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Cobra
C3515/18 Motor Propeller Data |
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|
Motor Wind |
Motor Kv |
No-Load Current |
Motor Resistance |
I Max |
P Max (4S) |
|
|
18-Turn
Delta |
740 RPM/Volt |
Io = 1.01 Amps @ 14v |
Rm = 0.043 Ohms |
36 Amps |
530 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. |
41.0 mm, 1.61 in. |
63.0 mm, 2.48 in. |
5.00 mm, 0.197 in. |
178 gm, 6.28 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 |
10x10-E |
11.1 |
17.75 |
197.0 |
6,609 |
62.6 |
767 |
27.05 |
3.89 |
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APC |
11x4.7-SF |
11.1 |
15.93 |
176.8 |
6,754 |
30.1 |
1202 |
42.40 |
6.80 |
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APC |
11x7-SF |
11.1 |
22.14 |
245.8 |
6,308 |
41.8 |
1389 |
49.00 |
5.65 |
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APC |
11x8.5-E |
11.1 |
17.34 |
192.5 |
6,639 |
53.4 |
1101 |
38.84 |
5.72 |
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APC |
11x10-E |
11.1 |
20.63 |
229.0 |
6,409 |
60.7 |
990 |
34.92 |
4.32 |
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APC |
12x3.8-SF |
11.1 |
19.68 |
218.5 |
6,481 |
23.3 |
1444 |
50.94 |
6.61 |
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APC |
12x6-E |
11.1 |
16.32 |
181.1 |
6,733 |
38.3 |
1275 |
44.97 |
7.04 |
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APC |
12x6-SF |
11.1 |
25.89 |
287.4 |
6,027 |
34.2 |
1654 |
58.34 |
5.76 |
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APC |
12x8-E |
11.1 |
20.53 |
227.8 |
6,411 |
48.6 |
1172 |
41.34 |
5.14 |
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APC |
12x8-SF |
11.1 |
30.67 |
340.4 |
5,764 |
43.7 |
1692 |
59.68 |
4.97 |
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APC |
12x10-E |
11.1 |
23.68 |
262.9 |
6,219 |
58.9 |
1275 |
44.97 |
4.85 |
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APC |
13x4.7-SF |
11.1 |
25.26 |
280.3 |
6,104 |
27.2 |
1752 |
61.80 |
6.25 |
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APC |
13x6.5-E |
11.1 |
21.91 |
243.2 |
6,330 |
39.0 |
1570 |
55.38 |
6.45 |
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APC |
13x8-E |
11.1 |
23.62 |
262.2 |
6,176 |
46.8 |
1581 |
55.77 |
6.03 |
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APC |
13x10-E |
11.1 |
28.27 |
313.8 |
5,904 |
55.9 |
1529 |
53.93 |
4.87 |
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APC |
14x7-E |
11.1 |
26.28 |
291.7 |
5,996 |
39.7 |
1820 |
64.20 |
6.24 |
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APC |
14x8.5-E |
11.1 |
28.72 |
318.7 |
5,888 |
47.4 |
1861 |
65.64 |
5.84 |
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APC |
14x10-E |
11.1 |
28.49 |
316.2 |
5,902 |
55.9 |
1829 |
64.52 |
5.78 |
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APC |
14x12-E |
11.1 |
37.43 |
415.5 |
5,328 |
60.5 |
1594 |
56.23 |
3.84 |
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APC |
15x4-E |
11.1 |
22.06 |
244.8 |
6,326 |
24.0 |
1809 |
63.81 |
7.39 |
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APC |
15x6-E |
11.1 |
27.94 |
310.1 |
5,933 |
33.7 |
2037 |
71.85 |
6.57 |
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APC |
15x8-E |
11.1 |
30.55 |
339.1 |
5,761 |
43.6 |
2089 |
73.69 |
6.16 |
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APC |
15x10-E |
11.1 |
38.20 |
424.0 |
5,263 |
49.8 |
2056 |
72.52 |
4.85 |
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APC |
16x8-E |
11.1 |
39.84 |
442.3 |
5,182 |
39.3 |
2368 |
83.53 |
5.35 |
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MAS |
11x7x3 |
11.1 |
16.82 |
186.6 |
6,679 |
44.3 |
1179 |
41.59 |
6.32 |
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MAS |
11x8x3 |
11.1 |
18.61 |
206.6 |
6,578 |
49.8 |
1263 |
44.55 |
6.11 |
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MAS |
12x6x3 |
11.1 |
18.80 |
208.6 |
6,575 |
37.4 |
1353 |
47.73 |
6.48 |
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MAS |
12x8x3 |
11.1 |
25.38 |
281.8 |
6,068 |
46.0 |
1643 |
57.95 |
5.83 |
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MAS |
13x8x3 |
11.1 |
28.14 |
312.4 |
5,935 |
45.0 |
1823 |
64.30 |
5.84 |
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MAS |
14x7x3 |
11.1 |
32.14 |
356.7 |
5,706 |
37.8 |
2057 |
72.56 |
