Cobra C3510/24 Motor Propeller Data
Motor Wind Motor Kv No-Load Current Motor Resistance I Max P Max (4S)
24-Turn Delta 820 RPM/Volt Io = 0.81 Amps @ 14v Rm = 0.053 Ohms 26 Amps 380 W 
 
Outside Diameter Body Length Total Shaft Length Shaft Diameter Motor Weight
43.0 mm,  1.69 in. 36.0 mm,  1.42 in. 58.0 mm,  2.28 in. 5.00 mm,  0.197 in. 141 gm,   4.97 oz
 
Prop Prop Input Motor Watts Prop Pitch Thrust  Thrust Thrust Eff.
Manf. Size Voltage Amps Input RPM Speed Grams Ounces Grams/W
APC 9x4.7-SF 11.1 8.59 95.4 8,011 35.7 686 24.20 7.19
APC 9x6-SF 11.1 15.50 172.1 7,274 41.3 875 30.86 5.09
APC 9x7.5-E 11.1 13.41 148.8 7,492 53.2 713 25.15 4.79
APC 9x7.5-SF 11.1 17.80 197.5 7,022 49.9 813 28.68 4.12
APC 9x9-E 11.1 16.36 181.6 7,201 61.4 666 23.49 3.67
APC 10x3.8-SF 11.1 13.84 153.6 7,450 26.8 1003 35.38 6.53
APC 10x4.7-SF 11.1 14.81 164.4 7,354 32.7 1034 36.47 6.29
APC 10x6-E 11.1 12.04 133.6 7,594 43.1 879 31.01 6.58
APC 10x7-E 11.1 13.75 152.6 7,411 49.1 927 32.70 6.07
APC 10x7-SF 11.1 20.52 227.8 6,807 45.1 1124 39.65 4.93
APC 10x10-E 11.1 20.52 227.7 6,790 64.3 797 28.11 3.50
APC 11x3.8-SF 11.1 15.47 171.7 7,277 26.2 1140 40.21 6.64
APC 11x4.7-SF 11.1 18.55 205.9 6,978 31.1 1276 45.01 6.20
APC 11x5.5-E 11.1 14.57 161.8 7,357 38.3 1087 38.34 6.72
APC 11x7-E 11.1 17.59 195.2 7,079 46.9 1161 40.95 5.95
APC 11x7-SF 11.1 25.19 279.7 6,367 42.2 1408 49.67 5.03
APC 11x8-E 11.1 19.37 215.0 6,902 52.3 1085 38.27 5.05
APC 11x8.5-E 11.1 19.95 221.4 6,797 54.7 1139 40.18 5.14
APC 11x10-E 11.1 23.87 264.9 6,485 61.4 1013 35.73 3.82
APC 12x3.8-SF 11.1 22.69 251.8 6,580 23.7 1496 52.77 5.94
APC 12x6-E 11.1 18.67 207.2 6,935 39.4 1319 46.53 6.36
APC 12x8-E 11.1 23.45 260.3 6,522 49.4 1198 42.26 4.60
APC 13x4-E 11.1 15.63 173.5 7,265 27.5 1268 44.73 7.31
APC 13x4.7-SF 11.1 28.13 312.2 6,086 27.1 1715 60.49 5.49
APC 13x6.5-E 11.1 25.04 277.9 6,384 39.3 1596 56.30 5.74
APC 13x8-E 11.1 26.78 297.2 6,224 47.2 1569 55.34 5.28
APC 15x4-E 11.1 24.87 276.0 6,386 24.2 1814 63.99 6.57
MAS 8x6x3 11.1 8.58 95.2 8,010 45.5 537 18.94 5.64
MAS 9x7x3 11.1 13.07 145.1 7,531 49.9 822 28.99 5.67
MAS 10x5x3 11.1 11.54 128.0 7,659 36.3 861 30.37 6.72
MAS 10x7x3 11.1 16.49 183.0 7,208 47.8 1084 38.24 5.92
MAS 11x7x3 11.1 19.40 215.3 6,876 45.6 1259 44.41 5.85
MAS 11x8x3 11.1 21.18 235.1 6,710 50.8 1316 46.42 5.60
MAS 12x6x3 11.1 21.53 239.0 6,709 38.1 1418 50.02 5.93
MAS 12x8x3 11.1 28.60 317.5 6,044 45.8 1643 57.95 5.18
 
