Cobra CM-4008/24 600Kv Motor Propeller Data
	Magnets	Motor Wind		Motor Kv		No-Load Current		Motor Resistance		I Max	P Max (4S)
	22-Pole	24-Turn Wye		600 RPM/Volt		Io = 0.72 Amps @ 12v		Rm = 0.086 Ohms		23 Amps	340 W
	Stator	Outside Diameter		Body Length		Total Shaft Length		Shaft Diameter		Motor Weight
	24-Slot	45.5 mm,  1.791 in.		23.9 mm,  0.941 in.		33.5 mm,  1.319 in.		4.00 mm,  0.157 in.		106 gm,   3.74 oz
	Test Data From		Input	10.0 V	12.0 V	14.0V	16.0V	Measured Kv value		Measured Rm Value
	Sample Motor		Io Value	0.65 A	0.72 A	.79 A	.87 A	597 RPM/Volt @ 12V		0.086 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	12x4.5-MR	3	11.1	9.38	104.1	5,737	29.9	880	31.04	8.45
	APC	13x5.5-MR	3	11.1	12.36	137.2	5,423	28.2	1103	38.91	8.04
	APC	14x5.5-MR	3	11.1	15.11	167.7	5,231	27.2	1306	46.07	7.79
	APC	16x5.5-MR	3	11.1	21.17	235.0	4,705	24.5	1673	59.01	7.12
	GemFan	13x4.5-MR-W	3	11.1	10.99	122.0	5,597	23.9	981	34.60	8.04
	GemFan	14x4.5-MR-W	3	11.1	12.90	143.2	5,424	23.1	1155	40.74	8.07
	GemFan	15x4.5-MR-W	3	11.1	13.98	155.2	5,325	22.7	1213	42.79	7.82
	GemFan	16x4.5-MR-W	3	11.1	18.31	203.2	4,939	21.0	1494	52.70	7.35
	RC-Timer	12x5.5-CF	3	11.1	11.14	123.7	5,571	29.0	903	31.85	7.30
	RC-Timer	13x5.5-CF	3	11.1	14.33	159.1	5,285	27.5	1100	38.80	6.92
	RC-Timer	14x5.5-CF	3	11.1	19.16	212.7	4,879	25.4	1302	45.93	6.12
	RC-Timer	15x5.5-CF	3	11.1	24.44	271.3	4,412	23.0	1475	52.03	5.44
	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	10x4.5-MR	4	14.8	9.24	136.8	7,809	33.3	919	32.42	6.72
	APC	11x4.5-MR	4	14.8	11.65	172.4	7,566	32.2	1167	41.16	6.77
	APC	12x4.5-MR	4	14.8	14.97	221.6	7,267	31.0	1433	50.55	6.47
	APC	13x5.5-MR	4	14.8	19.77	292.6	6,743	35.1	1787	63.03	6.11
	APC	14x5.5-MR	4	14.8	23.53	348.2	6,420	33.4	2009	70.86	5.77
	GemFan	11x4-MR-W	4	14.8	10.32	152.7	7,715	29.2	1055	37.21	6.91
	GemFan	12x4-MR-W	4	14.8	13.73	203.2	7,361	27.9	1341	47.30	6.60
	GemFan	13x4.5-MR-W	4	14.8	17.08	252.8	7,049	30.0	1601	56.47	6.33
	GemFan	14x4.5-MR-W	4	14.8	20.02	296.3	6,776	28.9	1844	65.04	6.22
	GemFan	15x4.5-MR-W	4	14.8	21.72	321.5	6,585	28.1	1899	66.98	5.91
	GemFan	16x4.5-MR-W	4	14.8	27.89	412.8	5,987	25.5	2208	77.88	5.35
	RC-Timer	10x5.5-CF	4	14.8	7.94	117.5	7,956	41.4	781	27.55	6.65
	RC-Timer	11x5.5-CF	4	14.8	11.89	176.0	7,556	39.4	1079	38.06	6.13
	RC-Timer	12x5.5-CF	4	14.8	18.09	267.7	6,948	36.2	1472	51.92	5.50
	RC-Timer	13x5.5-CF	4	14.8	23.55	348.5	6,481	33.8	1744	61.52	5.00
	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
	512 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.