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Cobra
CP2814-2350 Motor Propeller Data |
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Magnets |
Motor Wind |
Motor Kv |
No-Load Current |
Motor Resistance |
I Max |
P Max (4S) |
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14-Pole |
6-Turn Delta |
2350 RPM/Volt |
Io = 4.63 Amps @ 10v |
Rm = 0.010 Ohms |
90 Amps |
1330 W |
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Stator |
Outside Diameter |
Body Length |
Total Shaft Length |
Shaft Diameter |
Motor
Weight |
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12-Slot |
35.1 mm, 1.38 in. |
36.0 mm, 1.42 in. |
41.5 mm, 1.63 in. |
5.00 mm, 0.197 in. |
120
gm, 4.23 oz |
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Test
Data From |
Input |
8.0 V |
10.0 V |
12.0V |
14.0V |
Measured
Kv value |
Measured
Rm Value |
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Sample
Motor |
Io Value |
3.873 A |
4.628 A |
5.072 A |
5.727 A |
2398
RPM/Volt @ 10V |
0.0097
Ohms |
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Prop |
Prop |
Li-Po |
Input |
Motor |
Watts |
Prop |
Pitch |
Thrust |
Thrust |
Thrust Eff. |
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Manf. |
Size |
Cells |
Voltage |
Amps |
Input |
RPM |
Speed |
Grams |
Ounces |
Grams/W |
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APC |
5x4.3-MR |
3 |
11.1 |
36.41 |
404.1 |
24,130 |
98.3 |
1009 |
35.59 |
2.50 |
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APC |
5x4.5-MR |
3 |
11.1 |
36.39 |
404.0 |
23,744 |
101.2 |
975 |
34.39 |
2.41 |
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APC |
5x4.6-MR |
3 |
11.1 |
37.94 |
421.1 |
24,023 |
104.6 |
1068 |
37.67 |
2.54 |
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APC |
6x4-E |
3 |
11.1 |
43.02 |
477.5 |
23,613 |
89.4 |
1186 |
41.83 |
2.48 |
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APC |
6x4.3-MR |
3 |
11.1 |
55.27 |
613.5 |
22,350 |
91.0 |
1623 |
57.25 |
2.65 |
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APC |
6x4.5-MR |
3 |
11.1 |
52.51 |
582.8 |
22,683 |
96.7 |
1633 |
57.60 |
2.80 |
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APC |
6x5.5-E |
3 |
11.1 |
51.89 |
576.0 |
23,112 |
120.4 |
1253 |
44.20 |
2.18 |
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APC |
6x6-E |
3 |
11.1 |
59.10 |
656.0 |
22,485 |
127.8 |
1253 |
44.20 |
1.91 |
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APC |
7x4-E |
3 |
11.1 |
72.96 |
809.9 |
21,080 |
79.8 |
2002 |
70.62 |
2.47 |
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APC |
7x5-E |
3 |
11.1 |
89.14 |
989.5 |
20,305 |
96.1 |
1928 |
68.01 |
1.95 |
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HQ |
6x4.5 |
3 |
11.1 |
42.17 |
468.1 |
23,756 |
101.2 |
1446 |
51.01 |
3.09 |
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HQ |
6x4.5-BN |
3 |
11.1 |
59.34 |
658.7 |
22,534 |
96.0 |
1703 |
60.07 |
2.59 |
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HQ |
7x4.5 |
3 |
11.1 |
70.15 |
778.7 |
21,335 |
90.9 |
2077 |
73.26 |
2.67 |
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Prop |
Prop |
Li-Po |
Input |
Motor |
Watts |
Prop |
Pitch |
Thrust |
Thrust |
Thrust Eff. |
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Manf. |
Size |
Cells |
Voltage |
Amps |
Input |
RPM |
Speed |
Grams |
Ounces |
Grams/W |
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APC |
5x4.3-MR |
4 |
14.8 |
61.23 |
906.2 |
30,464 |
124.0 |
1609 |
56.76 |
1.78 |
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APC |
5x4.5-MR |
4 |
14.8 |
65.50 |
969.4 |
30,004 |
127.9 |
1585 |
55.91 |
1.64 |
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APC |
5x4.6-MR |
4 |
14.8 |
64.57 |
955.6 |
30,254 |
131.8 |
1723 |
60.78 |
1.80 |
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APC |
6x4-E |
4 |
14.8 |
72.99 |
1080.3 |
29,782 |
112.8 |
1841 |
64.94 |
1.70 |
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APC |
6x4.3-MR |
4 |
14.8 |
95.52 |
1413.7 |
28,181 |
114.8 |
2592 |
91.43 |
1.83 |
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APC |
6x4.5-MR |
4 |
14.8 |
86.65 |
1282.4 |
28,709 |
122.3 |
2648 |
93.40 |
2.06 |
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APC |
6x5.5-E |
4 |
14.8 |
86.05 |
1273.5 |
28,781 |
149.9 |
1886 |
66.53 |
1.48 |
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APC |
6x6-E |
4 |
14.8 |
95.75 |
1417.0 |
28,071 |
159.5 |
1897 |
66.91 |
1.34 |
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HQ |
5x4.5 |
4 |
14.8 |
36.01 |
532.9 |
32,500 |
138.5 |
1238 |
43.67 |
2.32 |
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HQ |
5x4.5-BN |
4 |
14.8 |
54.67 |
809.0 |
30,936 |
131.8 |
1740 |
61.38 |
2.15 |
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HQ |
6x4.5 |
4 |
14.8 |
68.70 |
1016.8 |
30,078 |
128.2 |
2316 |
81.69 |
2.28 |
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HQ |
6x4.5-BN |
4 |
14.8 |
93.56 |
1384.7 |
28,295 |
120.6 |
2648 |
93.40 |
1.91 |
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© 2017 Innov8tive Designs,
Inc. |
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This
chart, and the data contained within it, are the property of Innov8tive
Designs, Inc., and may not be reproduced without permission from the
author. |
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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, at an
altitude of |
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584 feet above sea level. The test voltages used are based on the
standard output of a Li-Po battery under load, which is 3.70 volts |
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per cell.
If you are using a battery that is larger in capacity than normal, or
has a very high C-rating, then your actual voltages will |
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be higher than those shown in the chart, and
this will result in a higher current and power value for every prop
used. You should |
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always test your actual power system with a
watt meter before flying your model to make sure that you are not exceeding
the |
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recommended current and power ratings of the
motor being used. The prop
recommendations in this chart assume that the motor |
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receives adequate cooling throughout its
operation. If your motor is being used
inside a cowl or fuselage, you must ensure that |
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the motor receives sufficient airflow, and
does not get too hot during operation.
It is always best to use a prop size that pulls no |
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more than 80% of the motors maximum
recommended current value to ensure safe operation under all conditions. |
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