Cobra C-5330-22 205Kv Motor Propeller Data
	Magnets	Motor Wind		Motor Kv		No-Load Current		Motor Resistance		I Max	P Max (12S)
	14-Pole	22-Turn Delta		205 RPM/Volt		Io = 1.55 Amps @ 20v		Rm =  0.034 Ohms		55 Amps	2440 W
	Stator	Outside Diameter		Body Length		Total Shaft Length		Shaft Diameter		Motor Weight
	12-Slot	63.0 mm,  2.48 in.		60.5 mm,  2.38 in.		94.3 mm,  3.71 in.		8.00 mm,  0.315 in.		649 grams, 22.89 oz.
	Test Data From		Input	16.0 V	20.0 V	24.0V	28.0V	Measured Kv value		Measured Rm Value
	Sample Motor		Io Value	1.422 A	1.545 A	1.682 A	1.811 A	212.5 RPM/Volt @ 20V		0.0337 Ohms
	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	15x10-E	10	37.0	26.23	970.6	7,034	66.6	3,668	129.38	3.78
	APC	16x8-E	10	37.0	27.38	1013.1	6,871	52.1	4,259	150.23	4.20
	APC	16x10-E	10	37.0	31.59	1168.9	6,900	65.3	4,444	156.76	3.80
	APC	16x12-E	10	37.0	37.65	1393.2	6,784	77.1	4,088	144.20	2.93
	APC	17x8-E	10	37.0	30.98	1146.2	6,916	52.4	5,008	176.65	4.37
	APC	17x10-E	10	37.0	37.51	1387.8	6,783	64.2	5,275	186.07	3.80
	APC	17x12-E	10	37.0	42.09	1557.5	6,692	76.0	5,193	183.18	3.33
	APC	18x8-E	10	37.0	30.82	1140.3	6,913	52.4	5,892	207.83	5.17
	APC	18x10-E	10	37.0	37.77	1397.3	6,773	64.1	6,140	216.58	4.39
	APC	18x12-E	10	37.0	54.07	2000.6	6,481	73.6	6,099	215.13	3.05
	APC	19x8-E	10	37.0	46.34	1714.5	6,617	50.1	7,142	251.92	4.17
	APC	19x10-E	10	37.0	43.99	1627.5	6,658	63.0	7,238	255.31	4.45
	APC	19x12-E	10	37.0	52.48	1941.8	6,500	73.9	7,482	263.92	3.85
	APC	20x8-E	10	37.0	46.52	1721.2	6,600	50.0	7,943	280.18	4.61
	APC	20x10-E	10	37.0	55.48	2052.8	6,441	61.0	8,438	297.64	4.11
	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	15x8-E	12	44.4	23.15	1027.9	8,329	63.1	4,266	150.48	4.15
	APC	15x10-E	12	44.4	38.34	1702.4	8,133	77.0	4,904	172.98	2.88
	APC	16x8-E	12	44.4	42.46	1885.4	8,045	60.9	5,870	207.06	3.11
	APC	16x10-E	12	44.4	46.08	2046.1	7,961	75.4	5,929	209.14	2.90
	APC	16x12-E	12	44.4	51.59	2290.7	7,836	89.0	5,458	192.52	2.38
	APC	17x8-E	12	44.4	44.15	1960.0	8,000	60.6	6,628	233.79	3.38
	APC	17x10-E	12	44.4	53.26	2364.5	7,800	73.9	7,065	249.21	2.99
	APC	17x12-E	12	44.4	59.07	2622.8	7,694	87.4	6,877	242.58	2.62
	APC	18x8-E	12	44.4	43.00	1909.0	8,029	60.8	8,059	284.27	4.22
	APC	18x10-E	12	44.4	50.05	2222.2	7,722	73.1	8,032	283.32	3.61
	APC	19x8-E	12	44.4	65.51	2908.6	7,571	57.4	9,164	323.25	3.15
	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.