16.5 A/60s

Dimensions (diameter. x length)  28.5x32.3 mm
Stator Dimensions 22x15mm
Shaft diameter 3 mm
Weight 59 g/2.08oz.
Recommended model weight 300-900 g
Recommended prop without gearbox 8"-10"

Arrowind 2210-30 KV=1300

No. Of cells 2-3x Li-Poly
RPM/V 1300
No load current / 10 V 0,5 A
Current capacity 16.5 A/60 s

Dimensions (diameter x length)  28.5x22.3 mm
Stator Dimensions 22x10 mm
Shaft diameter 3 mm
Weight 45 g
Recommended model weight 200 - 500 g
Recommended prop without gearbox 6"-8"

Arrowind 2210-25 KV=1560

No. Of cells 2-3x Li-Poly
RPM/V 1560
No load current / 10 V 0,5 A
Current capacity 15 A/60 s

Dimensions (diameter x length)  28.5x27.8 mm
Stator Dimensions 22x10 mm
Shaft diameter 3 mm
Weight 45 g
Recommended model weight 200 - 500 g
Recommended prop without gearbox 6"-8"

Arrowind 2205-22 KV=1650

No. Of cells 2x Li-Poly
RPM/V 1650
No load current / 10 V 0,5 A
Current capacity 11 A/60 s

Dimensions (diameter x length)  28.5x22.3 mm
Stator Dimensions 22x5 mm
Shaft diameter 3 mm
Weight 34 g
Recommended model weight 220 - 330 g
Recommended prop without gearbox 6"-8"

Arrowind 1812-11 KV=1800

No. Of cells 2-3x Li-Poly
RPM/V 1800
Current capacity 12.6 A/60 s

Dimensions (diameter x length)  23x24 mm
Stator Dimensions 18x12 mm
Shaft diameter 3 mm
Weight 28 g
Recommended model weight 300 g
Recommended prop without gearbox 6"-7"

Arrowind 1806-25 KV=1650

No. Of cells 2-3x Li-Poly
RPM/V 1650
Current capacity 10 A/60 s

Dimensions (diameter. x length)  23x18 mm
Stator Dimensions 18x6 mm
Shaft diameter 3 mm
Weight 18 g
Recommended model weight 200 g
Recommended prop without gearbox 6"-7"

Scorpion HK-3026 V2 Brushless Motor (1400KV) - Trex500 HK-3026-1400
The Scorpion HK-3026 motors have been developed for the newer 500 and 550 class electric helicopters that are becoming so popular. These motors are designed to provide all the power that you can use, while still maintaining excellent efficiency and cool running characteristics.
Scorpion HK Series Brushless Motors are built from the best materials available, and are designed to provide both quality and performance at an affordable price. Scorpion starts with high quality aluminum alloy parts that are produced on the latest CNC milling machines. These parts are then gold anodized to provide a beautiful, long-lasting finish. The stators are made with 0.2mm laminations to give maximum efficiency, and minimum Eddy current losses. The stators are epoxy coated to prevent shorts, and are wound with wire that is rated at 180 degrees C (356 F). The magnets used in Scorpion Motors are N-50EH style, which are rated for operation at 200 degrees C (392 F), making a motor that is virtually impossible to burn up in normal use.
All Scorpion HK-3026 series motors come with 3.5mm male Bullet style connectors already attached, and include a hardware package that contains 3 matching female Bullet connectors for your speed controller with matching heat shink tubing. Since the HK series motors are primarily designed for Helicopter and Ducted Fan use, they do not include a prop adapter. If you intend on running a prop on this motor, you will need to purchase a prop adapter for a 5mm shaft.
Scorpion Motors are built to last, and are backed with a 2-Year warranty against defects in materials or workmanship. For the best overall combination of quality, performance, and value, give Scorpion Motors a try!
Specifications
Stator Diameter ............................ 30.0 mm (1.181 in)
Stator Thickness ........................... 26.0 mm (1.024 in)
No. of Stator Arms ................................................ 12
No. of Magnet Poles .............................................. 10
Motor Wind ............................................ 6 Turn Delta
Motor Wire ..................... 24-Strand 0.25mm (30 AWG)
Motor Kv ........................................... 1400 RPM / Volt
No-Load Current (Io) ................... 3.86 Amps @ 6 volts
Motor Resistance (Rm) ............................. 0.010 Ohms
Max Continuous Current ............................... 80 Amps
Max Continuous Power .............................. 1680 Watts
Weight ....................................... 199 Grams (7.02 oz)
Outside Diameter .......................... 37.5 mm (1.476 in)
Shaft Diameter ............................. 5.00 mm (0.197 in)
Body Length ................................. 48.4 mm (1.906 in)
Overall Shaft Length ...................... 74.2 mm (2.921 in)
Scorpion HK-3026 V2 Brushless Motor (1400KV) - Trex500 HK-3026-1400

