BadAss BA-2820-780 Performance Test Data
Magnets Motor Wind Motor Kv No-Load Current Motor Resistance I Max P Max (6S)
14-Pole 14-Turn Delta 780 RPM/Volt Io = 1.32 Amps @ 10v Rm = 0.039 Ohms 54 Amps 1200 W 
 
Stator Outside Diameter Body Length Total Shaft Length Shaft Diameter Motor Weight
12-Slot 35.6 mm,  1.402 in. 40.0 mm,  1.575 in. 61.5 mm,  2.421 in. 5.00 mm,  0.197 in. 149 gm,   5.26 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 1.317 A 1.405 A 1.456 A 1.559 A 787 RPM/Volt @ 10V 0.0388 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 11x8-E 3 11.1 23.29 258.6 7,452 56.5 1324 46.68 5.12
APC 11x8-F 3 11.1 19.36 214.8 7,663 58.1 1229 43.36 5.72
APC 11x8.5-E 3 11.1 25.18 279.5 7,323 58.9 1356 47.83 4.85
APC 11x10-E 3 11.1 29.12 323.2 7,102 67.3 1229 43.34 3.80
APC 12x6-E 3 11.1 22.91 254.3 7,477 42.5 1575 55.55 6.19
APC 12x6.5W-F2B 3 11.1 27.95 310.2 7,156 44.0 1802 63.58 5.81
APC 12x8-E 3 11.1 28.62 317.6 7,115 53.9 1474 51.99 4.64
APC 12x8.5-F 3 11.1 24.84 275.7 7,387 59.5 1561 55.05 5.66
APC 12x10-E 3 11.1 34.28 380.5 6,829 64.7 1518 53.55 3.99
APC 12x12-E 3 11.1 39.83 442.2 6,545 74.4 1376 48.52 3.11
APC 13x4.5-F2B 3 11.1 24.02 266.6 7,408 31.6 1728 60.94 6.48
APC 13x5.5-E 3 11.1 25.24 280.2 7,331 38.2 1777 62.68 6.34
APC 13x6.5-E 3 11.1 31.35 348.0 7,012 43.2 1960 69.12 5.63
APC 13x6.5-F2B 3 11.1 35.03 388.8 6,916 42.6 1858 65.54 4.78
APC 13x7-F 3 11.1 27.02 299.9 7,250 48.1 1790 63.14 5.97
APC 13x8-E 3 11.1 34.27 380.4 6,825 51.7 1942 68.48 5.10
APC 13x10-E 3 11.1 42.83 475.4 6,338 60.0 1756 61.94 3.69
APC 13x10-F 3 11.1 34.52 383.2 6,841 64.8 1961 69.18 5.12
APC 14x6-E 3 11.1 29.81 330.9 7,069 40.2 2091 73.74 6.32
APC 14x7-E 3 11.1 37.71 418.6 6,635 44.0 2230 78.66 5.33
APC 14x8.5-E 3 11.1 40.69 451.7 6,448 51.9 2250 79.38 4.98
APC 14x10-E 3 11.1 40.64 451.1 6,474 61.3 2234 78.79 4.95
APC 14x10-F 3 11.1 41.66 462.4 6,452 61.1 2268 80.01 4.91
APC 14x12-E 3 11.1 53.83 597.5 5,648 64.2 1729 60.97 2.89
APC 15x4-E 3 11.1 31.47 349.3 6,970 26.4 2256 79.57 6.46
APC 15x6-E 3 11.1 39.86 442.5 6,505 37.0 2479 87.43 5.60
APC 15x7-E 3 11.1 39.96 443.5 6,516 43.2 2492 87.91 5.62
APC 15x8-E 3 11.1 43.42 482.0 6,318 47.9 2458 86.70 5.10
APC 15x10-E 3 11.1 53.70 596.1 5,641 53.4 2404 84.81 4.03
APC 15x12-F 3 11.1 50.58 561.4 5,872 66.7 2566 90.50 4.57
APC 16x7-E 3 11.1 48.41 537.3 5,965 39.5 2808 99.05 5.23
MAS 11x8x3 3 11.1 25.63 284.4 6,988 52.9 1494 52.71 5.25
MAS 12x6x3 3 11.1 26.37 292.7 6,963 39.6 1671 58.95 5.71
MAS 12x8x3 3 11.1 36.04 400.1 6,432 48.7 2027 71.50 5.07
