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Cobra
C3525/12 Motor Propeller Data |
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Motor Wind |
Motor Kv |
No-Load Current |
Motor Resistance |
I Max |
P Max (5S) |
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12-Turn Delta |
650 RPM/Volt |
Io = 1.48 Amps @ 20v |
Rm = 0.030 Ohms |
52 Amps |
960 W |
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Outside
Diameter |
Body Length |
Total Shaft Length |
Shaft Diameter |
Motor Weight |
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43.0 mm, 1.69 in. |
51.0 mm, 2.01 in. |
73.0 mm, 2.87 in. |
5.00 mm, 0.197 in. |
253 gm, 8.92 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 |
11x8.5-E |
14.8 |
24.71 |
365.7 |
8,072 |
65.0 |
1649 |
58.17 |
4.51 |
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APC |
11x10-E |
14.8 |
29.02 |
429.5 |
7,848 |
74.3 |
1498 |
52.84 |
3.49 |
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APC |
12x6-E |
14.8 |
23.25 |
344.1 |
8,160 |
46.4 |
1944 |
68.57 |
5.65 |
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APC |
12x8-E |
14.8 |
29.09 |
430.5 |
7,857 |
59.5 |
1786 |
63.00 |
4.15 |
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APC |
12x10-E |
14.8 |
33.96 |
502.6 |
7,535 |
71.4 |
1901 |
67.06 |
3.78 |
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APC |
12x12-E |
14.8 |
38.87 |
575.3 |
7,342 |
83.4 |
1746 |
61.59 |
3.03 |
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APC |
13x6.5-E |
14.8 |
32.09 |
475.0 |
7,689 |
47.3 |
2447 |
86.31 |
5.15 |
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APC |
13x8-E |
14.8 |
34.45 |
509.8 |
7,569 |
57.3 |
2401 |
84.69 |
4.71 |
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APC |
13x10-E |
14.8 |
45.26 |
669.9 |
7,081 |
67.1 |
2201 |
77.64 |
3.29 |
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APC |
14x7-E |
14.8 |
38.48 |
569.5 |
7,317 |
48.5 |
2800 |
98.77 |
4.92 |
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APC |
14x8.5-E |
14.8 |
41.01 |
606.9 |
7,282 |
58.6 |
2928 |
103.28 |
4.82 |
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APC |
14x10-E |
14.8 |
40.95 |
606.1 |
7,294 |
69.1 |
2850 |
100.53 |
4.70 |
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APC |
14x12-E |
14.8 |
57.03 |
844.0 |
6,552 |
74.5 |
2271 |
80.11 |
2.69 |
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APC |
15x4-E |
14.8 |
31.55 |
466.9 |
7,718 |
29.2 |
2829 |
99.79 |
6.06 |
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APC |
15x6-E |
14.8 |
40.99 |
606.7 |
7,281 |
41.4 |
3208 |
113.16 |
5.29 |
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APC |
15x8-E |
14.8 |
42.84 |
634.0 |
7,193 |
54.5 |
3145 |
110.94 |
4.96 |
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APC |
15x10-E |
14.8 |
60.39 |
893.8 |
6,592 |
62.4 |
3308 |
116.69 |
3.70 |
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APC |
16x8-E |
14.8 |
63.91 |
945.9 |
6,452 |
48.9 |
3794 |
133.83 |
4.01 |
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MAS |
12x6x3 |
14.8 |
25.62 |
379.2 |
8,032 |
45.6 |
2062 |
72.73 |
5.44 |
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MAS |
12x8x3 |
14.8 |
34.98 |
517.7 |
7,503 |
56.8 |
2551 |
89.98 |
4.93 |
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MAS |
13x8x3 |
14.8 |
38.68 |
572.4 |
7,388 |
56.0 |
2808 |
99.05 |
4.91 |
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MAS |
14x7x3 |
14.8 |
44.12 |
653.0 |
7,064 |
46.8 |
3202 |
112.95 |
4.90 |
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MAS |
14x9x3 |
14.8 |
51.68 |
764.8 |
6,776 |
57.8 |
3492 |
123.18 |
4.57 |
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MAS |
15x7x3 |
14.8 |
53.60 |
793.3 |
6,668 |
44.2 |
3728 |
131.50 |
4.70 |
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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 |
10x10-E |
18.5 |
34.78 |
643.4 |
9,557 |
90.5 |
1590 |
56.09 |
2.47 |
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APC |
11x5.5-E |
18.5 |
25.50 |
471.7 |
10,045 |
52.3 |
2229 |
78.62 |
4.73 |
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APC |
11x7-E |
18.5 |
30.95 |
572.6 |
9,782 |
64.8 |
2375 |
83.77 |
4.15 |
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APC |
11x8-E |
18.5 |
33.66 |
622.7 |
9,648 |
73.1 |
2257 |
79.61 |
3.62 |
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APC |
11x8.5-E |
18.5 |
36.36 |
672.6 |
9,551 |
76.9 |
2312 |
81.55 |
3.44 |
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APC |
11x10-E |
18.5 |
41.07 |
759.8 |
9,247 |
87.6 |
2094 |
73.86 |
2.76 |
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APC |
12x6-E |
18.5 |
34.57 |
639.6 |
9,637 |
54.8 |
2865 |
101.06 |
4.48 |
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APC |
12x8-E |
18.5 |
41.72 |
771.7 |
9,273 |
70.3 |
2545 |
89.77 |
3.30 |
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APC |
12x10-E |
18.5 |
49.49 |
915.6 |
