Tempest 3515-1330 Performance Test Data
Magnets Motor Wind Motor Kv No-Load Current Motor Resistance I Max P Max (4S)
14-Pole 10-Turn Delta 1330 RPM/Volt Io = 3.08 Amps @ 10v Rm = 0.018 Ohms 65 Amps 960 W
 
Stator Outside Diameter Body Length Total Shaft Length Shaft Diameter Motor Weight
12-Slot 42.2 mm,  1.661 in. 36.5 mm,  1.437 in. 58.8 mm,  2.315 in. 5.00 mm,  0.197 in. 169 gm,   5.96 oz
 
Test Data From Input 8.0 V 10.0 V 12.0V 14.0V Measured Kv value Measured Rm Value
Sample Motor Io Value 2.759 A 3.084 A 3.330 A 3.532 A 1307 RPM/Volt @ 10v 0.0175 Ohms
 
3-cell Li-Po Test Data
Prop Prop Li-Po Input Motor Input Prop Pitch Speed Thrust  Thrust Thrust Eff.
Manf. Size Cells Voltage Amps Watts RPM in MPH Grams Ounces Grams/W
APC 8x6-E 3 11.1 28.06 311.5 12,099 68.7 1211 42.71 3.89
APC 8x8-E 3 11.1 35.74 396.7 11,682 88.5 1179 41.59 2.97
APC 9x4.5-E 3 11.1 28.35 314.7 12,088 51.5 1475 52.04 4.69
APC 9x6-E 3 11.1 33.45 371.3 11,800 67.0 1492 52.64 4.02
APC 9x7.5-E 3 11.1 49.68 551.4 10,793 76.7 1563 55.14 2.83
APC 9x8x3-E 3 11.1 50.69 562.7 10,758 81.5 2026 71.45 3.60
APC 9x9-E 3 11.1 55.16 612.3 10,454 89.1 1509 53.23 2.46
APC 10x5-E 3 11.1 39.28 436.0 11,365 53.8 1856 65.47 4.26
APC 10x6-E 3 11.1 43.94 487.7 11,123 63.2 1943 68.55 3.98
APC 10x6-F 3 11.1 35.96 399.2 11,690 66.4 1716 60.53 4.30
APC 10x7-E 3 11.1 50.63 562.0 10,705 71.0 1945 68.61 3.46
APC 10x8-E 3 11.1 55.71 618.4 10,399 78.8 1945 68.61 3.15
APC 10x10-E 3 11.1 68.51 760.4 9,782 92.6 1702 60.03 2.24
APC 11x5.5-E 3 11.1 54.36 603.4 10,487 54.6 2440 86.05 4.04
APC 11x7-E 3 11.1 62.37 692.3 9,986 66.2 2477 87.37 3.58
APC 11x8-E 3 11.1 67.24 746.4 9,677 73.3 2298 81.04 3.08
APC 13x4-E 3 11.1 60.17 667.9 10,134 38.4 2929 103.32 4.39
APC 13x5.5-E 3 11.1 71.69 795.7 9,441 49.2 3107 109.61 3.90
BadAss 10x5-W 3 11.1 36.18 401.6 11,670 55.3 1676 59.12 4.17
BadAss 10x6-W 3 11.1 48.86 542.3 10,869 61.8 1601 56.48 2.95
BadAss 10x7-W 3 11.1 50.94 565.4 10,733 71.1 1539 54.29 2.72
BadAss 10x8-W 3 11.1 55.87 620.1 10,434 79.0 1672 58.99 2.70
BadAss 11x5-W 3 11.1 46.57 516.9 11,014 52.1 2076 73.23 4.02
BadAss 11x6-W 3 11.1 53.18 590.3 10,610 60.3 2309 81.46 3.91
BadAss 11x7-W 3 11.1 53.72 596.3 10,573 70.1 2280 80.42 3.82
BadAss 11x8-W 3 11.1 66.82 741.7 9,750 73.9 1878 66.23 2.53
BadAss 12x6-W 3 11.1 64.24 713.1 9,963 56.6 2520 88.89 3.53
BadAss 12x7-W 3 11.1 76.25 846.4 9,613 63.7 2610 92.06 3.08
GemFan 9x5-F 3 11.1 27.33 303.3 12,169 57.6 1401 49.41 4.62
GemFan 10x6-F 3 11.1 39.35 436.8 11,454 65.1 1887 66.56 4.32
GemFan 11x8-F 3 11.1 67.45 748.7 9,719 73.6 2155 76.03 2.88
MAS 8x6x3 3 11.1 29.05 322.4 12,063 68.5 1352 47.69 4.19
MAS 9x7x3 3 11.1 44.97 499.2 11,116 73.7 1931 68.11 3.87
MAS 10x5x3 3 11.1 40.86 453.6 11,370 53.8 1988 70.12 4.38
MAS 10x7x3 3 11.1 56.44 626.5 10,399 68.9 2350 82.90 3.75
MAS 11x7x3 3 11.1 65.75 729.8 9,809 65.0 2630 92.76 3.60
 
