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Cobra
C4130/14 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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14-Turn Delta |
450 RPM/Volt |
Io = 1.46 Amps @ 20v |
Rm = 0.024 Ohms |
60 Amps |
1330 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. |
400 gm, 14.11 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 |
14x10-E |
18.5 |
29.29 |
541.9 |
7,226 |
68.4 |
2834 |
99.97 |
5.23 |
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APC |
14x12-E |
18.5 |
43.87 |
811.5 |
6,752 |
76.7 |
2457 |
86.67 |
3.03 |
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APC |
15x8-E |
18.5 |
31.11 |
575.5 |
7,163 |
54.3 |
3174 |
111.96 |
5.52 |
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APC |
15x10-E |
18.5 |
44.33 |
820.1 |
6,739 |
63.8 |
3485 |
122.93 |
4.25 |
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APC |
16x8-E |
18.5 |
48.00 |
888.0 |
6,629 |
50.2 |
4044 |
142.65 |
4.55 |
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APC |
16x10-E |
18.5 |
50.80 |
939.9 |
6,441 |
61.0 |
4040 |
142.51 |
4.30 |
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APC |
16x12-E |
18.5 |
61.94 |
1146.0 |
6,215 |
70.6 |
3445 |
121.52 |
3.01 |
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APC |
17x8-E |
18.5 |
51.66 |
955.7 |
6,527 |
49.4 |
4541 |
160.18 |
4.75 |
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APC |
17x10-E |
18.5 |
60.72 |
1123.3 |
6,250 |
59.2 |
4521 |
159.47 |
4.02 |
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APC |
18x8-E |
18.5 |
52.13 |
964.4 |
6,505 |
49.3 |
5188 |
183.00 |
5.38 |
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APC |
18x10-E |
18.5 |
60.09 |
1111.7 |
6,261 |
59.3 |
5269 |
185.86 |
4.74 |
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MAS |
13x8x3 |
18.5 |
27.05 |
500.4 |
7,207 |
54.6 |
2717 |
95.84 |
5.43 |
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MAS |
14x7x3 |
18.5 |
31.79 |
588.2 |
7,047 |
46.7 |
3218 |
113.51 |
5.47 |
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MAS |
14x9x3 |
18.5 |
39.03 |
722.1 |
6,909 |
58.9 |
3687 |
130.05 |
5.11 |
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MAS |
15x7x3 |
18.5 |
40.74 |
753.6 |
6,858 |
45.5 |
3968 |
139.97 |
5.27 |
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MAS |
16x8x3 |
18.5 |
46.63 |
862.6 |
6,674 |
50.6 |
4472 |
157.74 |
5.18 |
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MAS |
16x10x3 |
18.5 |
56.76 |
1050.0 |
6,255 |
59.2 |
4943 |
174.36 |
4.71 |
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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 |
12x8-E |
22.2 |
27.48 |
610.1 |
8,803 |
66.7 |
2307 |
81.38 |
3.78 |
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APC |
12x10-E |
22.2 |
33.77 |
749.8 |
8,568 |
81.1 |
2505 |
88.36 |
3.34 |
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APC |
12x12-E |
22.2 |
37.20 |
825.9 |
8,440 |
95.9 |
2355 |
83.07 |
2.85 |
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APC |
13x6.5-E |
22.2 |
30.11 |
668.4 |
8,583 |
52.8 |
3136 |
110.62 |
4.69 |
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APC |
13x8-E |
22.2 |
33.77 |
749.7 |
8,577 |
65.0 |
3135 |
110.58 |
4.18 |
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APC |
13x10-E |
22.2 |
45.72 |
1015.1 |
8,157 |
77.2 |
2983 |
105.22 |
2.94 |
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APC |
14x7-E |
22.2 |
39.50 |
876.9 |
8,354 |
55.4 |
3776 |
133.19 |
4.31 |
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APC |
14x8.5-E |
22.2 |
40.73 |
904.3 |
8,327 |
67.0 |
3843 |
135.56 |
4.25 |
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APC |
14x10-E |
22.2 |
41.23 |
915.3 |
8,309 |
78.7 |
3652 |
128.82 |
3.99 |
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APC |
14x12-E |
22.2 |
58.73 |
1303.9 |
7,719 |
87.7 |
3240 |
114.29 |
2.48 |
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APC |
15x4-E |
22.2 |
30.70 |
681.6 |
8,683 |
32.9 |
3768 |
132.91 |
5.53 |
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APC |
15x6-E |
22.2 |
41.26 |
916.0 |
8,310 |
47.2 |
4408 |
155.49 |
4.81 |
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APC |
