Brushless Speed
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 ALMOST READY TO RUN RC BRUSHLESS SPEED BOAT ARTR US $219.95 |
 Associated iX8 1 8 Brushless Speed Control ASCLRP80880  US $213.85
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 LRP LRP80880 iX8 1 8 Brushless Speed Control US $209.99
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 NEW Associated LRP 1 8 iX8 Brushless Speed Control LRP80880 NIB US $189.99
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 LRP 80880 iX8 Brushless Speed Control NIB 18 US $188.88
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 Viper R C VTX10R Sensored Brushless ESC SPEED CONTROL US $187.95
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 JR MP80G Brushless Ultra Speed Tail Rotor Sx 48V JRPSMP80G US $182.07
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 JR MP80G Brushless Ultra Speed Tail Rotor Sx 48V US $179.99
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 JR MP80G Brushless Ultra Speed Tail Rotor Sx 48V US $179.99
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 Savox SB 2272MG Lightning Speed Brushless Metal Gear Digital Servo US $139.99
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how to determine the max speed of brushless motors?
how to determine the max speed of brushless motors from the data given like
BMA2217K-6
1500KV
70g
Ф27.5mm*30mm
Ф4.0mm*49mm 2-3
Lipo 1.0 A 5 -16 A
The 1500KV means 1500rpm per volt.
So multiply the voltage of your controller (battery = 7.2v?) by the KV value and you will have an approximate no-load speed of 1500x7.2 = 10,800rpm.
There are quite a few other factors to take into account, but this will give you a starting point.
NB: LiPO (lithium polymer) will be around 3.7v per cell, so depending you may need to recalculate if you use LiPO (1cell = 5,500 rpm, 2 cells = 11,000 rpm).
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