Cobra C2820/10 Motor Propeller Data
	Motor Wind		Motor Kv		No-Load Current		Motor Resistance		I Max	P Max (3S)
	10-Turn Delta		1170 RPM/Volt		Io = 1.60 Amps @ 10v		Rm = 0.027 Ohms		45 Amps	490 W
	Outside Diameter		Body Length		Total Shaft Length		Shaft Diameter		Motor Weight
	35.0 mm,  1.38 in.		40.0 mm,  1.57 in.		60.0 mm,  2.36 in.		5.00 mm,  0.197 in.		142 gm,   5.01 oz
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	8x4-E	11.1	14.28	158.5	11,382	43.1	819	28.89	5.17
	APC	8x6-E	11.1	22.12	245.5	10,841	61.6	1015	35.80	4.13
	APC	8x8-E	11.1	29.46	327.0	10,339	78.3	937	33.05	2.87
	APC	9x4.5-E	11.1	20.74	230.2	10,946	46.6	1198	42.26	5.20
	APC	9x6-E	11.1	24.31	269.8	10,693	60.8	1210	42.68	4.48
	APC	9x7.5-E	11.1	35.76	396.9	9,924	70.5	1274	44.94	3.21
	APC	9x9-E	11.1	40.49	449.4	9,606	81.9	1259	44.41	2.80
	APC	10x5-E	11.1	29.45	326.9	10,341	49.0	1521	53.65	4.65
	APC	10x6-E	11.1	31.62	351.0	10,202	58.0	1628	57.43	4.64
	APC	10x7-E	11.1	36.26	402.4	9,888	65.5	1725	60.85	4.29
	APC	11x5.5-E	11.1	39.46	438.0	9,678	50.4	2010	70.90	4.59
	APC	11x7-E	11.1	45.42	504.2	9,254	61.3	2080	73.37	4.13
	APC	11x8-E	11.1	48.56	539.0	9,016	68.3	1966	69.35	3.65
	APC	12x6-E	11.1	49.06	544.5	8,980	51.0	2359	83.21	4.33
	APC	13x4-E	11.1	39.43	437.6	9,673	36.6	2302	81.20	5.26
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	7x5-E	14.8	21.08	312.0	14,953	70.8	1037	36.58	3.32
	APC	7x6-E	14.8	21.97	325.2	14,883	84.6	1117	39.40	3.44
	APC	8x4-E	14.8	25.01	370.2	14,577	55.2	1411	49.77	3.81
	APC	8x6-E	14.8	38.35	567.6	13,423	76.3	1598	56.37	2.82
	APC	8x8-E	14.8	47.53	703.4	12,741	96.5	1428	50.37	2.03
	APC	9x4.5-E	14.8	34.85	515.8	13,711	58.4	2015	71.08	3.91
	APC	9x6-E	14.8	39.83	589.5	13,368	76.0	1928	68.01	3.27
	APC	10x5-E	14.8	47.96	709.7	12,764	60.4	2317	81.73	3.26
	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	18.5	13.65	252.4	19,566	74.1	841	29.67	3.33
	APC	6x5.5-E	18.5	17.54	324.5	19,181	99.9	890	31.39	2.74
	APC	7x4-E	18.5	25.21	466.4	18,494	70.1	1510	53.26	3.24
	APC	7x5-E	18.5	31.74	587.2	17,934	84.9	1529	53.93	2.60
	APC	7x6-E	18.5	32.86	608.0	17,829	101.3	1656	58.41	2.72
	APC	8x4-E	18.5	37.87	700.5	17,415	66.0	2031	71.64	2.90
	APC	9x4.5-E	18.5	51.78	957.9	16,215	69.1	2944	103.85	3.07
	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.