BadAss BA-2315-1800 Performance Test Data
Magnets Motor Wind Motor Kv No-Load Current Motor Resistance I Max P Max (5S)
14-Pole 10-Turn Delta 1800 RPM/Volt Io = 1.98 Amps @ 10v Rm = 0.027 Ohms 44 Amps 810 W
 
Stator Outside Diameter Body Length Total Shaft Length Shaft Diameter Motor Weight
12-Slot 29.1 mm,  1.146 in. 32.6 mm,  1.283 in. 51.0 mm,  2.008 in. 4.00 mm,  0.157 in. 75.2 gm,   2.65 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 1.714 A 1.982 A 2.231 A 2.538 A 1825 RPM/Volt @ 10v 0.0267 Ohms
 
2-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 7x6-E 2 7.4 20.17 149.3 11,736 66.7 660 23.28 4.42
APC 7x6-F 2 7.4 16.91 125.1 11,924 67.8 413 14.57 3.30
APC 7x7-E 2 7.4 24.30 179.8 11,344 75.2 662 23.35 3.68
APC 8x4-E 2 7.4 22.41 165.8 11,526 43.7 825 29.10 4.98
APC 8x4-F 2 7.4 16.51 122.1 11,815 44.8 571 20.15 4.68
APC 8x6-E 2 7.4 31.21 230.9 10,638 60.4 917 32.34 3.97
APC 8x8-E 2 7.4 40.29 298.2 9,691 73.4 792 27.93 2.66
APC 9x4.5-E 2 7.4 30.56 226.2 10,680 45.5 1100 38.80 4.86
APC 9x5-F 2 7.4 26.28 194.5 10,901 51.6 906 31.97 4.66
APC 9x6-E 2 7.4 35.19 260.4 10,244 58.2 1096 38.66 4.21
APC 9x7.5-E 2 7.4 45.59 337.3 9,036 64.2 1040 36.68 3.08
APC 9x9-E 2 7.4 53.41 395.2 8,713 74.3 987 34.80 2.50
APC 10x5-E 2 7.4 39.56 292.8 9,736 46.1 1320 46.56 4.51
APC 10x6-E 2 7.4 42.48 314.4 9,381 53.3 1313 46.31 4.18
APC 10x6-F 2 7.4 35.17 260.3 9,849 56.0 1134 39.99 4.36
APC 10x7-E 2 7.4 48.49 358.8 9,053 60.0 1340 47.28 3.74
MAS 7x4x3 2 7.4 16.93 125.3 12,054 45.7 578 20.37 4.61
MAS 8x6x3 2 7.4 31.38 232.2 10,602 60.2 987 34.80 4.25
MAS 9x7x3 2 7.4 45.11 333.8 9,373 62.1 1301 45.89 3.90
MAS 10x5x3 2 7.4 40.97 303.2 9,536 45.2 1338 47.19 4.41
 
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 6x4-E 3 11.1 18.26 202.7 18,256 69.2 667 23.52 3.29
APC 6x4.3-E 3 11.1 24.91 276.5 17,512 71.3 959 33.83 3.47
APC 6x4.5-E 3 11.1 23.98 266.1 17,749 75.6 958 33.79 3.60
APC 6x5.5-E 3 11.1 24.01 266.5 17,735 92.4 674 23.77 2.53
APC 6x6-E 3 11.1 25.84 286.8 17,661 100.3 756 26.67 2.64
APC 7x4-E 3 11.1 31.65 351.3 16,985 64.3 1252 44.17 3.57
APC 7x4-F 3 11.1 23.19 257.4 17,672 66.9 753 26.56 2.93
APC 7x5-E 3 11.1 38.35 425.6 16,194 76.7 1198 42.27 2.82
APC 7x6-E 3 11.1 39.23 435.5 16,098 91.5 1288 45.44 2.96
APC 7x6-F 3 11.1 31.93 354.5 16,635 94.5 846 29.82 2.39
APC 7x7-E 3 11.1 46.07 511.3 15,257 101.1 1203 42.43 2.35
APC 8x4-E 3 11.1 43.79 486.0 15,538 58.9 1569 55.33 3.23
APC 8x6-E 3 11.1 61.47 682.3 13,905 79.0 1604 56.57 2.35
APC 9x4.5-E 3 11.1 58.84 653.1 13,882 59.2 2120 74.78 3.25
MAS 6x4x3 3 11.1 23.85 264.7 18,395 69.7 769 27.12 2.90
MAS 7x4x3 3 11.1 32.40 359.7 16,903 64.0 1205 42.49 3.35
MAS 8x6x3 3 11.1 56.89 631.5 14,411 81.9 1867 65.84 2.96
 
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 4.75x4.75-E 4 14.8 20.32 300.7 25,029 112.6 549 19.35 1.82
APC 4.75x5.5-E 4 14.8 22.81 337.6 24,684 128.6 517 18.24 1.53
APC 5x4.3-E 4 14.8 26.39 390.5 24,160 98.4 972 34.29 2.49
APC 5x4.5-E 4 14.8 27.90 412.9 24,056 102.5 971 34.26 2.35
APC 5x4.6-E 4 14.8 27.65 409.2 24,068 104.8 1038 36.60 2.54
APC 5x5-E 4 14.8 23.27 344.5 24,584 116.4 575 20.28 1.67
APC 5.25x4.75-E 4 14.8 27.45 406.2 24,079 108.3 811 28.59 2.00
APC 5.25x6.25-E 4 14.8 34.54 511.3 23,224 137.5 761 26.83 1.49
APC 5.5x4.5-E 4 14.8 28.15 416.6 24,028 102.4 861 30.35 2.07
APC 6x4-E 4 14.8 31.87 471.7 23,571 89.3 1142 40.28 2.42
APC 6x4.3-E 4 14.8 40.63 601.4 22,176 90.3 1554 54.83 2.58
APC 6x4.5-E 4 14.8 38.40 568.2 22,560 96.1 1565 55.21 2.75
APC 6x5.5-E 4 14.8 39.20 580.2 22,489 117.1 1086 38.29 1.87
APC 6x6-E 4 14.8 42.32 626.3 22,033 125.2 1194 42.13 1.91
APC 7x4-E 4 14.8 53.68 794.5 20,892 79.1 1952 68.85 2.46
 
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 4.5x4.1-E 5 18.5 21.76 402.6 31,204 121.2 778 27.43 1.93
APC 4.7x4.25-E 5 18.5 26.77 495.2 30,517 122.8 810 28.57 1.64
APC 4.75x4.75-E 5 18.5 30.10 556.9 30,164 135.7 804 28.35 1.44
APC 4.75x5.5-E 5 18.5 32.68 604.6 29,779 155.1 752 26.53 1.24
APC 5x4.3-E 5 18.5 39.13 723.9 28,890 117.6 1404 49.51 1.94
APC 5x4.5-E 5 18.5 42.43 785.0 28,483 121.4 1390 49.02 1.77
APC 5x4.6-E 5 18.5 40.68 752.5 28,636 124.7 1495 52.72 1.99
APC 5x5-E 5 18.5 34.36 635.7 29,579 140.1 850 29.99 1.34
APC 5.25x4.75-E 5 18.5 40.42 747.8 28,769 129.4 1152 40.64 1.54
APC 5.25x6.25-E 5 18.5 49.26 911.2 27,788 164.5 1091 38.50 1.20
APC 5.5x4.5-E 5 18.5 40.98 758.1 28,518 121.5 1238 43.68 1.63
APC 6x4-E 5 18.5 47.58 880.1 27,920 105.8 1611 56.81 1.83
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, 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.