Scorpion HK-2221-10 V2 Brushless Motor (3000Kv) - T-REX 450/E325
Specifications
Stator Diameter ............................ 22.0 mm (0.866 in)
Stator Thickness ........................... 21.0 mm (0.827 in)
No. of Stator Arms ................................................. 9
No. of Magnet Poles ................................................ 6
Motor Wind ........................................... 10 Turn Delta
Motor Wire ...................... 13-Strand 0.21mm (31 AWG)
Motor Kv ........................................... 3000 RPM / Volt
No-Load Current (Io) ................. 1.79 Amps @ 10 volts
Motor Resistance (Rm) ............................. 0.031 Ohms
Max Continuous Current ............................... 42 Amps
Max Continuous Power ................................ 440 Watts
Weight .......................................... 79 Grams (2.79oz)
Outside Diameter .......................... 27.9 mm (1.097 in)
Shaft Diameter ............................. 3.17 mm (0.125 in)
Body Length ................................. 33.6 mm (1.323 in)
Overall Shaft Length ...................... 57.0 mm (2.244 in)

Scorpion HK-2221-6 V2 Brushless Motor (4400Kv) T-REX 450
Specifications
Stator Diameter: 22.0 mm (0.866 in)
Stator Thickness: 21.0 mm (0.827 in)
No. of Stator Arms: 9
No. of Magnet Poles: 6
Motor Wind: 6 Turn Delta
Motor Wire: 20-Strand 0.21mm (31 AWG)
Motor Kv: 4400 RPM / Volt
No-Load Current (Io): 2.89 Amps @ 10 volts
Motor Resistance (Rm): 0.016 Ohms
Max Continuous Current: 52 Amps
Max Continuous Power: 525 Watts
Weight: 79 Grams (2.79oz)
Outside Diameter: 27.9 mm (1.097 in)
Shaft Diameter: 3.17 mm (0.125 in)
Body Length: 33.6 mm (1.323 in)
Overall Shaft Length: 57.0 mm (2.244 in)

Scorpion HK-2206-3900 Brushless Motor 3S (3900KV)- Trex 250
Specifications
Stator Diameter ............................ 22.0 mm (0.866 in)
Stator Thickness ............................. 6.0 mm (0.236 in)
No. of Stator Arms .................................................. 9
No. of Magnet Poles ................................................ 6
Motor Wind ........................................... 24 Turn Delta
Motor Wire ....................... 7-Strand 0.19mm (32 AWG)
Motor Kv ........................................... 3900 RPM / Volt
No-Load Current (Io) ................... 0.83 Amps @ 6 volts
Motor Resistance (Rm) ............................. 0.064 Ohms
Max Continuous Current ............................... 14 Amps
Max Continuous Power ................................ 150 Watts
Weight ......................................... 32 Grams (1.12 oz)
Outside Diameter .......................... 27.9 mm (1.097 in)
Shaft Diameter ............................. 2.50 mm (0.098 in)
Body Length ................................. 22.6 mm (0.890 in)
Overall Shaft Length ...................... 32.6 mm (1.283 in)