BadAss BA-4520-830 Performance Test Data
Magnets Motor Wind Motor Kv No-Load Current Motor Resistance I Max P Max (6S)
14-Pole 8-Turn Delta 830 RPM/Volt Io = 4.95 Amps @ 10v Rm = 0.009 Ohms 110 Amps 2440 W 
 
Stator Outside Diameter Body Length Total Shaft Length Shaft Diameter Motor Weight
12-Slot 55.0 mm,  2.165 in. 52.3 mm,  2.059 in. 75.0 mm,  2.953 in. 8.00 mm,  0.315 in. 396 gm,   13.96 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 4.085 A 4.948 A 5.180 A 5.789 A 819 RPM/Volt @ 10V 0.0087 Ohms
 
4-cell Li-Po Test Data
Prop Prop Li-Po Input Motor Watts Prop Pitch Thrust  Thrust Thrust Eff.
Manf. Size Cells Voltage Amps Input RPM Speed Grams Ounces Grams/W
APC 9x9-E 4 14.8 45.61 675.0 11,114 94.7 1631 57.53 2.42
APC 10x8-E 4 14.8 46.90 694.0 11,085 84.0 2071 73.05 2.98
APC 10x10-E 4 14.8 62.35 922.8 10,725 101.6 1957 69.03 2.12
APC 11x5.5-E 4 14.8 46.15 683.0 11,108 57.9 2716 95.80 3.98
APC 11x7-E 4 14.8 55.12 815.7 10,900 72.3 2903 102.40 3.56
APC 11x8-E 4 14.8 62.05 918.3 10,815 81.9 2781 98.10 3.03
APC 11x8.5-E 4 14.8 67.57 1000.1 10,680 86.0 2805 98.94 2.80
APC 11x10-E 4 14.8 76.51 1132.3 10,481 99.3 2643 93.23 2.33
APC 12x6-E 4 14.8 64.78 958.7 10,755 61.1 3544 125.01 3.70
APC 12x8-E 4 14.8 79.96 1183.3 10,480 79.4 3239 114.25 2.74
APC 12x10-E 4 14.8 99.51 1472.7 10,114 95.8 3375 119.05 2.29
APC 12x12-E 4 14.8 102.29 1513.9 10,042 114.1 3169 111.78 2.09
APC 13x4-E 4 14.8 52.22 772.8 10,959 41.5 3450 121.70 4.46
APC 13x5.5-E 4 14.8 66.18 979.5 10,719 55.8 4009 141.41 4.09
APC 13x6.5-E 4 14.8 95.84 1418.5 10,199 62.8 4153 146.49 2.93
APC 13x8-E 4 14.8 100.34 1485.1 10,108 76.6 4375 154.32 2.95
APC 14x6-E 4 14.8 82.36 1218.9 10,425 59.2 4797 169.21 3.94
APC 14x7-E 4 14.8 120.13 1777.9 9,733 64.5 4987 175.91 2.80
BadAss 11x7-EW 4 14.8 43.48 643.4 11,073 73.4 2416 85.22 3.75
BadAss 11x8-EW 4 14.8 57.61 852.6 10,830 82.0 2216 78.17 2.60
BadAss 12x6-EW 4 14.8 54.00 799.1 10,900 61.9 2912 102.72 3.64
BadAss 12x7-EW 4 14.8 65.95 976.1 10,715 71.0 3134 110.55 3.21
BadAss 12x8-EW 4 14.8 77.46 1146.3 10,445 79.1 2814 99.26 2.45
BadAss 13x6-EW 4 14.8 65.71 972.5 10,725 60.9 3785 133.51 3.89
BadAss 13x8-EW 4 14.8 93.54 1384.4 10,163 77.0 3670 129.46 2.65
BadAss 14x6-EW 4 14.8 90.05 1332.7 10,250 58.2 4558 160.78 3.42
BadAss 14x8-EW 4 14.8 106.30 1573.2 9,937 75.3 5081 179.23 3.23
BadAss 15x6-EW 4 14.8 111.97 1657.2 9,779 55.6 5658 199.58 3.41
MAS 10x7x3 4 14.8 45.32 670.7 11,050 73.2 2572 90.72 3.83
MAS 11x7x3 4 14.8 55.66 823.8 10,883 72.1 3119 110.02 3.79
MAS 11x8x3 4 14.8 60.95 902.1 10,753 81.5 3248 114.57 3.60
MAS 12x6x3 4 14.8 63.49 939.7 10,693 60.8 3622 127.76 3.85
MAS 12x8x3 4 14.8 91.25 1350.5 10,224 77.5 4655 164.20 3.45
MAS 13x8x3 4 14.8 103.31 1529.0 10,012 75.8 5164 182.15 3.38
 