4-cell Li-Po Test Data
Prop Prop Li-Po Input Motor Input Prop Pitch Speed Thrust  Thrust Thrust Eff.
Manf. Size Cells Voltage Amps Watts RPM in MPH Grams Ounces Grams/W
APC 7x5-E 4 14.8 27.39 405.4 16,380 77.6 1219 43.01 3.01
APC 7x5-SP 4 14.8 22.31 330.2 16,786 79.5 1095 38.61 3.31
APC 7x6-E 4 14.8 28.31 419.0 16,304 92.6 1336 47.11 3.19
APC 7x6-SP 4 14.8 25.18 372.7 16,562 94.1 1126 39.70 3.02
APC 7x7-E 4 14.8 34.36 508.5 15,944 105.7 1324 46.70 2.60
APC 7x9-SP 4 14.8 38.83 574.7 15,676 133.6 1065 37.56 1.85
APC 8x4-E 4 14.8 33.06 489.3 16,025 60.7 1699 59.91 3.47
APC 8x6-E 4 14.8 47.15 697.8 15,069 85.6 1945 68.60 2.79
APC 8x8-E 4 14.8 57.44 850.0 14,363 108.8 1826 64.41 2.15
APC 9x4.5-E 4 14.8 47.36 700.9 15,063 64.2 2450 86.41 3.50
APC 9x6-E 4 14.8 54.81 811.2 14,542 82.6 2313 81.60 2.85
APC 10x5-E 4 14.8 64.72 957.9 13,819 65.4 2748 96.92 2.87
APC 10x6-E 4 14.8 70.68 1046.0 13,432 76.3 2820 99.46 2.70
BadAss 10x5-W 4 14.8 57.33 848.5 14,407 68.2 2558 90.22 3.01
BadAss 10x6-W 4 14.8 74.14 1097.3 13,254 75.3 2356 83.12 2.15
GemFan 8x5-F 4 14.8 31.09 460.1 16,412 77.7 1637 57.75 3.56
GemFan 9x5-F 4 14.8 43.04 637.0 15,375 72.8 2241 79.04 3.52
GemFan 10x6-F 4 14.8 60.89 901.2 14,150 80.4 2925 103.18 3.25
MAS 7x4x3 4 14.8 24.18 357.8 17,275 65.4 1267 44.71 3.54
MAS 8x6x3 4 14.8 45.78 677.5 15,201 86.4 2191 77.27 3.23
MAS 9x7x3 4 14.8 68.42 1012.7 13,651 90.5 2973 104.86 2.94
MAS 10x5x3 4 14.8 63.39 938.2 14,092 93.4 3145 110.94 3.35
 
5-cell Li-Po Test Data
Prop Prop Li-Po Input Motor Input Prop Pitch Speed Thrust  Thrust Thrust Eff.
Manf. Size Cells Voltage Amps Watts RPM in MPH Grams Ounces Grams/W
APC 7x4-E 5 18.5 34.74 642.7 20,147 76.3 1803 63.61 2.81
APC 7x4-SP 5 18.5 27.74 513.1 20,717 78.5 1576 55.58 3.07
APC 7x5-E 5 18.5 42.05 778.0 19,541 92.5 1769 62.38 2.27
APC 7x5-SP 5 18.5 32.93 609.1 20,285 96.0 1581 55.78 2.60
APC 7x6-E 5 18.5 43.51 805.0 19,429 110.4 1891 66.70 2.35
APC 7x6-SP 5 18.5 37.09 686.1 19,946 113.3 1668 58.82 2.43
APC 7x7-E 5 18.5 51.20 947.3 18,874 125.1 1849 65.23 1.95
APC 8x4-E 5 18.5 50.57 935.5 18,896 71.6 2383 84.06 2.55
APC 8x6-E 5 18.5 70.59 1305.8 17,563 99.8 2623 92.53 2.01
MAS 7x4x3 5 18.5 33.87 626.6 20,217 76.6 1692 59.68 2.70
MAS 8x6x3 5 18.5 64.49 1193.0 17,901 101.7 3061 107.96 2.57
 
6-cell Li-Po Test Data
Prop Prop Li-Po Input Motor Input Prop Pitch Speed Thrust  Thrust Thrust Eff.
Manf. Size Cells Voltage Amps Watts RPM in MPH Grams Ounces Grams/W
APC 7x4-SP 6 22.2 38.47 853.9 24,054 91.1 2095 73.91 2.45
APC 7x5-SP 6 22.2 45.54 1011.1 23,543 111.5 2119 74.76 2.10
APC 7x6-SP 6 22.2 51.05 1133.2 23,115 131.3 2213 78.05 1.95
MAS 7x4x3 6 22.2 46.07 1022.8 23,496 89.0 2199 77.58 2.15
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)
Notes about Propellers used in the Motor Tests
APC Props with -E on the part number are from the APC Thin Electric Series.  Example:  APC 10x6-E
APC Props with -F on the part number are from the APC Folding Electric Series.  Example:  APC 11x8-F
APC Props with -SF on the part number are from the APC Slow-Fly Electric Series.  Example:  APC 10x4.7-SF
APC Props with -P on the part number are from the APC Pylon Racing Series.  Example:  APC 6.5x5.5-P
APC Props with -SP on the part number are from the APC Sport Glow Series.  Example:  APC 7x6-SP
BadAss Props with -W on the part number are from the BadAss Electric Wood Series.  Example:  BadAss 11x6-W
GemFan Props with -F on the part number are from the GemFan Folding Electric Series.  Example:  GemFan 10x6-F
MAS Props are Master Airscrew 3-Blade Propellers.  Example:  MAS 10x5x3
PLEASE NOTE:
The Data contained in this Prop Chart is based on actual measurements, taken in a controlled test environment, at an altitude of
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
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
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
always test your actual power system with a watt meter before flying your model to make sure that you are not exceeding the 
recommended current and power ratings of the motor being used.  The prop recommendations in this chart assume that the motor
receives adequate cooling throughout its operation.  If your motor is being used inside a cowl or fuselage, you must ensure that
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
more than 80% of the motors maximum recommended current value to ensure safe operation under all conditions.