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Nov 23, 2015, 05:31 PM
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Substitute motor: 2217/8 2300KV- OR GT2210/09 1780KV

I am looking for a Cobra Motor 2217/8 2300KV motor or its substitute.

Cobra Motor 2217/8 2300KV

Cobra 2217-8 Motor Specifications

Stator Diameter 22.0 mm (0.866 in)
Stator Thickness 17.0 mm (0.669 in)
Number of Stator Slots 12
Number of Magnet Poles 14
Motor Wind 8 Turn Delta
Motor Kv Value 2300 RPM per Volt
No Load Current (Io) 2.10 Amps @ 8 Volts
Motor Resistance (Rm) per Phase 0.042 Ohms
Motor Resistance (Rm) Phase to Phase 0.028 Ohms
Maximum Continuous Current 40 Amps
Max Continuous Power (2-cell Li-Po) 300 Watts
Max Continuous Power (3-cell Li-Po) 440 Watts
Motor Weight 74.0 grams (2.61 oz.)
Outside Diameter 27.7 mm (1.091 in.)
Shaft Diameter 3.17 mm (0.125 in.)
Motor Body Length 33.0 mm (1.299 in.)
Overall Shaft Length 47.0 mm (1.850 in.)
Motor Timing 5-10 degrees
PWM Frequency 8 KHz

EMAX GT Series Motor GT2210/09 1780KV

Type: GT2210/09 - KV 1780
Cells: 2X or 3X Li-Poly
RPM/V: 1780 RMP/V
Weight: 55g
Dimension: 28.5mm (Dia) x 28.5mm (Length)
Shaft diameter: 4 mm
Max thrust: 800g
Recommended prop: 7x5 8x4

Please also let me know what would be best replacement for this motor.

Thank you
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Nov 24, 2015, 12:06 PM
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manuel v's Avatar
Fore cobra motor, you can use a Suppo 2217-4 2200 Kv.
Nov 24, 2015, 01:28 PM
homo ludens modellisticus
Ron van Sommeren's Avatar
Motor(s) for what plane?
What battery voltages do you have available as packs?

Going for Kv =1780rpm/volt to Kv = 2300rmp/volt motorcurrent wants to increase by factor (2300/1780) = 2.4!!!

Vriendelijke groeten Ron
Nov 24, 2015, 01:54 PM
Registered User
Thread OP
I am looking for a motor for VAS sport plane
Nov 24, 2015, 03:25 PM
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manuel v's Avatar
Them suppo 2212-6, 3s2200 max lipo, apce 6x4.

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