Cobra C-5320-22 300Kv Motor Propeller Data
	Magnets	Motor Wind		Motor Kv		No-Load Current		Motor Resistance		I Max	P Max (8S)
	14-Pole	22-Turn Delta		300 RPM/Volt		Io = 1.81 Amps @ 20v		Rm =  0.029 Ohms		62 Amps	1835 W
	Stator	Outside Diameter		Body Length		Total Shaft Length		Shaft Diameter		Motor Weight
	12-Slot	63.0 mm,  2.48 in.		50.5 mm,  1.99 in.		84.3 mm,  3.32 in.		8.00 mm,  0.315 in.		490 grams, 17.28 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	1.599 A	1.811 A	2.228 A	2.485 A	303.6 RPM/Volt @ 20V		0.0287 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	16x8-E	6	22.2	26.88	596.8	6,028	45.7	3,172	111.89	5.32
	APC	16x10-E	6	22.2	30.06	667.4	5,950	56.3	3,302	116.47	4.95
	APC	16x12-E	6	22.2	37.07	822.9	5,785	65.7	2,958	104.34	3.59
	APC	17x8-E	6	22.2	29.78	661.0	5,955	45.1	3,639	128.36	5.51
	APC	17x10-E	6	22.2	36.78	816.5	5,800	54.9	3,808	134.32	4.66
	APC	17x12-E	6	22.2	41.58	923.1	5,726	65.1	3,743	132.03	4.05
	APC	18x8-E	6	22.2	31.45	698.2	5,926	44.9	4,275	150.79	6.12
	APC	18x10-E	6	22.2	37.94	842.3	5,774	54.7	4,513	159.19	5.36
	APC	18x12-E	6	22.2	52.56	1166.9	5,483	62.3	4,370	154.15	3.74
	APC	19x8-E	6	22.2	43.94	975.4	5,657	42.9	5,139	181.27	5.27
	APC	19x10-E	6	22.2	43.48	965.2	5,659	53.6	5,201	183.46	5.39
	APC	19x12-E	6	22.2	51.35	1139.9	5,577	63.4	5,421	191.22	4.76
	APC	20x8-E	6	22.2	45.22	1003.9	5,632	42.7	5,703	201.17	5.68
	APC	20x10-E	6	22.2	53.39	1185.3	5,474	51.8	6,076	214.32	5.13
	APC	20x11-E	6	22.2	57.52	1276.8	5,410	56.4	5,940	209.53	4.65
	APC	20x13-E	6	22.2	61.44	1363.9	5,344	65.8	6,112	215.59	4.48
	APC	20x15-E	6	22.2	75.86	1684.0	5,208	74.0	5,558	196.05	3.30
	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	7	25.9	23.21	601.0	7,156	54.2	3,125	110.23	5.20
	APC	15x10-E	7	25.9	34.15	884.4	6,888	65.2	3,587	126.53	4.06
	APC	16x8-E	7	25.9	37.00	958.3	6,813	51.6	4,180	147.44	4.36
	APC	16x10-E	7	25.9	40.98	1061.4	6,731	63.7	4,246	149.77	4.00
	APC	16x12-E	7	25.9	48.60	1258.7	6,567	74.6	3,818	134.67	3.03
	APC	17x8-E	7	25.9	40.21	1041.4	6,755	51.2	4,719	166.46	4.53
	APC	17x10-E	7	25.9	48.61	1259.0	6,560	62.1	4,900	172.84	3.89
	APC	17x12-E	7	25.9	54.69	1416.4	6,490	73.8	4,802	169.38	3.39
	APC	18x8-E	7	25.9	40.92	1059.7	6,724	50.9	5,519	194.67	5.21
	APC	18x10-E	7	25.9	50.02	1295.4	6,523	61.8	5,791	204.27	4.47
	APC	18x12-E	7	25.9	68.91	1784.9	6,186	70.3	5,550	195.77	3.11
	APC	19x8-E	7	25.9	58.87	1524.6	6,350	48.1	6,619	233.48	4.34
	APC	19x10-E	7	25.9	57.30	1484.2	6,382	60.4	6,708	236.62	4.52
	APC	19x12-E	7	25.9	67.76	1755.0	6,253	71.1	6,801	239.90	3.88
	APC	20x8-E	7	25.9	60.36	1563.2	6,333	48.0	7,389	260.64	4.73
	APC	20x10-E	7	25.9	71.27	1845.8	6,155	58.3	7,872	277.67	4.26
	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	15x6-E	8	29.6	27.43	811.9	8,095	46.0	3,997	140.99	4.92
	APC	15x8-E	8	29.6	30.18	893.4	8,010	60.7	3,972	140.11	4.45
	APC	15x10-E	8	29.6	44.93	1329.9	7,670	72.6	4,391	154.89	3.30
	APC	16x8-E	8	29.6	49.15	1454.9	7,590	57.5	5,165	182.19	3.55
	APC	16x10-E	8	29.6	54.19	1604.1	7,442	70.5	5,207	183.67	3.25
	APC	16x12-E	8	29.6	62.42	1847.5	7,276	82.7	4,696	165.64	2.54
	APC	17x8-E	8	29.6	52.76	1561.6	7,538	57.1	5,828	205.57	3.73
	APC	17x10-E	8	29.6	62.53	1850.9	7,343	69.5	6,066	213.97	3.28
	APC	18x8-E	8	29.6	52.24	1546.3	7,486	56.7	6,968	245.79	4.51
	APC	18x10-E	8	29.6	64.73	1916.1	7,231	68.5	7,144	251.99	3.73
	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	15x6-E	10	37.0	44.06	1630.0	9,684	55.0	5,785	204.06	3.55
	APC	15x8-E	10	37.0	47.14	1744.3	9,660	73.2	5,706	201.27	3.27
	APC	15x10-E	10	37.0	73.46	2717.9	9,723	92.1	6,066	213.97	2.23
	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.