5.77 |
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MAS |
14x9x3 |
11.1 |
37.03 |
411.1 |
5,416 |
46.2 |
2206 |
77.81 |
5.37 |
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MAS |
15x7x3 |
11.1 |
38.03 |
422.2 |
5,320 |
35.3 |
2303 |
81.24 |
5.46 |
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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 |
9x7.5-E |
14.8 |
18.12 |
268.2 |
8,992 |
63.9 |
1030 |
36.33 |
3.84 |
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APC |
9x9-E |
14.8 |
21.14 |
312.9 |
8,734 |
74.4 |
1038 |
36.61 |
3.32 |
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APC |
10x6-E |
14.8 |
16.04 |
237.4 |
9,160 |
52.0 |
1326 |
46.77 |
5.59 |
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APC |
10x7-E |
14.8 |
18.48 |
273.4 |
8,963 |
59.4 |
1401 |
49.42 |
5.12 |
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APC |
10x10-E |
14.8 |
26.44 |
391.4 |
8,332 |
78.9 |
1254 |
44.23 |
3.20 |
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APC |
11x5.5-E |
14.8 |
20.14 |
298.0 |
8,816 |
45.9 |
1667 |
58.80 |
5.59 |
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APC |
11x7-E |
14.8 |
23.84 |
352.8 |
8,528 |
56.5 |
1763 |
62.19 |
5.00 |
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APC |
11x8-E |
14.8 |
25.49 |
377.2 |
8,409 |
63.7 |
1740 |
61.38 |
4.61 |
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APC |
11x8.5-E |
14.8 |
27.36 |
405.0 |
8,225 |
66.2 |
1714 |
60.46 |
4.23 |
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APC |
11x10-E |
14.8 |
31.89 |
472.0 |
7,953 |
75.3 |
1557 |
54.92 |
3.30 |
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APC |
12x6-E |
14.8 |
26.03 |
385.2 |
8,372 |
47.6 |
2045 |
72.13 |
5.31 |
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APC |
12x8-E |
14.8 |
31.85 |
471.4 |
7,906 |
59.9 |
1830 |
64.55 |
3.88 |
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APC |
12x10-E |
14.8 |
37.22 |
550.8 |
7,567 |
71.7 |
1940 |
68.43 |
3.52 |
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APC |
13x4-E |
14.8 |
20.67 |
305.9 |
8,772 |
33.2 |
1932 |
68.15 |
6.32 |
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APC |
13x6.5-E |
14.8 |
34.41 |
509.2 |
7,710 |
47.5 |
2446 |
86.28 |
4.80 |
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APC |
13x8-E |
14.8 |
37.35 |
552.8 |
7,547 |
57.2 |
2387 |
84.20 |
4.32 |
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APC |
15x4-E |
14.8 |
34.65 |
512.9 |
7,749 |
29.4 |
2865 |
101.06 |
5.59 |
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MAS |
9x7x3 |
14.8 |
16.76 |
248.0 |
9,064 |
60.1 |
1272 |
44.87 |
5.13 |
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MAS |
10x5x3 |
14.8 |
15.03 |
222.5 |
9,259 |
43.8 |
1294 |
45.64 |
5.82 |
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MAS |
10x7x3 |
14.8 |
21.48 |
318.0 |
8,712 |
57.8 |
1617 |
57.04 |
5.09 |
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MAS |
11x7x3 |
14.8 |
25.51 |
377.5 |
8,373 |
55.5 |
1886 |
66.53 |
5.00 |
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MAS |
11x8x3 |
14.8 |
28.02 |
414.7 |
8,199 |
62.1 |
1968 |
69.42 |
4.75 |
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MAS |
12x6x3 |
14.8 |
28.08 |
415.6 |
8,172 |
46.4 |
2123 |
74.89 |
5.11 |
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MAS |
12x8x3 |
14.8 |
38.04 |
563.0 |
7,485 |
56.7 |
2512 |
88.61 |
4.46 |
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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 |
8x8-E |
18.5 |
21.51 |
398.0 |
11,036 |
83.6 |
1072 |
37.81 |
2.69 |
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APC |
9x6-E |
18.5 |
17.27 |
319.6 |
11,410 |
64.8 |
1389 |
49.00 |
4.35 |
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APC |
9x7.5-E |
18.5 |
26.48 |
489.9 |
10,608 |
75.3 |
1456 |
51.36 |
2.97 |
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APC |
9x9-E |
18.5 |
29.52 |
546.1 |
10,355 |
88.3 |
1471 |
51.89 |
2.69 |
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APC |
10x5-E |
18.5 |
21.33 |
394.6 |
11,042 |
52.3 |
1785 |
62.96 |
4.52 |
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APC |
10x6-E |
18.5 |
22.64 |
418.8 |
10,933 |
62.1 |
1898 |
66.95 |
4.53 |
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APC |
10x7-E |
18.5 |
26.32 |
487.0 |