MAS 13x8x3 3 11.1 39.26 435.8 6,263 47.4 2189 77.21 5.02
MAS 14x7x3 3 11.1 44.35 492.3 5,970 39.6 2449 86.37 4.97
MAS 14x9x3 3 11.1 50.20 557.2 5,580 47.6 2552 90.02 4.58
MAS 15x7x3 3 11.1 51.18 568.1 5,437 36.0 2663 93.94 4.69
                     
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 8x8-E 4 14.8 19.98 295.6 10,255 77.7 922 32.52 3.12
APC 9x7.5-E 4 14.8 24.82 367.3 9,980 70.9 1308 46.14 3.56
APC 9x9-E 4 14.8 29.43 435.5 9,719 82.8 1293 45.60 2.97
APC 10x7-E 4 14.8 26.40 390.7 9,897 65.6 1656 58.42 4.24
APC 10x8-E 4 14.8 29.24 432.8 9,717 73.6 1745 61.56 4.03
APC 10x10-E 4 14.8 38.74 573.3 9,207 87.2 1460 51.51 2.55
APC 11x5.5-E 4 14.8 28.67 424.2 9,767 50.9 2102 74.14 4.95
APC 11x7-E 4 14.8 33.54 496.3 9,466 62.7 2176 76.74 4.38
APC 11x8-E 4 14.8 37.20 550.6 9,274 70.3 2109 74.39 3.83
APC 11x8-F 4 14.8 30.29 448.3 9,665 73.2 2010 70.91 4.48
APC 11x8.5-E 4 14.8 40.18 594.6 9,100 73.2 2111 74.46 3.55
APC 11x10-E 4 14.8 45.37 671.4 8,789 83.2 1916 67.58 2.85
APC 12x6-E 4 14.8 36.95 546.8 9,288 52.8 2525 89.07 4.62
APC 12x6.5W-F2B 4 14.8 43.02 636.7 8,905 54.8 2839 100.12 4.46
APC 12x8-E 4 14.8 45.69 676.2 8,757 66.3 2318 81.76 3.43
APC 12x8.5-F 4 14.8 38.59 571.2 9,200 74.1 2504 88.32 4.38
APC 12x10-E 4 14.8 52.72 780.3 8,276 78.4 2278 80.34 2.92
APC 13x4-E 4 14.8 32.45 480.3 9,542 36.1 2576 90.87 5.36
APC 13x4.5-F2B 4 14.8 38.44 568.9 9,186 39.1 2786 98.27 4.90
APC 13x5.5-E 4 14.8 39.30 581.6 9,133 47.6 2843 100.28 4.89
APC 13x6.5-E 4 14.8 49.18 727.9 8,534 52.5 3008 106.10 4.13
APC 13x6.5-F2B 4 14.8 53.94 798.3 8,384 51.6 2791 98.45 3.50
APC 13x7-F 4 14.8 41.99 621.4 8,980 59.5 2850 100.54 4.59
APC 13x8-E 4 14.8 52.79 781.3 8,246 62.5 2870 101.23 3.67
APC 13x10-F 4 14.8 53.27 788.4 8,384 79.4 3051 107.62 3.87
APC 14x6-E 4 14.8 46.16 683.1 8,698 49.4 3227 113.84 4.72
APC 14x7-E 4 14.8 59.76 884.5 8,000 53.0 3405 120.12 3.85
APC 15x4-E 4 14.8 49.35 730.3 8,472 32.1 3516 124.04 4.81
MAS 9x7x3 4 14.8 23.01 340.5 9,620 63.8 1555 54.86 4.57
MAS 10x5x3 4 14.8 20.72 306.6 9,752 46.2 1585 55.92 5.17
MAS 10x7x3 4 14.8 30.23 447.3 9,218 61.1 2011 70.93 4.50
MAS 11x7x3 4 14.8 36.18 535.4 8,917 59.1 2342 82.61 4.37
MAS 11x8x3 4 14.8 39.29 581.4 8,709 66.0 2352 82.96 4.05
MAS 12x6x3 4 14.8 40.25 595.7 8,660 49.2 2653 93.59 4.45
MAS 12x8x3 4 14.8 53.16 786.7 7,861 59.6 3057 107.84 3.89
 
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 8x6-E 5 18.5 22.92 424.0 12,792 72.7 1422 50.14 3.35
APC 8x8-E 5 18.5 30.25 559.7 12,327 93.4 1355 47.78 2.42
