BadAss BA-2814-870 Performance Test Data
Magnets Motor Wind Motor Kv No-Load Current Motor Resistance I Max P Max (6S)
14-Pole 18-Turn Delta 870 RPM/Volt Io = 1.12 Amps @ 10v Rm = 0.051 Ohms 40 Amps 890 W
 
Stator Outside Diameter Body Length Total Shaft Length Shaft Diameter Motor Weight
12-Slot 35.6 mm, 1.402 in. 34.0 mm, 1.339 in. 55.5 mm, 2.185 in. 5.00 mm, 0.197 in. 115 gm, 4.06 oz
 
Test Data From Input 10.0 V 12.0 V 14.0V 16.0V Measured Kv value Measured Rm Value
Sample Motor Io Value 1.123 A 1.183 A 1.264 A 1.321 A 872 RPM/Volt @ 10V 0.0508 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 9x7.5-E 3 11.1 18.09 200.7 8,303 59.0 874 30.81 4.35
APC 9x9-E 3 11.1 22.14 245.7 8,016 68.3 848 29.92 3.45
APC 10x6-E 3 11.1 17.01 188.8 8,394 47.7 1072 37.80 5.68
APC 10x7-E 3 11.1 19.48 216.3 8,206 54.4 1097 38.70 5.07
APC 10x8-E 3 11.1 21.92 243.3 8,013 60.7 1133 39.96 4.66
APC 10x10-E 3 11.1 28.43 315.5 7,502 71.0 945 33.34 3.00
APC 11x5.5-E 3 11.1 20.43 226.7 8,109 42.2 1346 47.47 5.94
APC 11x7-E 3 11.1 24.29 269.6 7,828 51.9 1428 50.36 5.30
APC 11x8-E 3 11.1 26.97 299.4 7,608 57.6 1334 47.07 4.46
APC 11x8-F 3 11.1 22.31 247.6 7,984 60.5 1324 46.69 5.35
APC 11x8.5-E 3 11.1 28.40 315.2 7,495 60.3 1397 49.29 4.43
APC 11x10-E 3 11.1 32.20 357.5 7,158 67.8 1204 42.47 3.37
APC 12x6-E 3 11.1 26.14 290.1 7,678 43.6 1620 57.14 5.58
APC 12x6.5W-F2B 3 11.1 28.60 317.5 7,104 43.7 1700 59.95 5.35
APC 12x8-E 3 11.1 31.81 353.1 7,189 54.5 1472 51.93 4.17
APC 12x10-E 3 11.1 36.32 403.2 6,772 64.1 1432 50.51 3.55
APC 13x4-E 3 11.1 23.30 258.6 7,910 30.0 1645 58.03 6.36
APC 13x4.5-F2B 3 11.1 25.07 278.3 7,387 31.5 1663 58.66 5.98
APC 13x5.5-E 3 11.1 28.42 315.5 7,532 39.2 1820 64.18 5.77
APC 13x6.5-E 3 11.1 33.65 373.5 7,010 43.1 1876 66.17 5.02
APC 13x6.5-F2B 3 11.1 32.77 363.8 6,680 41.1 1727 60.92 4.75
APC 13x7-F 3 11.1 31.44 349.0 7,226 47.9 1847 65.15 5.29
APC 13x8-E 3 11.1 36.58 406.0 6,788 51.4 1851 65.30 4.56
APC 13x10-F 3 11.1 37.95 421.2 6,645 62.9 1883 66.42 4.47
APC 14x6-E 3 11.1 32.55 361.3 7,111 40.4 2021 71.28 5.59
APC 14x7-E 3 11.1 38.92 432.0 6,512 43.2 2052 72.40 4.75
MAS 9x7x3 3 11.1 17.62 195.6 7,969 52.8 1037 36.58 5.30
MAS 10x5x3 3 11.1 15.87 176.1 8,114 38.4 1069 37.72 6.07
MAS 10x7x3 3 11.1 22.58 250.7 7,588 50.3 1307 46.09 5.21
MAS 11x7x3 3 11.1 26.90 298.6 7,233 47.9 1524 53.75 5.10
MAS 11x8x3 3 11.1 29.12 323.2 7,082 53.7 1545 54.50 4.78
MAS 12x6x3 3 11.1 29.67 329.4 7,039 40.0 1715 60.49 5.21
MAS 12x8x3 3 11.1 37.98 421.6 6,287 47.6 1910 67.38 4.53
                     
