| Cobra C2204/32 Motor Propeller Data | ||||||||||||||
| Motor Wind | Motor Kv | No-Load Current | Motor Resistance | I Max | P Max (2S) | |||||||||
| 32-Turn Delta | 1960 RPM/Volt | Io = 0.58 Amps @ 8v | Rm = 0.102 Ohms | 12 Amps | 90 W | |||||||||
| Outside Diameter | Body Length | Total Shaft Length | Shaft Diameter | Motor Weight | ||||||||||
| 27.0 mm, 1.06 in. | 14.2mm, 0.56 in. | 21.8 mm, 0.86 in. | 3.0 mm, 0.118 in. | 22.5 gm, 0.79 oz | ||||||||||
| Prop | Prop | Input | Motor | Watts | Prop | Pitch | Thrust | Thrust | Thrust Eff. | |||||
| Manf. | Size | Voltage | Amps | Input | RPM | Speed | Grams | Ounces | Grams/W | |||||
| APC | 6x4-E | 7.4 | 6.42 | 47.5 | 11,197 | 42.4 | 254 | 8.96 | 5.34 | |||||
| APC | 6x5.5-E | 7.4 | 8.28 | 61.3 | 10,390 | 54.1 | 239 | 8.43 | 3.90 | |||||
| APC | 7x4-SF | 7.4 | 9.60 | 71.0 | 9,877 | 37.4 | 403 | 14.22 | 5.67 | |||||
| APC | 7x5-SF | 7.4 | 10.79 | 79.8 | 9,337 | 44.2 | 397 | 14.00 | 4.97 | |||||
| APC | 7x6-SF | 7.4 | 12.46 | 92.2 | 8,567 | 48.7 | 367 | 12.95 | 3.98 | |||||
| APC | 8x3.8-SF | 7.4 | 13.04 | 96.5 | 8,276 | 29.8 | 493 | 17.39 | 5.11 | |||||
| GWS | 6x3x3-DD | 7.4 | 5.27 | 39.0 | 11,737 | 33.3 | 257 | 9.07 | 6.59 | |||||
| GWS | 7x3.5-DD | 7.4 | 5.96 | 44.1 | 11,407 | 37.8 | 302 | 10.65 | 6.85 | |||||
| GWS | 7x3.5x3-DD | 7.4 | 7.53 | 55.7 | 10,703 | 35.5 | 347 | 12.24 | 6.23 | |||||
| GWS | 8x4-DD | 7.4 | 10.42 | 77.1 | 9,480 | 35.9 | 470 | 16.58 | 6.10 | |||||
| GWS | 8x4x3-DD | 7.4 | 11.76 | 87.1 | 8,845 | 33.5 | 475 | 16.75 | 5.46 | |||||
| GWS | 8x4.3-SF | 7.4 | 12.36 | 91.5 | 8,476 | 34.5 | 459 | 16.19 | 5.02 | |||||
| Prop | Prop | Input | Motor | Watts | Prop | Pitch | Thrust | Thrust | Thrust Eff. | |||||
| Manf. | Size | Voltage | Amps | Input | RPM | Speed | Grams | Ounces | Grams/W | |||||
| APC | 4.1x4.1-E | 11.1 | 5.24 | 58.1 | 18,424 | 71.5 | 190 | 6.70 | 3.27 | |||||
| APC | 4.5x4.1-E | 11.1 | 6.54 | 72.6 | 17,710 | 68.8 | 257 | 9.07 | 3.54 | |||||
| APC | 4.75x4.25-E | 11.1 | 7.74 | 85.9 | 17,131 | 68.9 | 264 | 9.31 | 3.07 | |||||
| APC | 4.75x4.75-E | 11.1 | 8.42 | 93.4 | 16,752 | 75.4 | 256 | 9.03 | 2.74 | |||||
| APC | 4.75x5.5-E | 11.1 | 9.34 | 103.7 | 16,289 | 84.8 | 234 | 8.25 | 2.26 | |||||
| APC | 5x5-E | 11.1 | 9.38 | 104.2 | 16,267 | 77.0 | 262 | 9.24 | 2.52 | |||||
| APC | 5.25x4.75-E | 11.1 | 10.35 | 114.9 | 15,764 | 70.9 | 361 | 12.73 | 3.14 | |||||
| APC | 5.5x4.5-E | 11.1 | 10.61 | 117.8 | 15,647 | 66.7 | 369 | 13.02 | 3.13 | |||||
| APC | 6x4-E | 11.1 | 11.67 | 129.5 | 15,106 | 57.2 | 484 | 17.07 | 3.74 | |||||
| GWS | 5x3x3-DD | 11.1 | 6.88 | 76.3 | 17,516 | 49.8 | 351 | 12.38 | 4.60 | |||||
| GWS | 5x4.3-DD | 11.1 | 7.02 | 77.9 | 17,486 | 71.2 | 369 | 13.02 | 4.73 | |||||
| GWS | 6x3-DD | 11.1 | 8.64 | 95.9 | 16,672 | 47.4 | 477 | 16.83 | 4.97 | |||||
| GWS | 6x3x3-DD | 11.1 | 9.42 | 104.5 | 16,223 | 46.1 | 499 | 17.60 | 4.77 | |||||
| GWS | 7x3.5-DD | 11.1 | 11.36 | 126.1 | 15,261 | 50.6 | 615 | 21.69 | 4.88 | |||||
| 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. | ||||||||||||||