APC 9x6-E 5 18.5 25.01 462.6 12,660 71.9 1726 60.88 3.73
APC 9x7.5-E 5 18.5 37.49 693.5 11,887 84.4 1884 66.46 2.72
APC 9x9-E 5 18.5 42.31 782.8 11,565 98.6 1845 65.07 2.36
APC 10x5-E 5 18.5 29.81 551.4 12,366 58.6 2174 76.69 3.94
APC 10x5.8-F2B 5 18.5 32.86 608.0 12,148 66.7 2472 87.20 4.07
APC 10x6-E 5 18.5 33.62 621.9 12,107 68.8 2294 80.92 3.69
APC 10x6-F 5 18.5 26.37 487.8 12,558 71.4 2011 70.94 4.12
APC 10x7-E 5 18.5 38.95 720.6 11,781 78.1 2387 84.21 3.31
APC 10x8-E 5 18.5 43.01 795.8 11,514 87.2 2410 85.01 3.03
APC 10x10-E 5 18.5 53.62 991.9 10,760 101.9 2031 71.64 2.05
APC 11x5.5-E 5 18.5 41.97 776.5 11,582 60.3 3026 106.74 3.90
APC 11x7-E 5 18.5 49.11 908.6 11,069 73.4 3057 107.83 3.36
APC 11x8-E 5 18.5 53.36 987.1 10,748 81.4 2832 99.88 2.87
APC 11x8-F 5 18.5 43.45 803.9 11,480 87.0 2904 102.42 3.61
APC 11x8.5-E 5 18.5 56.50 1045.3 10,477 84.3 2799 98.73 2.68
APC 12x6-E 5 18.5 53.05 981.4 10,735 61.0 3546 125.08 3.61
APC 13x4-E 5 18.5 47.25 874.1 11,220 42.5 3714 130.99 4.25
APC 13x4.5-F2B 5 18.5 54.60 1010.0 10,565 45.0 3851 135.83 3.81
MAS 8x6x3 5 18.5 20.85 385.8 12,339 70.1 1562 55.10 4.05
MAS 9x7x3 5 18.5 33.37 617.3 11,585 76.8 2331 82.24 3.78
MAS 10x5x3 5 18.5 29.85 552.3 11,792 55.8 2367 83.50 4.29
MAS 10x7x3 5 18.5 42.78 791.4 11,004 72.9 2895 102.11 3.66
MAS 11x7x3 5 18.5 50.15 927.8 10,492 69.5 3277 115.58 3.53
MAS 11x8x3 5 18.5 53.84 996.1 10,159 77.0 3196 112.72 3.21
MAS 12x6x3 5 18.5 56.04 1036.6 10,162 57.7 3721 131.24 3.59
 
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 8x4-E 6 22.2 20.00 444.1 15,607 59.1 1610 56.78 3.62
APC 8x6-E 6 22.2 33.02 733.1 14,759 83.9 1907 67.27 2.60
APC 8x8-E 6 22.2 41.75 926.9 14,190 107.5 1796 63.35 1.94
APC 9x4.5-E 6 22.2 28.78 638.8 15,036 64.1 2426 85.57 3.80
APC 9x6-E 6 22.2 34.91 774.9 14,639 83.2 2329 82.14 3.00
APC 9x7.5-E 6 22.2 51.60 1145.6 13,486 95.8 2432 85.79 2.12
APC 9x9-E 6 22.2 56.83 1261.7 13,110 111.7 2400 84.67 1.90
APC 10x5-E 6 22.2 41.90 930.2 14,188 67.2 2889 101.92 3.11
APC 10x5.8-F2B 6 22.2 46.22 1026.2 13,847 76.1 3216 113.45 3.13
APC 10x6-E 6 22.2 46.31 1028.1 13,852 78.7 3015 106.34 2.93
APC 10x7-E 6 22.2 53.20 1181.1 13,355 88.5 3065 108.10 2.59
APC 11x5.5-E 6 22.2 57.94 1286.3 12,996 67.7 3892 137.29 3.03
MAS 8x6x3 6 22.2 28.35 629.3 14,372 81.7 2153 75.94 3.42
MAS 9x7x3 6 22.2 44.49 987.6 13,332 88.4 3126 110.25 3.16
MAS 10x5x3 6 22.2 40.24 893.4 13,631 64.5 3245 114.46 3.63
MAS 10x7x3 6 22.2 55.97 1242.6 12,445 82.5 3732 131.63 3.00
© 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.