BadAss BA-2305-1960 Performance Test Data
Magnets Motor Wind Motor Kv No-Load Current Motor Resistance I Max P Max (4S)
14-Pole 28-Turn Delta 1960 RPM/Volt Io = 0.83 Amps @ 10v Rm = 0.084 Ohms 20 Amps 300 W
 
Stator Outside Diameter Body Length Total Shaft Length Shaft Diameter Motor Weight
12-Slot 29.1 mm,  1.146 in. 22.6 mm,  0.890 in. 41.0 mm,  1.614 in. 4.00 mm,  0.157 in. 40.6 gm,   1.43 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 0.727 A 0.831 A 1.098 A 1.252 A 1958 RPM/Volt @ 10v 0.0839 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 5x4.6-E 2 7.4 7.63 56.4 12,560 54.7 274 9.66 4.85
APC 6x4-E 2 7.4 8.38 62.0 12,350 46.8 301 10.60 4.85
APC 6x4.3-E 2 7.4 11.24 83.2 11,595 47.2 418 14.74 5.02
APC 6x4.5-E 2 7.4 10.92 80.8 11,684 49.8 417 14.70 5.16
APC 6x5.5-E 2 7.4 10.97 81.2 11,659 60.7 295 10.42 3.64
APC 6x6-E 2 7.4 11.11 82.2 11,630 66.1 340 12.00 4.14
APC 7x4-E 2 7.4 12.78 94.6 11,155 42.3 502 17.70 5.30
APC 7x4-SF 2 7.4 13.15 97.3 11,044 41.8 487 17.17 5.00
APC 7x5-E 2 7.4 15.20 112.5 10,416 49.3 476 16.78 4.23
APC 7x5-SF 2 7.4 15.02 111.2 10,490 49.7 495 17.45 4.45
APC 7x6-E 2 7.4 15.73 116.4 10,236 58.2 497 17.54 4.27
APC 7x6-SF 2 7.4 17.22 127.4 9,777 55.6 458 16.15 3.59
APC 7x7-E 2 7.4 17.91 132.5 9,521 63.1 475 16.75 3.58
APC 8x3.8-SF 2 7.4 18.34 135.7 9,364 33.7 624 22.01 4.60
APC 8x4-E 2 7.4 16.79 124.3 9,899 37.5 602 21.23 4.84
APC 8x4.7-SF 2 7.4 19.16 141.8 8,989 40.0 637 22.47 4.49
APC 8x6-E 2 7.4 21.37 158.1 8,716 49.5 563 19.86 3.56
 
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 4.7x4.25-E 3 11.1 9.77 108.4 18,859 75.9 310 10.95 2.86
APC 4.75x4.75-E 3 11.1 10.83 120.2 18,554 83.5 308 10.85 2.56
APC 4.75x5.5-E 3 11.1 12.22 135.6 18,101 94.3 283 9.98 2.09
APC 5x4.3-E 3 11.1 13.60 150.9 17,657 71.9 513 18.09 3.40
APC 5x4.5-E 3 11.1 14.07 156.2 17,536 74.7 510 17.99 3.27
APC 5x4.6-E 3 11.1 14.28 158.5 17,465 76.1 541 19.09 3.42
APC 5x5-E 3 11.1 12.47 138.4 18,023 85.3 320 11.29 2.31
APC 5.25x4.75-E 3 11.1 13.91 154.4 17,601 79.2 442 15.58 2.86
APC 5.25x6.25-E 3 11.1 17.52 194.4 16,417 97.2 392 13.84 2.02
APC 5.5x4.5-E 3 11.1 14.20 157.6 17,502 74.6 459 16.20 2.91
APC 6x4-E 3 11.1 15.73 174.6 16,992 64.4 600 21.16 3.44
APC 6x4.3-E 3 11.1 19.93 221.2 15,506 63.1 751 26.47 3.39
APC 6x4.5-E 3 11.1 19.39 215.2 15,684 66.8 758 26.73 3.52
APC 6x5.5-E 3 11.1 19.38 215.2 15,703 81.8 543 19.16 2.52
APC 6x6-E 3 11.1 19.92 221.1 15,540 88.3 610 21.53 2.76
APC 7x4-E 3 11.1 23.34 259.1 14,788 56.0 870 30.69 3.36
 
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 4x3.3-E 4 14.8 10.15 150.2 26,188 81.8 451 15.92 3.00
APC 4x4.5-E 4 14.8 13.59 201.1 25,095 106.9 483 17.02 2.40
APC 4.1x4.1-E 4 14.8 10.72 158.6 26,005 101.0 377 13.31 2.38
APC 4.5x4.1-E 4 14.8 13.56 200.6 25,107 97.5 502 17.70 2.50
APC 4.7x4.25-E 4 14.8 16.68 246.8 24,085 96.9 513 18.11 2.08
APC 4.75x4.75-E 4 14.8 18.16 268.8 23,527 105.8 495 17.46 1.84
APC 4.75x5.5-E 4 14.8 19.97 295.6 22,813 118.8 453 15.96 1.53
APC 5x4.3-E 4 14.8 21.15 313.0 21,988 89.5 803 28.31 2.56
APC 5x5-E 4 14.8 20.71 306.5 22,920 108.5 516 18.19 1.68
APC 5.25x4.75-E 4 14.8 22.04 326.2 21,845 98.3 688 24.25 2.11
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.