10,623 |
70.4 |
2019 |
71.22 |
4.15 |
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APC |
10x10-E |
18.5 |
36.86 |
681.9 |
9,732 |
92.2 |
1730 |
61.02 |
2.54 |
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APC |
11x5.5-E |
18.5 |
29.00 |
536.5 |
10,407 |
54.2 |
2399 |
84.62 |
4.47 |
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APC |
11x7-E |
18.5 |
34.13 |
631.5 |
10,015 |
66.4 |
2499 |
88.15 |
3.96 |
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APC |
11x8-E |
18.5 |
36.83 |
681.3 |
9,796 |
74.2 |
2304 |
81.27 |
3.38 |
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APC |
12x6-E |
18.5 |
37.65 |
696.5 |
9,735 |
55.3 |
2903 |
102.40 |
4.17 |
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APC |
13x4-E |
18.5 |
28.67 |
530.3 |
10,440 |
39.5 |
2950 |
104.06 |
5.56 |
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MAS |
8x6x3 |
18.5 |
14.98 |
277.0 |
11,606 |
65.9 |
1251 |
44.13 |
4.52 |
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MAS |
9x7x3 |
18.5 |
23.49 |
434.5 |
10,868 |
72.0 |
1859 |
65.57 |
4.28 |
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MAS |
10x5x3 |
18.5 |
21.01 |
388.6 |
11,077 |
52.4 |
1884 |
66.46 |
4.85 |
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MAS |
10x7x3 |
18.5 |
29.63 |
548.1 |
10,348 |
68.6 |
2294 |
80.92 |
4.19 |
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MAS |
11x7x3 |
18.5 |
35.49 |
656.6 |
9,894 |
65.6 |
2679 |
94.50 |
4.08 |
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MAS |
11x8x3 |
18.5 |
38.87 |
719.0 |
9,664 |
73.2 |
2789 |
98.38 |
3.88 |
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MAS |
12x6x3 |
18.5 |
39.12 |
723.6 |
9,602 |
54.6 |
2999 |
105.79 |
4.14 |
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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 |
8x4-E |
22.2 |
14.43 |
320.3 |
14,085 |
53.4 |
1323 |
46.67 |
4.13 |
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APC |
8x6-E |
22.2 |
22.81 |
506.4 |
13,196 |
75.0 |
1535 |
54.14 |
3.03 |
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APC |
8x8-E |
22.2 |
29.02 |
644.2 |
12,655 |
95.9 |
1401 |
49.42 |
2.17 |
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APC |
9x4.5-E |
22.2 |
20.45 |
454.0 |
13,446 |
57.3 |
1947 |
68.68 |
4.29 |
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APC |
9x6-E |
22.2 |
23.49 |
521.4 |
13,127 |
74.6 |
1865 |
65.79 |
3.58 |
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APC |
9x7.5-E |
22.2 |
36.11 |
801.6 |
12,059 |
85.6 |
1906 |
67.23 |
2.38 |
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APC |
10x5-E |
22.2 |
29.23 |
649.0 |
12,632 |
59.8 |
2325 |
82.01 |
3.58 |
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APC |
10x6-E |
22.2 |
30.25 |
671.6 |
12,483 |
70.9 |
2450 |
86.42 |
3.65 |
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APC |
10x7-E |
22.2 |
36.00 |
799.2 |
12,070 |
80.0 |
2604 |
91.85 |
3.26 |
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APC |
11x5.5-E |
22.2 |
39.69 |
881.2 |
11,759 |
61.2 |
3170 |
111.82 |
3.60 |
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MAS |
8x6x3 |
22.2 |
20.08 |
445.7 |
13,480 |
76.6 |
1740 |
61.38 |
3.90 |
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MAS |
9x7x3 |
22.2 |
30.60 |
679.3 |
12,488 |
82.8 |
2464 |
86.91 |
3.63 |
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MAS |
10x5x3 |
22.2 |
27.69 |
614.7 |
12,760 |
60.4 |
2536 |
89.45 |
4.13 |
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MAS |
10x7x3 |
22.2 |
39.05 |
866.9 |
11,785 |
78.1 |
3027 |
106.77 |
3.49 |
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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 |
|
|
environment. The test voltages used are based on a
properly sized Li-Po battery for the current |
|
|
draw of the motor being
tested. If you are using a larger than
normal capacity battery, or a very |
|
|
high C-Rated battery,
your actual voltages will be higher than those shown in this chart, and this |
|
|
will result in higer
current draw for each prop used. You
should always test your power system |
|
|
with a watt meter
whenever a prop is used to ensure that you are not exceeding the recommended |
|
|
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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