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Cobra
C4130/16 Motor Propeller Data |
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Motor Wind |
Motor Kv |
No-Load Current |
Motor Resistance |
I Max |
P Max (6S) |
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16-Turn
Delta |
390 RPM/Volt |
Io = 1.12 Amps @ 20v |
Rm = 0.032 Ohms |
55 Amps |
1220 W |
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Outside
Diameter |
Body Length |
Total Shaft Length |
Shaft Diameter |
Motor Weight |
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49.8
mm, 1.96 in. |
61.8 mm, 2.43 in. |
84.5 mm, 3.33 in. |
6.00 mm, 0.236 in. |
396 gm, 13.97 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 |
14x12-E |
18.5 |
30.19 |
558.6 |
6,024 |
68.5 |
1981 |
69.88 |
3.55 |
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APC |
15x8-E |
18.5 |
21.20 |
392.3 |
6,348 |
48.1 |
2519 |
88.85 |
6.42 |
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APC |
15x10-E |
18.5 |
29.77 |
550.7 |
6,034 |
57.1 |
2852 |
100.60 |
5.18 |
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APC |
16x8-E |
18.5 |
31.40 |
581.0 |
5,975 |
45.3 |
3278 |
115.63 |
5.64 |
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APC |
16x10-E |
18.5 |
34.98 |
647.1 |
5,869 |
55.6 |
3403 |
120.04 |
5.26 |
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APC |
16x12-E |
18.5 |
43.23 |
799.8 |
5,598 |
63.6 |
2818 |
99.40 |
3.52 |
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APC |
17x8-E |
18.5 |
34.85 |
644.7 |
5,871 |
44.5 |
3690 |
130.16 |
5.72 |
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APC |
17x10-E |
18.5 |
41.73 |
772.0 |
5,653 |
53.5 |
3764 |
132.77 |
4.88 |
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APC |
17x12-E |
18.5 |
46.08 |
852.5 |
5,502 |
62.5 |
3610 |
127.34 |
4.23 |
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APC |
18x8-E |
18.5 |
36.15 |
668.8 |
5,830 |
44.2 |
4154 |
146.53 |
6.21 |
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APC |
18x10-E |
18.5 |
42.19 |
780.5 |
5,640 |
53.4 |
4386 |
154.71 |
5.62 |
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APC |
19x8-E |
18.5 |
48.12 |
890.2 |
5,438 |
41.2 |
4879 |
172.10 |
5.48 |
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APC |
19x10-E |
18.5 |
47.28 |
874.6 |
5,466 |
51.8 |
4905 |
173.02 |
5.61 |
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APC |
19x12-E |
18.5 |
53.96 |
998.2 |
5,260 |
59.8 |
5054 |
178.27 |
5.06 |
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APC |
20x8-E |
18.5 |
49.29 |
911.9 |
5,311 |
40.2 |
5284 |
186.39 |
5.79 |
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MAS |
14x7x3 |
18.5 |
22.64 |
418.9 |
6,290 |
41.7 |
2596 |
91.57 |
6.20 |
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MAS |
14x9x3 |
18.5 |
27.16 |
502.4 |
6,123 |
52.2 |
2957 |
104.30 |
5.89 |
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MAS |
15x7x3 |
18.5 |
27.31 |
505.3 |
6,035 |
40.0 |
3073 |
108.40 |
6.08 |
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MAS |
16x8x3 |
18.5 |
32.54 |
601.9 |
5,951 |
45.1 |
3598 |
126.91 |
5.98 |
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MAS |
16x10x3 |
18.5 |
41.12 |
760.8 |
5,670 |
53.7 |
4148 |
146.31 |
5.45 |
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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 |
13x10-E |
22.2 |
30.34 |
673.5 |
7,301 |
69.1 |
2394 |
84.44 |
3.55 |
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APC |
14x7-E |
22.2 |
25.74 |
571.5 |
7,480 |
49.6 |
3002 |
105.89 |
5.25 |
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APC |
14x8.5-E |
22.2 |
27.12 |
602.1 |
7,431 |
59.8 |
3118 |
109.98 |
5.18 |
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APC |
14x10-E |
22.2 |
26.83 |
595.6 |
7,440 |
70.5 |
3027 |
106.77 |
5.08 |
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APC |
14x12-E |
22.2 |
40.22 |
892.8 |
6,946 |
78.9 |
2625 |
92.59 |
2.94 |
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APC |
15x6-E |
22.2 |
27.19 |
603.7 |
7,426 |
42.2 |
3451 |
121.73 |
5.72 |
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APC |
15x8-E |
22.2 |
28.38 |
629.9 |
7,373 |
55.9 |
3381 |
119.26 |
5.37 |
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APC |
15x10-E |
22.2 |
41.36 |
918.2 |
6,909 |
65.4 |
3682 |
129.88 |
4.01 |
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APC |
16x8-E |
22.2 |
44.19 |
981.0 |
6,807 |
51.6 |
4298 |
151.61 |
4.38 |
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APC |
16x10-E |
22.2 |
48.49 |
1076.5 |
6,668 |
63.1 |
4337 |
152.98 |
4.03 |