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 8x6-E 4 14.8 17.93 265.4 11,303 64.2 1070 37.75 4.03
APC 8x8-E 4 14.8 24.02 355.5 10,770 81.6 965 34.02 2.71
APC 9x5-F 4 14.8 14.14 209.3 11,630 55.1 1031 36.38 4.93
APC 9x6-E 4 14.8 20.05 296.7 11,128 63.2 1285 45.34 4.33
APC 9x7.5-E 4 14.8 29.35 434.4 10,313 73.2 1381 48.70 3.18
APC 9x9-E 4 14.8 33.67 498.3 9,934 84.7 1336 47.12 2.68
APC 10x5-E 4 14.8 23.62 349.5 10,777 51.0 1623 57.25 4.64
APC 10x5.8-F2B 4 14.8 24.49 362.5 10,296 56.6 1669 58.88 4.61
APC 10x6-E 4 14.8 27.01 399.8 10,513 59.7 1705 60.14 4.26
APC 10x6-F 4 14.8 21.92 324.4 10,942 62.2 1521 53.63 4.69
APC 10x7-E 4 14.8 30.57 452.4 10,200 67.6 1705 60.14 3.77
APC 10x8-E 4 14.8 33.59 497.1 9,934 75.3 1766 62.31 3.55
APC 10x10-E 4 14.8 41.60 615.6 9,106 86.2 1398 49.32 2.27
APC 11x5.5-E 4 14.8 32.30 478.1 10,021 52.2 2139 75.44 4.47
APC 11x7-E 4 14.8 37.53 555.4 9,558 63.4 2198 77.52 3.96
APC 11x8-E 4 14.8 41.10 608.3 9,188 69.6 2003 70.65 3.29
APC 11x8-F 4 14.8 34.21 506.3 9,828 74.5 2077 73.25 4.10
APC 11x8.5-E 4 14.8 42.75 632.7 8,971 72.2 2020 71.25 3.19
APC 12x6-E 4 14.8 40.10 593.5 9,281 52.7 2485 87.65 4.19
APC 13x4-E 4 14.8 35.91 531.5 9,672 36.6 2513 88.65 4.73
MAS 9x7x3 4 14.8 27.02 399.9 10,005 66.3 1680 59.25 4.20
MAS 10x5x3 4 14.8 24.41 361.3 10,243 48.5 1737 61.27 4.81
MAS 10x7x3 4 14.8 34.06 504.1 9,409 62.4 2065 72.82 4.10
MAS 11x7x3 4 14.8 39.60 586.1 8,850 58.7 2299 81.09 3.92
 
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 8x4-E 5 18.5 17.53 324.3 14,327 54.3 1314 46.34 4.05
APC 8x6-E 5 18.5 27.59 510.4 13,430 76.3 1507 53.15 2.95
APC 8x8-E 5 18.5 34.88 645.3 12,735 96.5 1379 48.64 2.14
APC 9x4.5-E 5 18.5 25.15 465.3 13,648 58.2 1928 68.01 4.14
APC 9x5-F 5 18.5 20.79 384.5 14,043 66.5 1577 55.62 4.10
APC 9x6-E 5 18.5 29.71 549.6 13,222 75.1 1857 65.49 3.38
APC 9x7.5-E 5 18.5 42.24 781.4 11,952 84.9 1858 65.53 2.38
APC 10x5-E 5 18.5 35.10 649.3 12,708 60.2 2290 80.76 3.53
APC 10x5.8-F2B 5 18.5 35.69 660.2 12,024 66.0 2380 83.97 3.61
APC 10x6-E 5 18.5 38.95 720.6 12,336 70.1 2336 82.39 3.24
APC 10x6-F 5 18.5 31.50 582.7 13,048 74.1 2229 78.64 3.83
MAS 8x6x3 5 18.5 24.87 460.2 13,043 74.1 1719 60.63 3.74
MAS 9x7x3 5 18.5 37.56 694.8 11,860 78.6 2379 83.91 3.42
MAS 10x5x3 5 18.5 34.69 641.7 12,139 57.5 2476 87.35 3.86
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-E 6 22.2 15.28 339.1 17,014 64.4 1261 44.48 3.72
APC 7x5-E 6 22.2 19.26 427.5 16,605 78.6 1226 43.25 2.87
APC 7x6-E 6 22.2 20.02 444.4 16,559 94.1 1343 47.36 3.02
APC 7x7-E 6 22.2 24.98 554.6 16,044 106.4 1308 46.14 2.36
APC 8x4-E 6 22.2 23.30 517.1 16,212 61.4 1678 59.19 3.24
APC 8x6-E 6 22.2 32.78 727.7 15,230 86.5 1909 67.33 2.62
APC 9x4.5-E 6 22.2 32.76 727.2 15,216 64.8 2474 87.28 3.40
2019 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.