Cobra CP2814-1450 Motor Propeller Data
	Magnets	Motor Wind		Motor Kv		No-Load Current		Motor Resistance		I Max	P Max (5S)
	14-Pole	10-Turn Delta		1450 RPM/Volt		Io = 4.08 Amps @ 15v		Rm = 0.016 Ohms		55 Amps	1020 W
	Stator	Outside Diameter		Body Length		Total Shaft Length		Shaft Diameter		Motor Weight
	12-Slot	35.1 mm,  1.38 in.		36.0 mm,  1.42 in.		41.5 mm,  1.63 in.		5.00 mm,  0.197 in.		120 gm,   4.23 oz
	Test Data From		Input	12.0 V	15.0 V	18.0V	21.0V	Measured Kv value		Measured Rm Value
	Sample Motor		Io Value	3.521 A	4.082 A	4.294 A	4.630 A	1580 RPM/Volt @ 15V		0.0163 Ohms
	Prop	Prop	Li-Po	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Cells	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	7x4-E	3	11.1	24.80	275.2	15,690	59.4	1077	37.99	3.91
	APC	7x5-E	3	11.1	31.10	345.2	15,316	72.5	1092	38.52	3.16
	APC	7x6-E	3	11.1	33.04	366.8	15,275	86.8	1173	41.38	3.20
	APC	8x4-E	3	11.1	38.09	422.8	15,004	56.8	1486	52.42	3.51
	APC	8x6-E	3	11.1	59.93	665.3	13,707	77.9	1654	58.34	2.49
	Prop	Prop	Li-Po	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Cells	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	6x4-E	4	14.8	23.19	343.3	21,327	80.8	967	34.11	2.82
	APC	6x4.3-MR	4	14.8	32.30	478.0	20,756	84.5	1407	49.63	2.94
	APC	6x4.5-MR	4	14.8	30.23	447.4	20,885	89.0	1390	49.03	3.11
	APC	6x5.5-E	4	14.8	28.88	427.4	20,973	109.2	1051	37.07	2.46
	APC	6x6-E	4	14.8	33.49	495.6	20,667	117.4	1073	37.85	2.17
	APC	7x4-E	4	14.8	44.04	651.7	19,932	75.5	1776	62.65	2.72
	APC	7x5-E	4	14.8	53.96	798.6	19,345	91.6	1766	62.29	2.21
	APC	7x6-E	4	14.8	56.67	838.7	19,260	109.4	1888	66.60	2.25
	Prop	Prop	Li-Po	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Cells	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	6x4-E	5	18.5	38.24	707.4	26,353	99.8	1478	52.13	2.09
	APC	6x4.3-MR	5	18.5	52.19	965.5	25,513	103.9	2153	75.94	2.23
	APC	6x4.5-MR	5	18.5	47.42	877.3	25,837	110.1	2145	75.66	2.44
	APC	6x5.5-E	5	18.5	46.54	861.0	25,858	134.7	1568	55.31	1.82
	APC	6x6-E	5	18.5	52.55	972.1	25,418	144.4	1579	55.70	1.62
	© 2018 Innov8tive Designs, Inc.
	This chart, and the data contained within it, are the property of Innov8tive Designs, Inc., and may not be reproduced without permission from the author.
	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.