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Tempest
1704-1480 Performance Test Data |
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Magnets |
Motor Wind |
Motor Kv |
No-Load Current |
Motor Resistance |
I Max |
P Max (3S) |
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12-Pole |
22-Turn Delta |
1480 RPM/Volt |
Io = 0.24 Amps @ 10v |
Rm = 0.640 Ohms |
5 Amps |
55 W |
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Stator |
Outside Diameter |
Body Length |
Total Shaft Length |
Shaft Diameter |
Motor Weight |
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9-Slot |
21.0 mm, 0.827 in. |
15.8 mm, 0.622 in. |
25.5 mm, 1.004 in. |
2.00 mm, 0.079 in. |
14.6 gm, 0.51 oz |
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Test
Data From |
Input |
6.0 V |
8.0 V |
10.0V |
12.0V |
Measured Kv value |
Measured Rm Value |
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Sample
Motor |
Io Value |
0.204 A |
0.219 A |
0.239 A |
0.248 A |
1467 RPM/Volt @ 10v |
0.6402 Ohms |
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2-cell
Li-Po Test Data |
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Prop |
Prop |
Li-Po |
Input |
Motor |
Input |
Prop |
Pitch Speed |
Thrust |
Thrust |
Thrust Eff. |
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Manf. |
Size |
Cells |
Voltage |
Amps |
Watts |
RPM |
in MPH |
Grams |
Ounces |
Grams/W |
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APC |
5x4.6-E |
2 |
7.4 |
2.31 |
17.1 |
8,025 |
35.0 |
110 |
3.87 |
6.43 |
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APC |
6x4-E |
2 |
7.4 |
2.41 |
17.8 |
7,900 |
29.9 |
119 |
4.20 |
6.67 |
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APC |
6x4.3-E |
2 |
7.4 |
3.05 |
22.5 |
7,105 |
28.9 |
151 |
5.32 |
6.70 |
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APC |
6x4.5-E |
2 |
7.4 |
2.97 |
22.0 |
7,178 |
30.6 |
152 |
5.37 |
6.93 |
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APC |
6x5.5-E |
2 |
7.4 |
3.02 |
22.3 |
7,093 |
36.9 |
105 |
3.72 |
4.72 |
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APC |
6x6-E |
2 |
7.4 |
3.25 |
24.1 |
6,809 |
38.7 |
109 |
3.85 |
4.54 |
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APC |
7x4-E |
2 |
7.4 |
3.24 |
24.0 |
6,819 |
25.8 |
174 |
6.15 |
7.27 |
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APC |
7x4-SF |
2 |
7.4 |
3.24 |
24.0 |
6,814 |
25.8 |
169 |
5.95 |
7.03 |
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APC |
7x5-E |
2 |
7.4 |
3.74 |
27.6 |
6,127 |
29.0 |
154 |
5.43 |
5.57 |
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APC |
7x5-SF |
2 |
7.4 |
3.59 |
26.6 |
6,364 |
30.1 |
166 |
5.86 |
6.25 |
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APC |
7x6-E |
2 |
7.4 |
3.95 |
29.2 |
5,838 |
33.2 |
154 |
5.43 |
5.26 |
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APC |
7x6-SF |
2 |
7.4 |
3.94 |
29.2 |
5,833 |
33.1 |
153 |
5.39 |
5.23 |
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APC |
8x3.8-SF |
2 |
7.4 |
4.04 |
29.9 |
5,680 |
20.4 |
200 |
7.05 |
6.69 |
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APC |
8x4.7-SF |
2 |
7.4 |
4.29 |
31.7 |
5,269 |
23.5 |
200 |
7.06 |
6.31 |
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HQ |
6x4.5-BN |
2 |
7.4 |
3.26 |
24.1 |
6,741 |
28.7 |
152 |
5.35 |
6.29 |
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HQ |
6x4.5-C |
2 |
7.4 |
2.64 |
19.5 |
7,586 |
32.3 |
141 |
4.97 |
7.21 |
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HQ |
7x4.5-C |
2 |
7.4 |
3.62 |
26.8 |
6,294 |
26.8 |
176 |
6.19 |
6.56 |
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3-cell
Li-Po Test Data |
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Prop |
Prop |
Li-Po |
Input |
Motor |
Input |
Prop |
Pitch Speed |
Thrust |
Thrust |
Thrust Eff. |
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Manf. |
Size |
Cells |
Voltage |
Amps |
Watts |
RPM |
in MPH |
Grams |
Ounces |
Grams/W |
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APC |
5x4.3-E |
3 |
11.1 |
3.81 |
42.3 |
10,787 |
43.9 |
185 |
6.54 |
4.38 |
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APC |
5x4.5-E |
3 |
11.1 |
3.79 |
42.1 |
10,819 |
46.1 |
181 |
6.37 |
4.29 |
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APC |
5x4.6-E |
3 |
11.1 |
3.84 |
42.6 |
10,738 |
46.8 |
195 |
6.89 |
4.58 |
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APC |
6x4-E |
3 |
11.1 |
4.04 |
44.9 |
10,376 |
39.3 |
205 |
7.24 |
4.58 |
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APC |
6x5.5-E |
3 |
11.1 |
4.80 |
53.3 |
9,126 |
47.5 |
177 |
6.26 |
3.33 |
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APC |
6x6-E |
3 |
11.1 |
4.94 |
54.8 |
8,836 |
50.2 |
185 |
6.54 |
3.38 |
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HQ |
5x3-C |
3 |
11.1 |
1.87 |
20.7 |
13,688 |
38.9 |
146 |
5.15 |
7.05 |
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HQ |
5x4-C |
3 |
11.1 |
2.60 |
28.8 |
12,553 |
47.5 |
180 |
6.36 |
6.25 |
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HQ |
5x4.5-BN |
3 |
11.1 |
3.79 |
42.0 |
10,796 |
46.0 |
206 |
7.26 |
4.90 |
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HQ |
5x4.5-C |
3 |
11.1 |
2.63 |
29.2 |
12,500 |
53.3 |
176 |
6.22 |
6.04 |
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HQ |
6x3-C |
3 |
11.1 |
2.60 |
28.9 |
12,541 |
35.6 |
188 |
6.65 |
6.52 |
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HQ |
6x4.5-BN |
3 |
11.1 |
5.07 |
56.2 |
8,543 |
36.4 |
242 |
8.53 |
4.30 |
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HQ |
6x4.5-C |
3 |
11.1 |
4.29 |
47.6 |
9,997 |
42.6 |
246 |
8.68 |
5.17 |
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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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