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Cobra
C2213/12 Motor Propeller Data |
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Motor Wind |
Motor Kv |
No-Load Current |
Motor Resistance |
I Max |
P Max (3S) |
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12-Turn
Delta |
2000 RPM/Volt |
Io = 1.20 Amps @ 8v |
Rm = 0.040 Ohms |
30 Amps |
330 W |
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Outside
Diameter |
Body Length |
Total Shaft Length |
Shaft Diameter |
Motor Weight |
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27.7
mm, 1.09 in. |
28.0 mm, 1.10 in. |
42.0 mm, 1.65 in. |
3.17 mm, 0.125 in. |
60.0 gm, 2.11 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-E |
7.4 |
14.86 |
110.0 |
12,060 |
45.7 |
586 |
20.67 |
5.33 |
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APC |
7x5-E |
7.4 |
18.51 |
137.0 |
11,460 |
54.3 |
591 |
20.85 |
4.31 |
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APC |
7x6-E |
7.4 |
19.43 |
143.8 |
11,310 |
64.3 |
636 |
22.43 |
4.42 |
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APC |
8x4-E |
7.4 |
21.21 |
157.0 |
11,030 |
41.8 |
782 |
27.58 |
4.98 |
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APC |
8x6-E |
7.4 |
28.57 |
211.4 |
9,780 |
55.6 |
820 |
28.92 |
3.88 |
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APC |
9x4.5-E |
7.4 |
27.58 |
204.1 |
9,920 |
42.3 |
995 |
35.10 |
4.88 |
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APC |
9x6-E |
7.4 |
30.58 |
226.3 |
9,480 |
53.9 |
949 |
33.47 |
4.19 |
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GWS |
7x3.5-DD |
7.4 |
9.13 |
67.6 |
13,030 |
43.2 |
438 |
15.45 |
6.48 |
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GWS |
7x3.5x3-DD |
7.4 |
11.55 |
85.5 |
12,620 |
41.8 |
502 |
17.71 |
5.87 |
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GWS |
8x4-DD |
7.4 |
17.01 |
125.9 |
11,730 |
44.4 |
730 |
25.75 |
5.80 |
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GWS |
8x4x3-DD |
7.4 |
20.54 |
152.0 |
11,170 |
42.3 |
802 |
28.29 |
5.28 |
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GWS |
9x5-DD |
7.4 |
26.95 |
199.4 |
10,100 |
47.8 |
1010 |
35.63 |
5.06 |
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GWS |
9x5x3-DD |
7.4 |
31.99 |
236.7 |
9,280 |
43.9 |
1041 |
36.72 |
4.40 |
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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 |
5x5-E |
11.1 |
14.17 |
157.3 |
18,910 |
89.5 |
359 |
12.66 |
2.28 |
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APC |
5.25x4.75-E |
11.1 |
15.97 |
177.3 |
18,550 |
83.4 |
507 |
17.88 |
2.86 |
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APC |
5.5x4.5-E |
11.1 |
16.59 |
184.1 |
18,420 |
78.5 |
519 |
18.31 |
2.82 |
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APC |
6x4-E |
11.1 |
18.48 |
205.1 |
18,060 |
68.4 |
697 |
24.59 |
3.40 |
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APC |
6x5.5-E |
11.1 |
23.03 |
255.6 |
17,170 |
89.4 |
658 |
23.21 |
2.57 |
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APC |
7x4-E |
11.1 |
28.18 |
312.8 |
16,170 |
61.3 |
1135 |
40.04 |
3.63 |
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APC |
7x5-E |
11.1 |
33.31 |
369.7 |
15,100 |
71.5 |
1063 |
37.50 |
2.87 |
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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 |
4.1x4.1-E |
14.8 |
11.72 |
173.5 |
26,430 |
106.4 |
395 |
13.93 |
2.28 |
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APC |
4.7x4.25-E |
14.8 |
17.85 |
264.2 |
24,900 |
100.2 |
560 |
19.75 |
2.12 |
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APC |
4.75x4.75-E |
14.8 |
19.94 |
295.1 |
24,460 |
110.0 |
552 |
19.47 |
1.87 |
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APC |
4.75x5.5-E |
14.8 |
21.89 |
324.0 |
23,970 |
124.8 |
517 |
18.24 |
1.60 |
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APC |
5x5-E |
14.8 |
22.42 |
331.8 |
23,830 |
112.8 |
581 |
20.49 |
1.75 |
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APC |
5.25x4.75-E |
14.8 |
25.58 |
378.6 |
23,120 |
104.0 |
788 |
27.80 |
2.08 |
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APC |
5.5x4.5-E |
14.8 |
26.08 |
386.0 |
22,990 |
98.0 |
818 |
28.85 |
2.12 |
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APC |
6x4-E |
14.8 |
29.14 |
431.2 |
22,300 |
84.5 |
1084 |
38.24 |
2.51 |
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APC |
6x5.5-E |
14.8 |
34.63 |
512.5 |
20,970 |
109.2 |
985 |
34.74 |
1.92 |
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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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