| BadAss BA-2820-1350 Performance Test Data | |||||||||||||||
| Magnets | Motor Wind | Motor Kv | No-Load Current | Motor Resistance | I Max | P Max (6S) | |||||||||
| 14-Pole | 8-Turn Delta | 1350 RPM/Volt | Io = 2.75 Amps @ 10v | Rm = 0.016 Ohms | 75 Amps | 1665 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 | 3.023 A | 3.250 A | 3.451 A | 3.692 A | 1340 RPM/Volt @ 10V | 0.0156 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 | 7x7-E | 3 | 11.1 | 28.63 | 317.8 | 13,546 | 89.8 | 945 | 33.34 | 2.97 | |||||
| APC | 8x4-E | 3 | 11.1 | 25.90 | 287.5 | 13,693 | 51.9 | 1184 | 41.77 | 4.12 | |||||
| APC | 8x6-E | 3 | 11.1 | 40.68 | 451.6 | 12,923 | 73.4 | 1428 | 50.38 | 3.16 | |||||
| APC | 8x8-E | 3 | 11.1 | 52.05 | 577.8 | 12,327 | 93.4 | 1293 | 45.62 | 2.24 | |||||
| APC | 9x4.5-E | 3 | 11.1 | 36.70 | 407.4 | 13,095 | 55.8 | 1750 | 61.74 | 4.30 | |||||
| APC | 9x5-F | 3 | 11.1 | 31.35 | 348.0 | 13,416 | 63.5 | 1415 | 49.93 | 4.07 | |||||
| APC | 9x6-E | 3 | 11.1 | 43.93 | 487.6 | 12,761 | 72.5 | 1724 | 60.81 | 3.54 | |||||
| APC | 9x7.5-E | 3 | 11.1 | 64.05 | 711.0 | 11,740 | 83.4 | 1787 | 63.05 | 2.51 | |||||
| APC | 9x9-E | 3 | 11.1 | 70.88 | 786.8 | 11,388 | 97.1 | 1730 | 61.01 | 2.20 | |||||
| APC | 10x5-E | 3 | 11.1 | 52.47 | 582.4 | 12,341 | 58.4 | 2126 | 74.97 | 3.65 | |||||
| APC | 10x5.8-F2B | 3 | 11.1 | 56.39 | 625.9 | 12,147 | 66.7 | 2399 | 84.62 | 3.83 | |||||
| APC | 10x6-E | 3 | 11.1 | 58.32 | 647.4 | 12,023 | 68.3 | 2190 | 77.24 | 3.38 | |||||
| APC | 10x6-F | 3 | 11.1 | 46.37 | 514.7 | 12,665 | 72.0 | 2039 | 71.94 | 3.96 | |||||
| APC | 10x7-E | 3 | 11.1 | 65.72 | 729.5 | 11,635 | 77.1 | 2267 | 79.95 | 3.11 | |||||
| APC | 10x8-E | 3 | 11.1 | 71.94 | 798.5 | 11,291 | 85.5 | 2257 | 79.61 | 2.83 | |||||
| APC | 11x5.5-E | 3 | 11.1 | 70.01 | 777.1 | 11,380 | 59.3 | 2836 | 100.05 | 3.65 | |||||
| APC | 11x7-E | 3 | 11.1 | 80.08 | 888.9 | 10,802 | 71.6 | 2834 | 99.97 | 3.19 | |||||
| MAS | 8x6x3 | 3 | 11.1 | 37.21 | 413.1 | 13,053 | 74.2 | 1565 | 55.19 | 3.79 | |||||
| MAS | 9x7x3 | 3 | 11.1 | 56.89 | 631.5 | 12,113 | 80.3 | 2265 | 79.88 | 3.59 | |||||
| MAS | 10x5x3 | 3 | 11.1 | 52.19 | 579.3 | 12,383 | 58.6 | 2344 | 82.69 | 4.05 | |||||
| 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 | 36.68 | 542.8 | 17,877 | 84.6 | 1471 | 51.87 | 2.71 | |||||
| APC | 7x6-E | 4 | 14.8 | 37.93 | 561.3 | 17,800 | 101.1 | 1567 | 55.26 | 2.79 | |||||
| APC | 7x7-E | 4 | 14.8 | 47.66 | 705.3 | 17,224 | 114.2 | 1551 | 54.71 | 2.20 | |||||
| APC | 8x4-E | 4 | 14.8 | 44.23 | 654.7 | 17,413 | 66.0 | 1973 | 69.58 | 3.01 | |||||
| APC | 8x6-E | 4 | 14.8 | 70.35 | 1041.1 | 16,019 | 91.0 | 2199 | 77.56 | 2.11 | |||||
| APC | 9x4.5-E | 4 | 14.8 | 62.51 | 925.1 | 16,350 | 69.7 | 2907 | 102.53 | 3.14 | |||||
| APC | 9x6-E | 4 | 14.8 | 73.18 | 1083.1 | 15,737 | 89.4 | 2665 | 94.01 | 2.46 | |||||
| APC | 10x5-E | 4 | 14.8 | 85.60 | 1266.9 | 14,920 | 70.6 | 3167 | 111.69 | 2.50 | |||||
| MAS | 8x6x3 | 4 | 14.8 | 58.36 | 863.8 | 16,631 | 94.5 | 2577 | 90.91 | 2.98 | |||||
| 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 | 44.99 | 832.3 | 22,079 | 83.6 | 2135 | 75.31 | 2.57 | |||||
| APC | 7x5-E | 5 | 18.5 | 56.08 | 1037.4 | 21,300 | 100.9 | 2101 | 74.12 | 2.03 | |||||
| APC | 7x6-E | 5 | 18.5 | 57.70 | 1067.5 | 21,203 | 120.5 | 2224 | 78.43 | 2.08 | |||||
| APC | 7x7-E | 5 | 18.5 | 70.40 | 1302.3 | 20,431 | 135.4 | 2171 | 76.59 | 1.67 | |||||
| APC | 8x4-E | 5 | 18.5 | 67.42 | 1247.2 | 20,606 | 78.1 | 2796 | 98.61 | 2.24 | |||||
| © 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. | |||||||||||||||