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Cobra
C2202/70 Motor Propeller Data |
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Motor Wind |
Motor Kv |
No-Load Current |
Motor Resistance |
I Max |
P Max (2S) |
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70-Turn Delta |
1530 RPM/Volt |
Io = 0.25 Amps @ 8v |
Rm = 0.336 Ohms |
6 Amps |
45 W |
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Outside
Diameter |
Body Length |
Total Shaft Length |
Shaft Diameter |
Motor Weight |
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26.8 mm, 1.06 in. |
10.4mm, 0.41 in. |
18.6 mm, 0.73 in. |
3.0 mm, 0.118 in. |
15.0 gm, 0.53 oz |
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Prop |
Prop |
Input |
Motor |
Watts |
Prop |
Pitch |
Thrust |
Thrust |
Thrust Eff. |
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Manf. |
Size |
Voltage |
Amps |
Input |
RPM |
Speed |
Grams |
Ounces |
Grams/W |
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APC |
7x4-SF |
7.4 |
4.37 |
32.3 |
7,560 |
28.6 |
227 |
8.01 |
7.02 |
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APC |
7x5-SF |
7.4 |
4.89 |
36.2 |
7,070 |
33.5 |
226 |
7.97 |
6.25 |
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APC |
7x6-SF |
7.4 |
5.57 |
41.2 |
6,470 |
36.8 |
210 |
7.41 |
5.09 |
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APC |
8x3.8-SF |
7.4 |
5.79 |
42.8 |
6,300 |
22.7 |
279 |
9.84 |
6.51 |
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GWS |
7x3.5-DD |
7.4 |
3.04 |
22.5 |
8,730 |
28.9 |
181 |
6.38 |
8.05 |
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GWS |
8x4-DD |
7.4 |
4.87 |
36.0 |
7,210 |
27.3 |
266 |
9.38 |
7.38 |
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GWS |
8x4.3-SF |
7.4 |
5.94 |
44.0 |
6,160 |
25.1 |
275 |
9.70 |
6.26 |
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GWS |
8x6-SF |
7.4 |
6.70 |
49.6 |
5,450 |
31.0 |
263 |
9.28 |
5.30 |
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GWS |
9x5-DD |
7.4 |
6.51 |
48.2 |
5,600 |
26.5 |
298 |
10.51 |
6.19 |
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Propeller Chart Color Code Explanation |
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The prop is to small to get good performance
from the motor. (Less than 50% power) |
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The prop is sized right to get good power
from the motor. (50 to 80% power) |
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The prop can be used, but full throttle
should be kept to short bursts. (80 to 100% power) |
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The prop is too big for the motor and should
not be used. (Over 100% power) |
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PLEASE
NOTE: |
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The
data contained in this prop chart is based on actual measurements taken in a
controlled test |
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environment. The test voltages used are based on a
properly sized Li-Po battery for the current |
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draw of the motor being
tested. If you are using a larger than
normal capacity battery, or a very |
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high C-Rated battery,
your actual voltages will be higher than those shown in this chart, and this |
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will result in higer
current draw for each prop used. You
should always test your power system |
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with a watt meter
whenever a prop is used to ensure that you are not exceeding the recommended |
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rating of the motor
being used. The prop recommendations
in this chart are based on the motor |
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receiving adequate
cooling throughout its operation. If
your motor is being used inside a cowl, you |
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must provide adequate
cooling to the motor and make sure that the motor is not getting too hot |
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during operation. |
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