15x8-E |
22.2 |
42.63 |
946.3 |
8,260 |
62.6 |
4285 |
151.15 |
4.53 |
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APC |
15x10-E |
22.2 |
62.19 |
1380.7 |
7,627 |
72.2 |
4432 |
156.33 |
3.21 |
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APC |
16x8-E |
22.2 |
67.17 |
1491.1 |
7,468 |
56.6 |
5200 |
183.42 |
3.49 |
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MAS |
12x6x3 |
22.2 |
23.85 |
529.4 |
8,943 |
50.8 |
2630 |
92.77 |
4.97 |
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MAS |
12x8x3 |
22.2 |
33.52 |
744.1 |
8,578 |
65.0 |
3420 |
120.64 |
4.60 |
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MAS |
13x8x3 |
22.2 |
36.99 |
821.1 |
8,451 |
64.0 |
3784 |
133.48 |
4.61 |
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MAS |
14x7x3 |
22.2 |
43.27 |
960.6 |
8,239 |
54.6 |
4473 |
157.78 |
4.66 |
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MAS |
14x9x3 |
22.2 |
51.24 |
1137.5 |
7,974 |
68.0 |
4964 |
175.10 |
4.36 |
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MAS |
15x7x3 |
22.2 |
52.14 |
1157.6 |
7,826 |
51.9 |
5229 |
184.45 |
4.52 |
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MAS |
16x8x3 |
22.2 |
60.94 |
1352.9 |
7,650 |
58.0 |
5972 |
210.65 |
4.41 |
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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 |
11x5.5-E |
29.6 |
27.87 |
825.0 |
11,840 |
61.7 |
3267 |
115.24 |
3.96 |
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APC |
11x7-E |
29.6 |
33.64 |
995.8 |
11,586 |
76.8 |
3403 |
120.04 |
3.42 |
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APC |
11x8-E |
29.6 |
37.19 |
1100.9 |
11,421 |
86.5 |
3212 |
113.30 |
2.92 |
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APC |
11x8.5-E |
29.6 |
38.66 |
1144.3 |
11,190 |
90.1 |
3204 |
113.02 |
2.80 |
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APC |
11x10-E |
29.6 |
44.99 |
1331.6 |
11,104 |
105.2 |
3084 |
108.78 |
2.32 |
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APC |
12x6-E |
29.6 |
38.52 |
1140.2 |
11,338 |
64.4 |
4152 |
146.46 |
3.64 |
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APC |
12x8-E |
29.6 |
46.04 |
1362.6 |
11,063 |
83.8 |
3743 |
132.03 |
2.75 |
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APC |
12x10-E |
29.6 |
56.65 |
1676.8 |
10,648 |
100.8 |
3874 |
136.65 |
2.31 |
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APC |
12x12-E |
29.6 |
58.25 |
1724.3 |
10,581 |
120.2 |
3703 |
130.62 |
2.15 |
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APC |
13x4-E |
29.6 |
30.36 |
898.8 |
11,546 |
43.7 |
4077 |
143.81 |
4.54 |
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APC |
13x6.5-E |
29.6 |
55.15 |
1632.5 |
10,707 |
65.9 |
4849 |
171.04 |
2.97 |
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APC |
13x8-E |
29.6 |
56.18 |
1662.9 |
10,511 |
79.6 |
4852 |
171.15 |
2.92 |
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APC |
14x7-E |
29.6 |
69.17 |
2047.4 |
10,179 |
67.5 |
5717 |
201.66 |
2.79 |
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APC |
15x4-E |
29.6 |
54.60 |
1616.0 |
10,724 |
40.6 |
6076 |
214.32 |
3.76 |
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MAS |
10x7x3 |
29.6 |
27.08 |
801.4 |
11,862 |
78.6 |
3122 |
110.12 |
3.90 |
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MAS |
11x7x3 |
29.6 |
33.00 |
976.9 |
11,599 |
76.9 |
3756 |
132.49 |
3.84 |
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MAS |
11x8x3 |
29.6 |
36.63 |
1084.4 |
11,435 |
86.6 |
3813 |
134.50 |
3.52 |
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MAS |
12x6x3 |
29.6 |
37.36 |
1106.0 |
11,404 |
64.8 |
4361 |
153.83 |
3.94 |
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MAS |
12x8x3 |
29.6 |
52.31 |
1548.3 |
10,818 |
82.0 |
5478 |
193.23 |
3.54 |
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MAS |
13x8x3 |
29.6 |
57.64 |
1706.0 |
10,613 |
80.4 |
6023 |
212.45 |
3.53 |
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MAS |
14x7x3 |
29.6 |
67.29 |
1991.8 |
10,262 |
68.0 |
7142 |
251.92 |
3.59 |
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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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