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APC |
16x12-E |
22.2 |
57.00 |
1265.4 |
6,363 |
72.3 |
3669 |
129.42 |
2.90 |
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APC |
17x8-E |
22.2 |
48.09 |
1067.6 |
6,689 |
50.7 |
4849 |
171.04 |
4.54 |
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APC |
17x10-E |
22.2 |
54.37 |
1207.1 |
6,360 |
60.2 |
4800 |
169.31 |
3.98 |
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APC |
18x8-E |
22.2 |
47.65 |
1057.7 |
6,699 |
50.8 |
5524 |
194.85 |
5.22 |
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APC |
18x10-E |
22.2 |
55.34 |
1228.6 |
6,423 |
60.8 |
5644 |
199.08 |
4.59 |
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MAS |
13x8x3 |
22.2 |
25.54 |
567.0 |
7,494 |
56.8 |
2988 |
105.40 |
5.27 |
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MAS |
14x7x3 |
22.2 |
29.98 |
665.6 |
7,318 |
48.5 |
3572 |
126.00 |
5.37 |
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MAS |
14x9x3 |
22.2 |
35.73 |
793.2 |
7,104 |
60.5 |
3969 |
140.00 |
5.00 |
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MAS |
15x7x3 |
22.2 |
37.05 |
822.5 |
7,066 |
46.8 |
4268 |
150.55 |
5.19 |
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MAS |
16x8x3 |
22.2 |
41.23 |
915.2 |
6,806 |
51.6 |
4675 |
164.90 |
5.11 |
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MAS |
16x10x3 |
22.2 |
53.39 |
1185.3 |
6,490 |
61.5 |
5474 |
193.09 |
4.62 |
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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 |
29.6 |
26.28 |
777.8 |
10,059 |
81.0 |
2628 |
92.70 |
3.38 |
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APC |
11x10-E |
29.6 |
30.10 |
891.0 |
9,883 |
93.6 |
2448 |
86.35 |
2.75 |
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APC |
12x6-E |
29.6 |
24.89 |
736.6 |
10,129 |
57.6 |
3269 |
115.31 |
4.44 |
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APC |
12x8-E |
29.6 |
30.57 |
904.8 |
9,869 |
74.8 |
2950 |
104.06 |
3.26 |
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APC |
12x10-E |
29.6 |
37.70 |
1115.9 |
9,551 |
90.4 |
3123 |
110.16 |
2.80 |
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APC |
12x12-E |
29.6 |
40.26 |
1191.6 |
9,445 |
107.3 |
2973 |
104.87 |
2.49 |
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APC |
13x6.5-E |
29.6 |
35.30 |
1045.0 |
9,655 |
59.4 |
3992 |
140.81 |
3.82 |
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APC |
13x8-E |
29.6 |
37.73 |
1116.8 |
9,544 |
72.3 |
3958 |
139.61 |
3.54 |
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APC |
13x10-E |
29.6 |
50.92 |
1507.4 |
8,999 |
85.2 |
3686 |
130.02 |
2.45 |
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APC |
14x7-E |
29.6 |
44.99 |
1331.7 |
9,253 |
61.3 |
4681 |
165.12 |
3.51 |
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APC |
14x8.5-E |
29.6 |
45.83 |
1356.5 |
9,224 |
74.2 |
4624 |
163.11 |
3.41 |
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APC |
14x10-E |
29.6 |
45.56 |
1348.6 |
9,240 |
87.5 |
4518 |
159.37 |
3.35 |
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APC |
14x12-E |
29.6 |
63.63 |
1883.6 |
8,519 |
96.8 |
3940 |
138.98 |
2.09 |
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APC |
15x4-E |
29.6 |
34.80 |
1030.2 |
9,682 |
36.7 |
4914 |
173.33 |
4.77 |
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APC |
15x6-E |
29.6 |
46.73 |
1383.1 |
9,193 |
52.2 |
5417 |
191.08 |
3.92 |
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APC |
15x8-E |
29.6 |
47.84 |
1416.0 |
9,147 |
69.3 |
5246 |
185.05 |
3.70 |
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MAS |
11x8x3 |
29.6 |
24.68 |
730.6 |
10,144 |
76.8 |
3029 |
106.84 |
4.15 |
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MAS |
12x6x3 |
29.6 |
25.44 |
753.1 |
10,104 |
57.4 |
3397 |
119.82 |
4.51 |
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MAS |
12x8x3 |
29.6 |
34.98 |
1035.3 |
9,531 |
72.2 |
4207 |
148.40 |
4.06 |
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MAS |
13x8x3 |
29.6 |
39.76 |
1176.8 |
9,474 |
71.8 |
4797 |
169.21 |
4.08 |
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MAS |
14x7x3 |
29.6 |
46.61 |
1379.6 |
9,194 |
60.9 |
5678 |
200.28 |
4.12 |
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MAS |
14x9x3 |
29.6 |
54.85 |
1623.6 |
8,861 |
75.5 |
6211.8 |
219.11 |
3.83 |
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MAS |
15x7x3 |
29.6 |
57.02 |
1687.8 |
8,790 |
58.3 |
6690 |
235.98 |
3.96 |
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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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