|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cobra
C2208/34 Motor Propeller Data |
|
|
Motor Wind |
Motor Kv |
No-Load Current |
Motor Resistance |
I Max |
P Max (3S) |
|
|
34-Turn Delta |
1180 RPM/Volt |
Io = 0.40 Amps @ 8v |
Rm = 0.152 Ohms |
12 Amps |
130 W |
|
|
|
|
|
Outside
Diameter |
Body Length |
Total Shaft Length |
Shaft Diameter |
Motor Weight |
|
|
27.7 mm, 1.09in. |
24.0 mm, 0.94 in. |
38.0 mm, 1.50 in. |
3.17 mm, 0.125 in. |
47.0 gm, 1.66 oz |
|
|
|
|
|
Prop |
Prop |
Input |
Motor |
Watts |
Prop |
Pitch |
Thrust |
Thrust |
Thrust Eff. |
|
|
|
|
|
Manf. |
Size |
Voltage |
Amps |
Input |
RPM |
Speed |
Grams |
Ounces |
Grams/W |
|
|
|
|
|
APC |
8x3.8-SF |
7.4 |
5.87 |
43.4 |
6,980 |
25.1 |
358 |
12.63 |
8.24 |
|
|
|
|
|
APC |
8x4-E |
7.4 |
5.38 |
39.8 |
7,140 |
27.0 |
335 |
11.82 |
8.41 |
|
|
|
|
|
APC |
8x6-E |
7.4 |
7.41 |
54.8 |
6,510 |
37.0 |
336 |
11.85 |
6.13 |
|
|
|
|
|
APC |
8x6-SF |
7.4 |
8.58 |
63.5 |
6,130 |
34.8 |
382 |
13.47 |
6.02 |
|
|
|
|
|
APC |
9x3.8-SF |
7.4 |
7.44 |
55.1 |
6,500 |
23.4 |
438 |
15.45 |
7.96 |
|
|
|
|
|
APC |
9x4.5-E |
7.4 |
7.09 |
52.5 |
6,600 |
28.1 |
425 |
14.99 |
8.10 |
|
|
|
|
|
APC |
9x4.7-SF |
7.4 |
7.92 |
58.6 |
6,340 |
28.2 |
451 |
15.91 |
7.70 |
|
|
|
|
|
APC |
9x6-E |
7.4 |
8.19 |
60.6 |
6,270 |
35.6 |
444 |
15.66 |
7.33 |
|
|
|
|
|
APC |
9x6-SF |
7.4 |
10.78 |
79.8 |
5,400 |
30.7 |
466 |
16.44 |
5.84 |
|
|
|
|
|
APC |
9x7.5-E |
7.4 |
10.49 |
77.6 |
5,530 |
39.3 |
393 |
13.86 |
5.06 |
|
|
|
|
|
APC |
9x7.5-SF |
7.4 |
11.89 |
88.0 |
5,040 |
35.8 |
443 |
15.63 |
5.03 |
|
|
|
|
|
APC |
10x3.8-SF |
7.4 |
10.28 |
76.1 |
5,570 |
20.0 |
539 |
19.01 |
7.09 |
|
|
|
|
|
APC |
10x4.7-SF |
7.4 |
10.91 |
80.7 |
5,350 |
23.8 |
552 |
19.47 |
6.84 |
|
|
|
|
|
APC |
10x5-E |
7.4 |
9.08 |
67.2 |
5,960 |
28.2 |
506 |
17.85 |
7.53 |
|
|
|
|
|
APC |
10x6-E |
7.4 |
9.66 |
71.5 |
5,760 |
32.7 |
495 |
17.46 |
6.92 |
|
|
|
|
|
APC |
10x7-E |
7.4 |
10.59 |
78.4 |
5,440 |
36.1 |
492 |
17.35 |
6.28 |
|
|
|
|
|
APC |
10x7-SF |
7.4 |
12.90 |
95.5 |
4,680 |
31.0 |
527 |
18.59 |
5.52 |
|
|
|
|
|
APC |
11x3.8-SF |
7.4 |
10.91 |
80.7 |
5,350 |
19.3 |
577 |
20.35 |
7.15 |
|
|
|
|
|
APC |
11x4.7-SF |
7.4 |
12.46 |
92.2 |
4,850 |
21.6 |
603 |
21.27 |
6.54 |
|
|
|
|
|
APC |
11x5.5-E |
7.4 |
10.97 |
81.2 |
5,310 |
27.7 |
570 |
20.11 |
7.02 |
|
|
|
|
|
APC |
9x4.5-E |
7.4 |
12.67 |
93.8 |
7,730 |
32.9 |
586 |
20.67 |
6.25 |
|
|
|
|
|
GWS |
8x4-DD |
7.4 |
4.31 |
31.9 |
7,470 |
28.3 |
291 |
10.26 |
9.12 |
|
|
|
|
|
GWS |
8x4x3-DD |
7.4 |
5.38 |
39.8 |
7,140 |
27.0 |
334 |
11.78 |
8.39 |
|
|
|
|
|
GWS |
8x4.3-SF |
7.4 |
5.89 |
43.6 |
6,990 |
28.5 |
350 |
12.35 |
8.03 |
|
|
|
|
|
GWS |
8x6-SF |
7.4 |
7.40 |
54.8 |
6,510 |
37.0 |
386 |
13.62 |
7.05 |
