BadAss BA-2315-880 Performance Test Data
Magnets Motor Wind Motor Kv No-Load Current Motor Resistance I Max P Max (6S)
14-Pole 20-Turn Delta 880 RPM/Volt Io = 0.70 Amps @ 10v Rm = 0.102 Ohms 24 Amps 530 W
 
Stator Outside Diameter Body Length Total Shaft Length Shaft Diameter Motor Weight
12-Slot 29.1 mm,  1.146 in. 32.6 mm,  1.283 in. 51.0 mm,  2.008 in. 4.00 mm,  0.157 in. 75.2 gm,   2.65 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 0.639 A 0.703 A 0.758 A 0.864 A 883 RPM/Volt @ 10v 0.1024 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 9x6-E 3 11.1 10.95 121.5 8,303 47.2 714 25.19 5.88
APC 9x7.5-E 3 11.1 15.55 172.6 7,613 54.1 740 26.12 4.29
APC 9x9-E 3 11.1 18.38 204.1 7,088 60.4 646 22.78 3.16
APC 10x5-E 3 11.1 12.81 142.1 8,014 37.9 879 31.01 6.18
APC 10x6-E 3 11.1 14.40 159.8 7,783 44.2 922 32.51 5.77
APC 10x6-F 3 11.1 11.84 131.4 8,118 46.1 777 27.42 5.91
APC 10x7-E 3 11.1 16.19 179.7 7,500 49.7 932 32.89 5.19
APC 10x8-E 3 11.1 17.84 198.0 7,150 54.2 896 31.59 4.52
APC 11x5.5-E 3 11.1 16.87 187.2 7,327 38.2 1091 38.49 5.83
APC 11x7-E 3 11.1 19.04 211.3 6,911 45.8 1097 38.71 5.19
APC 11x8-E 3 11.1 20.28 225.1 6,685 50.6 1062 37.45 4.72
APC 11x8-F 3 11.1 18.32 203.3 7,020 53.2 1047 36.92 5.15
APC 11x8.5-E 3 11.1 21.24 235.8 6,491 52.2 1046 36.90 4.44
APC 11x10-E 3 11.1 24.74 274.6 6,158 58.3 866 30.55 3.15
APC 12x6-E 3 11.1 20.10 223.1 6,694 38.0 1226 43.26 5.50
APC 12x8-E 3 11.1 24.21 268.7 6,314 47.8 1109 39.12 4.13
APC 13x4-E 3 11.1 18.63 206.7 6,979 26.4 1284 45.30 6.21
APC 13x5.5-E 3 11.1 21.70 240.9 6,355 33.1 1331 46.95 5.53
MAS 8x6x3 3 11.1 10.01 111.2 8,405 47.8 584 20.61 5.26
MAS 9x7x3 3 11.1 14.88 165.1 7,656 50.8 834 29.41 5.05
MAS 10x5x3 3 11.1 13.60 150.9 7,833 37.1 890 31.38 5.89
MAS 10x7x3 3 11.1 18.12 201.2 7,063 46.8 1017 35.87 5.06
MAS 11x7x3 3 11.1 20.31 225.5 6,588 43.7 1113 39.25 4.94
MAS 11x8x3 3 11.1 22.25 247.0 6,533 49.5 1160 40.93 4.70
 
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 8x4-E 4 14.8 10.78 159.6 11,434 43.3 831 29.31 5.21
APC 8x6-E 4 14.8 15.41 228.1 10,656 60.5 948 33.44 4.16
APC 8x8-E 4 14.8 20.37 301.5 9,741 73.8 835 29.44 2.77
APC 9x4.5-E 4 14.8 15.00 222.0 10,724 45.7 1132 39.94 5.10
APC 9x5-F 4 14.8 13.08 193.6 11,032 52.2 950 33.52 4.91
APC 9x6-E 4 14.8 17.12 253.3 10,340 58.8 1127 39.74 4.45
APC 9x7.5-E 4 14.8 23.04 340.9 9,153 65.0 1091 38.49 3.20
APC 10x5-E 4 14.8 19.72 291.9 9,839 46.6 1373 48.43 4.70
APC 10x6-E 4 14.8 21.34 315.9 9,495 53.9 1384 48.80 4.38
APC 10x6-F 4 14.8 18.01 266.5 10,082 57.3 1225 43.22 4.60
APC 10x7-E 4 14.8 23.71 350.8 8,962 59.4 1333 47.03 3.80
APC 11x5.5-E 4 14.8 25.98 384.6 8,975 46.7 1685 59.44 4.38
MAS 8x6x3 4 14.8 15.42 228.2 10,582 60.1 1011 35.65 4.43
MAS 9x7x3 4 14.8 21.56 319.1 9,346 62.0 1291 45.53 4.05
MAS 10x5x3 4 14.8 20.04 296.5 9,690 45.9 1376 48.54 4.64
 
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 10.90 201.7 14,540 55.1 895 31.57 4.44
APC 7x5-E 5 18.5 13.65 252.5 14,066 66.6 898 31.66 3.56
APC 7x6-E 5 18.5 14.20 262.7 13,969 79.4 974 34.36 3.71
APC 7x7-E 5 18.5 17.03 315.1 13,463 89.2 949 33.47 3.01
APC 8x4-E 5 18.5 15.83 292.8 13,666 51.8 1220 43.02 4.17
APC 8x6-E 5 18.5 22.47 415.6 12,362 70.2 1294 45.63 3.11
APC 9x4.5-E 5 18.5 21.42 396.3 12,525 53.4 1611 56.83 4.07
APC 9x5-F 5 18.5 18.61 344.4 13,072 61.9 1376 48.54 4.00
APC 9x6-E 5 18.5 23.89 441.9 11,925 67.8 1512 53.34 3.42
MAS 7x4x3 5 18.5 11.60 214.6 14,424 54.6 874 30.83 4.07
MAS 8x6x3 5 18.5 21.02 388.9 12,497 71.0 1432 50.52 3.68
 
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 6x5.5-E 6 22.2 10.48 232.7 17,740 92.4 754 26.60 3.24
APC 6x6-E 6 22.2 11.88 263.7 17,496 99.4 767 27.06 2.91
APC 7x4-E 6 22.2 15.27 338.9 16,855 63.8 1263 44.56 3.73
APC 7x5-E 6 22.2 18.81 417.5 16,179 76.6 1217 42.93 2.92
APC 7x6-E 6 22.2 19.34 429.4 16,044 91.2 1312 46.28 3.05
APC 7x7-E 6 22.2 22.85 507.2 15,269 101.2 1238 43.66 2.44
APC 8x4-E 6 22.2 21.48 476.9 15,540 58.9 1605 56.62 3.37
MAS 7x4x3 6 22.2 15.42 342.3 16,761 63.5 1201 42.35 3.51
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.