Scorpion SII-2212-1850 Motor Propeller Data
Motor Wind Motor Kv No-Load Current Motor Resistance I Max P Max (3S)
11-Turn Delta 1850 RPM/Volt Io = 1.31 Amps @ 10v Rm = 0.032 Ohms 22 Amps 230 W
 
Outside Diameter Body Length Total Shaft Length Shaft Diameter Motor Weight
27.9 mm,  1.098in. 23.0 mm,  1.181 in. 49.0 mm,  1.929 in. 2.98 mm,  0.117 in. 58.0 gm,   2.05 oz
 
Prop Prop Input Motor Watts Prop Pitch Thrust  Thrust Thrust Eff.
Manf. Size Voltage Amps Input RPM Speed Grams Ounces Grams/W
APC 6x5.5-E 7.4 10.60 78.4 11,581 60.3 298.9 10.54 3.81
APC 7x4-E 7.4 12.14 89.8 11,247 42.6 509.5 17.97 5.67
APC 7x5-E 7.4 14.97 110.8 10,642 50.4 509.9 17.99 4.60
APC 7x6-E 7.4 15.68 116.1 10,501 59.7 548.8 19.36 4.73
APC 8x4-E 7.4 16.85 124.7 10,268 38.9 668.1 23.57 5.36
APC 8x6-E 7.4 21.75 161.0 9,189 52.2 701.5 24.74 4.36
APC 9x4.5-E 7.4 21.80 161.3 9,231 39.3 847.4 29.89 5.25
APC 9x6-E 7.4 24.39 180.5 8,701 49.4 809.3 28.55 4.48
GWS 7x3.5-DD 7.4 7.74 57.3 12,211 40.5 375.5 13.25 6.55
GWS 7x3.5x3-DD 7.4 9.63 71.2 11,813 39.2 433.2 15.28 6.08
GWS 8x4-DD 7.4 13.65 101.0 10,858 41.1 614.3 21.67 6.08
GWS 8x4x3-DD 7.4 16.26 120.3 10,384 39.3 672 23.70 5.59
GWS 8x6-HD 7.4 20.58 152.3 9,415 53.5 645.3 22.76 4.24
GWS 9x5-DD 7.4 21.18 156.7 9,305 44.1 853.8 30.12 5.45
GWS 9x7.5-HD 7.4 28.92 214.0 7,692 54.6 729.3 25.73 3.41
MAS 7x4x3 7.4 13.84 102.4 10,879 41.2 471 16.61 4.60
MAS 8x6x3 7.4 22.54 166.8 9,029 51.3 704 24.83 4.22
 
Prop Prop Input Motor Watts Prop Pitch Thrust  Thrust Thrust Eff.
Manf. Size Voltage Amps Input RPM Speed Grams Ounces Grams/W
APC 4.75x4.75-E 11.1 9.90 109.9 17,984 80.9 290.9 10.26 2.65
APC 4.75x5.5-E 11.1 11.26 125.0 17,615 91.7 276.1 9.74 2.21
APC 5x5-E 11.1 11.37 126.2 17,582 83.2 305.6 10.78 2.42
APC 5.25x4.75-E 11.1 12.48 138.5 17,323 77.9 430.8 15.20 3.11
APC 5.5x4.5-E 11.1 12.97 143.9 17,188 73.2 444.6 15.68 3.09
APC 6x4-E 11.1 14.51 161.1 16,781 63.6 596.7 21.05 3.70
APC 6x5.5-E 11.1 18.11 201.0 15,910 82.9 566.2 19.97 2.82
APC 7x4-E 11.1 21.82 242.2 15,010 56.9 961.3 33.91 3.97
APC 7x5-E 11.1 26.02 288.9 13,998 66.3 912.9 32.20 3.16
                   
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.