5-cell Li-Po Test Data
Prop Prop Li-Po Input Motor Watts Prop Pitch Thrust  Thrust Thrust Eff.
Manf. Size Cells Voltage Amps Input RPM Speed Grams Ounces Grams/W
APC 9x7.5-E 5 18.5 64.54 1194.1 13,537 96.1 2332 82.26 1.95
APC 9x9-E 5 18.5 68.82 1273.1 13,500 115.1 2412 85.08 1.89
APC 10x5-E 5 18.5 48.31 893.8 13,945 66.0 2662 93.90 2.98
APC 10x6-E 5 18.5 53.17 983.7 13,819 78.5 2784 98.20 2.83
APC 10x7-E 5 18.5 64.53 1193.8 13,540 89.8 3020 106.53 2.53
APC 10x8-E 5 18.5 73.72 1363.8 13,384 101.4 2996 105.68 2.20
APC 10x10-E 5 18.5 93.56 1730.9 12,994 123.0 2852 100.60 1.65
APC 11x5.5-E 5 18.5 76.29 1411.3 13,333 69.4 3866 136.37 2.74
APC 11x7-E 5 18.5 90.13 1667.5 13,080 86.7 4097 144.52 2.46
APC 11x8-E 5 18.5 99.93 1848.7 12,841 97.3 3910 137.92 2.11
APC 11x8.5-E 5 18.5 106.94 1978.4 12,774 102.8 4042 142.58 2.04
APC 11x10-E 5 18.5 116.24 2150.4 12,500 118.4 3701 130.55 1.72
APC 12x6-E 5 18.5 106.52 1970.7 12,764 72.5 4903 172.95 2.49
BadAss 10x6-EW 5 18.5 53.49 989.5 13,785 78.3 2424 85.50 2.45
BadAss 10x7-EW 5 18.5 58.09 1074.6 13,674 90.6 2366 83.46 2.20
BadAss 10x8-EW 5 18.5 66.32 1226.8 13,563 102.8 2683 94.64 2.19
BadAss 11x5-EW 5 18.5 55.22 1021.6 13,761 65.2 3181 112.21 3.11
BadAss 11x6-EW 5 18.5 64.91 1200.8 13,604 77.3 3643 128.50 3.03
BadAss 11x7-EW 5 18.5 66.98 1239.1 13,550 89.8 3508 123.74 2.83
BadAss 11x8-EW 5 18.5 84.83 1569.3 13,198 100.0 3274 115.49 2.09
BadAss 12x6-EW 5 18.5 84.95 1571.6 13,191 74.9 4092 144.34 2.60
BadAss 12x7-EW 5 18.5 99.50 1840.7 12,852 85.2 4363 153.90 2.37
BadAss 12x8-EW 5 18.5 113.22 2094.6 12,567 95.2 4036 142.37 1.93
BadAss 13x6-EW 5 18.5 98.10 1814.8 12,875 73.2 5499 193.97 3.03
MAS 9x7x3 5 18.5 49.47 915.2 13,917 92.3 2913 102.75 3.18
MAS 10x5x3 5 18.5 45.42 840.2 14,016 66.4 2984 105.26 3.55
MAS 10x7x3 5 18.5 67.18 1242.8 13,547 89.8 3924 138.42 3.16
MAS 11x7x3 5 18.5 82.64 1528.8 13,222 87.6 4677 164.98 3.06
MAS 12x6x3 5 18.5 95.04 1758.2 12,957 73.6 5479 193.27 3.12
 
6-cell Li-Po Test Data
Prop Prop Li-Po Input Motor Watts Prop Pitch Thrust  Thrust Thrust Eff.
Manf. Size Cells Voltage Amps Input RPM Speed Grams Ounces Grams/W
APC 9x7.5-E 6 22.2 95.08 2110.8 15,776 112.0 3140 110.76 1.49
APC 9x9-E 6 22.2 97.50 2164.5 15,709 133.9 3216 113.44 1.49
APC 10x5-E 6 22.2 69.45 1541.9 16,250 76.9 3613 127.44 2.34
APC 10x6-E 6 22.2 76.96 1708.4 16,063 91.3 3828 135.03 2.24
APC 10x7-E 6 22.2 96.79 2148.8 15,805 104.8 4106 144.83 1.91
APC 10x8-E 6 22.2 107.53 2387.2 15,588 118.1 4093 144.38 1.71
BadAss 10x5-E 6 22.2 57.42 1274.7 16,436 77.8 3066 108.15 2.41
BadAss 10x6-E 6 22.2 73.31 1627.5 16,108 91.5 3296 116.26 2.03
BadAss 10x7-E 6 22.2 79.76 1770.7 15,980 105.9 3212 113.30 1.81
BadAss 10x8-E 6 22.2 91.52 2031.7 15,838 120.0 3627 127.94 1.79
BadAss 11x5-EW 6 22.2 79.79 1771.4 15,988 75.7 4161 146.77 2.35
BadAss 11x6-EW 6 22.2 93.43 2074.2 15,805 89.8 4625 163.14 2.23
BadAss 11x7-EW 6 22.2 96.19 2135.5 15,735 104.3 4531 159.83 2.12
BadAss 11x8-EW 6 22.2 119.84 2660.4 15,339 116.2 4460 157.32 1.68
MAS 9x7x3 6 22.2 66.91 1485.4 16,234 107.6 3888 137.15 2.62
MAS 10x5x3 6 22.2 62.13 1379.2 16,350 77.4 4172 147.16 3.02
MAS 10x7x3 6 22.2 94.79 2104.4 15,777 104.6 5079 179.16 2.41
MAS 11x7x3 6 22.2 114.32 2537.9 15,324 101.6 6052 213.48 2.38
                     
                     
© 2021 Innov8tive Designs, Inc. 
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. 
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.