Cobra C2217/16 Motor Propeller Data
	Motor Wind		Motor Kv		No-Load Current		Motor Resistance		I Max	P Max (3S)
	16-Turn Delta		1180 RPM/Volt		Io = 0.75 Amps @ 8v		Rm = 0.070 Ohms		24 Amps	265 W
	Outside Diameter		Body Length		Total Shaft Length		Shaft Diameter		Motor Weight
	27.7 mm,  1.09 in.		33.0 mm,  1.30 in.		47.0 mm,  1.85 in.		3.17 mm,  0.125 in.		73.0 gm,   2.57 oz
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	9x6-SF	7.4	15.04	111.3	6,222	35.4	644	22.72	5.79
	APC	9x7.5-SF	7.4	17.00	125.8	5,950	42.3	622	21.94	4.94
	APC	10x3.8-SF	7.4	13.91	102.9	6,390	23.0	726	25.61	7.05
	APC	10x4.7-SF	7.4	15.12	111.9	6,210	27.6	764	26.95	6.83
	APC	10x5-E	7.4	11.56	85.5	6,720	31.8	646	22.79	7.55
	APC	10x6-E	7.4	12.75	94.4	6,550	37.2	676	23.84	7.16
	APC	10x7-E	7.4	14.31	105.9	6,330	42.0	687	24.23	6.49
	APC	10x7-SF	7.4	18.99	140.5	5,630	37.3	775	27.34	5.51
	APC	10x10-E	7.4	19.80	146.5	5,500	52.1	540	19.05	3.69
	APC	11x3.8-SF	7.4	15.06	111.4	6,190	22.3	787	27.76	7.06
	APC	11x4.7-SF	7.4	17.96	132.9	5,780	25.7	879	31.01	6.61
	APC	11x5.5-E	7.4	14.99	110.9	6,210	32.3	792	27.94	7.14
	APC	11x7-E	7.4	17.22	127.4	5,910	39.2	812	28.64	6.37
	APC	11x7-SF	7.4	22.36	165.5	5,110	33.9	810	28.57	4.90
	APC	11x8-E	7.4	18.23	134.9	5,730	43.4	784	27.65	5.81
	APC	11x8.5-E	7.4	19.31	142.9	5,560	44.8	785	27.69	5.49
	APC	12x3.8-SF	7.4	20.34	150.5	5,420	19.5	970	34.22	6.44
	APC	12x6-E	7.4	18.03	133.4	5,770	32.8	909	32.06	6.81
	APC	12x8-E	7.4	21.34	157.9	5,240	39.7	793	27.97	5.02
	APC	13x4-E	7.4	16.69	123.5	5,980	22.7	938	33.09	7.59
	APC	13x6.5-E	7.4	22.24	164.6	5,130	31.6	1018	35.91	6.19
	APC	13x8-E	7.4	23.31	172.5	4,900	37.1	978	34.50	5.67
	GWS	10x6-DD	7.4	11.12	82.3	6,780	38.5	623	21.98	7.57
	GWS	10x6x3-DD	7.4	14.21	105.2	6,320	35.9	734	25.89	6.98
	GWS	10x8-HD	7.4	16.95	125.4	5,940	33.8	640	22.58	5.10
	GWS	11x7-DD	7.4	15.98	118.3	6,080	40.3	826	29.14	6.99
	GWS	12x6-HD	7.4	17.82	131.9	5,910	33.6	901	31.78	6.83
	GWS	12x8-DD	7.4	20.88	154.5	5,360	40.6	923	32.56	5.97
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	8x3.8-SF	11.1	13.75	152.6	10,250	36.9	839	29.59	5.50
	APC	8x4-E	11.1	11.59	128.6	10,610	40.2	719	25.36	5.59
	APC	8x6-E	11.1	16.70	185.4	9,790	55.6	832	29.35	4.49
	APC	8x6-SF	11.1	21.16	234.9	9,000	51.1	872	30.76	3.71
	APC	8x8-E	11.1	21.15	234.8	9,010	68.3	728	25.68	3.10
	APC	9x3.8-SF	11.1	17.78	197.4	9,560	34.4	1068	37.67	5.41
	APC	9x4.5-E	11.1	16.10	178.7	9,860	42.0	998	35.20	5.58
	APC	9x4.7-SF	11.1	17.07	189.5	9,684	43.1	1050	37.04	5.54
	APC	9x6-E	11.1	18.63	206.8	9,450	53.7	1058	37.32	5.12
	APC	9x6-SF	11.1	26.94	299.0	7,930	45.1	1081	38.13	3.61
	APC	9x7.5-E	11.1	23.84	264.6	8,560	60.8	1036	36.54	3.91
	APC	10x3.8-SF	11.1	25.08	278.4	8,250	29.7	1314	46.35	4.72
	APC	10x5-E	11.1	21.11	234.3	9,000	42.6	1166	41.13	4.98
	APC	10x6-E	11.1	22.19	246.3	8,770	49.8	1224	43.17	4.97
	APC	10x7-E	11.1	24.67	273.8	8,320	55.2	1217	42.93	4.44
	APC	11x5.5-E	11.1	25.89	287.4	8,114	42.3	1383	48.78	4.81
	GWS	8x4-DD	11.1	9.14	101.5	11,020	41.7	656	23.14	6.47
	GWS	9x5-DD	11.1	15.60	173.2	9,920	47.0	994	35.06	5.74
	GWS	9x5x3-DD	11.1	19.39	215.2	9,330	44.2	1096	38.66	5.09
	GWS	10x6-DD	11.1	20.11	223.2	9,190	52.2	1162	40.99	5.21
	GWS	10x6x3-DD	11.1	24.39	270.7	8,400	47.7	1322	46.63	4.88
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	7x4-E	14.8	12.70	188.0	14,290	54.1	874	30.83	4.65
	APC	7x5-E	14.8	15.99	236.7	13,670	64.7	882	31.11	3.73
	APC	7x6-E	14.8	16.62	246.0	13,540	76.9	946	33.37	3.85
	APC	8x4-E	14.8	18.33	271.3	13,190	50.0	1160	40.92	4.28
	APC	8x6-E	14.8	25.52	377.7	11,700	66.5	1232	43.46	3.26
	APC	9x4.5-E	14.8	24.27	359.2	12,020	51.2	1509	53.23	4.20
	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.