|
|
|
|
|
GWS |
9x4.7-SF |
7.4 |
8.40 |
62.2 |
6,190 |
27.6 |
466 |
16.44 |
7.50 |
|
|
|
|
|
GWS |
9x5-DD |
7.4 |
7.05 |
52.2 |
6,620 |
31.3 |
433 |
15.27 |
8.30 |
|
|
|
|
|
GWS |
9x5x3-DD |
7.4 |
8.41 |
62.2 |
6,190 |
29.3 |
464 |
16.37 |
7.46 |
|
|
|
|
|
GWS |
10x6-DD |
7.4 |
8.93 |
66.1 |
6,020 |
34.2 |
496 |
17.50 |
7.51 |
|
|
|
|
|
GWS |
10x6x3-DD |
7.4 |
10.83 |
80.1 |
5,390 |
30.6 |
550 |
19.40 |
6.86 |
|
|
|
|
|
|
|
|
|
|
|
Prop |
Prop |
Input |
Motor |
Watts |
Prop |
Pitch |
Thrust |
Thrust |
Thrust Eff. |
|
|
|
|
|
Manf. |
Size |
Voltage |
Amps |
Input |
RPM |
Speed |
Grams |
Ounces |
Grams/W |
|
|
|
|
|
APC |
7x4-E |
11.1 |
6.87 |
76.3 |
10,640 |
40.3 |
470 |
16.58 |
6.16 |
|
|
|
|
|
APC |
7x4-SF |
11.1 |
6.70 |
74.4 |
10,690 |
40.5 |
448 |
15.80 |
6.02 |
|
|
|
|
|
APC |
7x5-E |
11.1 |
8.24 |
91.5 |
10,180 |
48.2 |
498 |
17.57 |
5.44 |
|
|
|
|
|
APC |
7x5-SF |
11.1 |
8.26 |
91.7 |
10,150 |
48.1 |
478 |
16.86 |
5.21 |
|
|
|
|
|
APC |
7x6-E |
11.1 |
8.84 |
98.1 |
9,940 |
56.5 |
498 |
17.57 |
5.08 |
|
|
|
|
|
APC |
7x6-SF |
11.1 |
9.73 |
108.0 |
9,630 |
54.7 |
460 |
16.23 |
4.26 |
|
|
|
|
|
APC |
8x3.8-SF |
11.1 |
10.66 |
118.3 |
9,250 |
33.3 |
663 |
23.39 |
5.60 |
|
|
|
|
|
APC |
8x4-E |
11.1 |
9.59 |
106.4 |
9,660 |
36.6 |
627 |
22.12 |
5.89 |
|
|
|
|
|
APC |
8x6-E |
11.1 |
12.35 |
137.1 |
8,590 |
48.8 |
617 |
21.76 |
4.50 |
|
|
|
|
|
APC |
8x6-SF |
11.1 |
14.55 |
161.5 |
7,720 |
43.9 |
621 |
21.90 |
3.85 |
|
|
|
|
|
APC |
9x3.8-SF |
11.1 |
12.95 |
143.7 |
8,360 |
30.1 |
773 |
27.27 |
5.38 |
|
|
|
|
|
APC |
9x4.5-E |
11.1 |
12.22 |
135.6 |
8,670 |
36.9 |
741 |
26.14 |
5.46 |
|
|
|
|
|
APC |
9x4.7-SF |
11.1 |
12.87 |
142.9 |
8,370 |
37.3 |
779 |
27.48 |
5.45 |
|
|
|
|
|
GWS |
8x4-DD |
11.1 |
7.78 |
86.4 |
10,320 |
39.1 |
579 |
20.42 |
6.70 |
|
|
|
|
|
GWS |
9x5-DD |
11.1 |
11.95 |
132.6 |
8,760 |
41.5 |
773 |
27.27 |
5.83 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Propeller Chart Color Code Explanation |
|
|
|
|
|
|
|
|
|
|
The prop is to small to get good performance
from the motor. (Less than 50% power) |
|
|
|
|
|
|
|
|
|
The prop is sized right to get good power
from the motor. (50 to 80% power) |
|
|
|
|
The prop can be used, but full throttle
should be kept to short bursts. (80 to 100% power) |
|
|
|
|
The prop is too big for the motor and should
not be used. (Over 100% power) |
|
|
|
|
|
|
|
|
PLEASE
NOTE: |
|
|
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 |
|
|
receiving adequate
cooling throughout its operation. If
your motor is being used inside a cowl, you |
|
|
must provide adequate
cooling to the motor and make sure that the motor is not getting too hot |
|
|
during operation. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|