Prop Prop Input Motor Watts Prop Pitch Thrust  Thrust Thrust Eff.
Manf. Size Voltage Amps Input RPM Speed Grams Ounces Grams/W
APC 8x6-E 14.8 13.27 196.5 10,189 57.9 888 31.32 4.52
APC 8x8-E 14.8 17.46 258.4 9,704 73.5 810 28.57 3.13
APC 9x4.5-E 14.8 12.29 181.9 10,257 43.7 1047 36.93 5.76
APC 9x6-E 14.8 14.52 214.9 10,033 57.0 1054 37.18 4.90
APC 9x7.5-E 14.8 21.49 318.0 9,281 65.9 1116 39.37 3.51
APC 9x9-E 14.8 24.40 361.1 8,975 76.5 1077 37.99 2.98
APC 10x5-E 14.8 17.42 257.8 9,665 45.8 1332 46.98 5.17
APC 10x6-E 14.8 18.73 277.1 9,521 54.1 1409 49.70 5.08
APC 10x7-E 14.8 21.60 319.6 9,265 61.4 1488 52.49 4.66
APC 11x5.5-E 14.8 23.32 345.2 9,074 47.3 1729 60.99 5.01
APC 11x7-E 14.8 27.45 406.3 8,661 57.4 1798 63.42 4.43
APC 12x6-E 14.8 29.85 441.7 8,426 47.9 2065 72.84 4.67
APC 13x4-E 14.8 23.78 351.9 9,027 34.2 2011 70.94 5.71
MAS 8x6x3 14.8 12.92 191.2 10,228 58.1 955 33.69 4.99
MAS 9x7x3 14.8 19.82 293.3 9,454 62.7 1392 49.10 4.75
MAS 10x5x3 14.8 17.80 263.5 9,660 45.7 1420 50.09 5.39
MAS 10x7x3 14.8 24.93 369.0 8,956 59.4 1713 60.42 4.64
 
Prop Prop Input Motor Watts Prop Pitch Thrust  Thrust Thrust Eff.
Manf. Size Voltage Amps Input RPM Speed Grams Ounces Grams/W
APC 7x6-E 18.5 11.19 207.0 13,106 74.5 852 30.05 4.12
APC 8x4-E 18.5 12.63 233.7 12,913 48.9 1091 38.48 4.67
APC 8x6-E 18.5 19.56 361.9 12,024 68.3 1244 43.88 3.44
APC 8x8-E 18.5 25.36 469.2 11,373 86.2 1130 39.86 2.41
APC 9x4.5-E 18.5 18.00 332.9 12,226 52.1 1555 54.85 4.67
APC 9x6-E 18.5 20.62 381.5 11,913 67.7 1488 52.49 3.90
APC 10x5-E 18.5 25.07 463.9 11,395 54.0 1841 64.94 3.97
APC 10x6-E 18.5 26.41 488.5 11,193 63.6 1965 69.31 4.02
MAS 8x6x3 18.5 17.98 332.6 12,226 69.5 1421 50.12 4.27
MAS 9x7x3 18.5 27.33 505.6 11,156 74.0 1953 68.89 3.86
MAS 10x5x3 18.5 24.55 454.2 11,449 54.2 2025 71.43 4.46
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.  The test voltages used are based on a properly sized Li-Po battery for the current draw of the motor being tested.  If you are using a larger than normal capacity battery, or a very high C-Rated battery, your actual voltages will be higher than those shown in this chart, and this will result in higer current draw for each prop used.  You should always test your power system with a watt meter whenever a prop is used to ensure that you are not exceeding the recommended rating of the motor being used.  The prop recommendations in this chart are based on the motor receiving adequate cooling throughout its operation.  If your motor is being used inside a cowl, you must provide adequate cooling to the motor and make sure that the motor is not getting too hot during operation.