8,795 |
83.3 |
2602 |
91.78 |
2.84 |
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APC |
12x12-E |
18.5 |
53.63 |
992.1 |
8,664 |
98.5 |
2431 |
85.75 |
2.45 |
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APC |
13x4-E |
18.5 |
29.03 |
537.1 |
9,844 |
37.3 |
2785 |
98.24 |
5.19 |
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APC |
13x6.5-E |
18.5 |
47.01 |
869.7 |
9,012 |
55.5 |
3430 |
120.99 |
3.94 |
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APC |
13x8-E |
18.5 |
49.71 |
919.6 |
8,849 |
67.0 |
3295 |
116.23 |
3.58 |
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APC |
14x7-E |
18.5 |
56.67 |
1048.5 |
8,451 |
56.0 |
3797 |
133.93 |
3.62 |
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APC |
15x4-E |
18.5 |
46.53 |
860.8 |
9,029 |
34.2 |
4129 |
145.64 |
4.80 |
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MAS |
10x5x3 |
18.5 |
18.27 |
338.0 |
10,597 |
50.2 |
1718 |
60.60 |
5.08 |
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MAS |
10x7x3 |
18.5 |
26.62 |
492.4 |
10,064 |
66.7 |
2179 |
76.86 |
4.43 |
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MAS |
11x7x3 |
18.5 |
32.34 |
598.3 |
9,711 |
64.4 |
2575 |
90.83 |
4.30 |
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MAS |
11x8x3 |
18.5 |
35.14 |
650.1 |
9,580 |
72.6 |
2644 |
93.26 |
4.07 |
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MAS |
12x6x3 |
18.5 |
36.17 |
669.2 |
9,509 |
54.0 |
2935 |
103.53 |
4.39 |
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MAS |
12x8x3 |
18.5 |
49.25 |
911.2 |
8,871 |
67.2 |
3619 |
127.66 |
3.97 |
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MAS |
13x8x3 |
18.5 |
53.80 |
995.4 |
8,664 |
65.6 |
3913 |
138.03 |
3.93 |
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MAS |
14x7x3 |
18.5 |
61.07 |
1129.8 |
8,277 |
54.9 |
4437 |
156.51 |
3.93 |
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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 |
9x6-E |
22.2 |
20.53 |
455.7 |
12,610 |
71.6 |
1709 |
60.28 |
3.75 |
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APC |
9x7.5-E |
22.2 |
32.30 |
717.1 |
11,849 |
84.2 |
1828 |
64.48 |
2.55 |
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APC |
9x9-E |
22.2 |
35.62 |
790.7 |
11,673 |
99.5 |
1868 |
65.89 |
2.36 |
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APC |
10x5-E |
22.2 |
25.00 |
554.9 |
12,303 |
58.3 |
2173 |
76.65 |
3.92 |
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APC |
10x6-E |
22.2 |
27.92 |
619.8 |
12,110 |
68.8 |
2220 |
78.31 |
3.58 |
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APC |
10x7-E |
22.2 |
32.84 |
729.0 |
11,816 |
78.3 |
2363 |
83.35 |
3.24 |
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APC |
10x10-E |
22.2 |
46.28 |
1027.4 |
11,045 |
104.6 |
2117 |
74.67 |
2.06 |
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APC |
11x5.5-E |
22.2 |
35.91 |
797.3 |
11,639 |
60.6 |
3110 |
109.70 |
3.90 |
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APC |
11x7-E |
22.2 |
42.45 |
942.3 |
11,267 |
74.7 |
3183 |
112.28 |
3.38 |
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APC |
11x8-E |
22.2 |
46.26 |
1027.1 |
11,052 |
83.7 |
2963 |
104.52 |
2.88 |
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APC |
11x8.5-E |
22.2 |
49.73 |
1104.1 |
10,863 |
87.4 |
2986 |
105.33 |
2.70 |
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APC |
12x6-E |
22.2 |
47.33 |
1050.7 |
10,908 |
62.0 |
3752 |
132.35 |
3.57 |
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APC |
12x8-E |
22.2 |
56.47 |
1253.5 |
10,489 |
79.5 |
3316 |
116.97 |
2.65 |
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APC |
13x4-E |
22.2 |
40.13 |
891.0 |
11,392 |
43.2 |
3905 |
137.74 |
4.38 |
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MAS |
8x6x3 |
22.2 |
17.07 |
379.0 |
12,854 |
73.0 |
1546 |
54.53 |
4.08 |
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MAS |
9x7x3 |
22.2 |
26.95 |
598.2 |
12,179 |
80.7 |
2318 |
81.76 |
3.87 |
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MAS |
10x5x3 |
22.2 |
24.25 |
538.4 |
12,343 |
58.4 |
2382 |
84.02 |
4.42 |
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MAS |
10x7x3 |
22.2 |
35.00 |
777.1 |
11,698 |
77.5 |
2990 |
105.47 |
3.85 |
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MAS |
11x7x3 |
22.2 |
42.10 |
934.5 |
11,282 |
74.8 |
3504 |
123.60 |
3.75 |
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MAS |
11x8x3 |
22.2 |
45.77 |
1016.0 |
11,084 |
84.0 |
3505 |
123.63 |
3.45 |
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MAS |
12x6x3 |
22.2 |
46.70 |
1036.8 |
11,023 |
62.6 |
3956 |
139.54 |
3.82 |
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MAS |
12x8x3 |
22.2 |
63.02 |
1398.9 |
10,148 |
76.9 |
4700 |
165.79 |
3.36 |
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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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