Cobra C2217/12 Motor Propeller Data
	Motor Wind		Motor Kv		No-Load Current		Motor Resistance		I Max	P Max (3S)
	12-Turn Delta		1550 RPM/Volt		Io = 1.15 Amps @ 8v		Rm = 0.044 Ohms		32 Amps	350 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.		74.0 gm,   2.61 oz
	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	7.4	14.14	104.6	9,120	32.8	655	23.10	6.26
	APC	8x4-E	7.4	12.14	89.8	9,400	35.6	559	19.72	6.22
	APC	8x6-E	7.4	17.37	128.5	8,670	49.3	639	22.54	4.97
	APC	8x6-SF	7.4	21.84	161.6	8,040	45.7	685	24.16	4.24
	APC	9x3.8-SF	7.4	18.32	135.6	8,537	30.7	817	28.82	6.03
	APC	9x4.5-E	7.4	16.65	123.2	8,770	37.4	765	26.98	6.21
	APC	9x4.7-SF	7.4	17.91	132.5	8,610	38.3	808	28.50	6.10
	APC	9x6-E	7.4	19.17	141.9	8,460	48.1	774	27.30	5.46
	APC	9x6-SF	7.4	27.90	206.5	7,146	40.6	850	29.98	4.12
	APC	9x7.5-E	7.4	25.18	186.3	7,570	53.8	751	26.49	4.03
	APC	9x7.5-SF	7.4	30.77	227.7	6,660	47.3	634	22.36	2.78
	APC	10x3.8-SF	7.4	25.86	191.4	7,430	26.7	1007	35.52	5.26
	APC	10x4.7-SF	7.4	27.40	202.8	7,270	32.4	1026	36.19	5.06
	APC	10x5-E	7.4	22.04	163.1	8,020	38.0	905	31.92	5.55
	APC	10x6-E	7.4	23.42	173.3	7,800	44.3	946	33.37	5.46
	APC	10x7-E	7.4	26.15	193.5	7,420	49.2	954	33.65	4.93
	APC	10x7-SF	7.4	33.55	248.3	6,320	41.9	984	34.71	3.96
	APC	11x3.8-SF	7.4	27.85	206.1	7,130	25.7	1100	38.80	5.34
	APC	11x4.7-SF	7.4	31.46	232.8	6,580	29.3	1151	40.60	4.94
	APC	11x5.5-E	7.4	27.57	204.0	7,280	37.9	1106	39.01	5.42
	APC	11x7-E	7.4	30.49	225.6	6,770	44.9	1085	38.27	4.81
	GWS	8x4-DD	7.4	9.58	70.9	9,760	37.0	499	17.60	7.04
	GWS	9x5-DD	7.4	16.21	120.0	8,830	41.8	771	27.20	6.43
	GWS	9x5x3-DD	7.4	20.08	148.6	8,320	39.4	856	30.19	5.76
	GWS	10x6-DD	7.4	20.94	155.0	8,160	46.4	904	31.89	5.83
	GWS	10x6x3-DD	7.4	25.74	190.5	7,480	42.5	1029	36.30	5.40
	GWS	10x8-HD	7.4	29.68	219.6	6,830	38.8	834	29.42	3.80
	GWS	11x7-DD	7.4	28.15	208.3	7,040	46.7	1103	38.91	5.29
	GWS	12x6-HD	7.4	29.69	219.7	6,770	38.5	1165	41.09	5.30
	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	11.1	15.95	177.0	13,990	53.0	824	29.07	4.65
	APC	7x5-E	11.1	20.14	223.6	13,350	63.2	829	29.24	3.71
	APC	7x6-E	11.1	20.88	231.8	13,210	75.1	890	31.39	3.84
	APC	8x4-E	11.1	22.92	254.4	12,860	48.7	1088	38.38	4.28
	APC	8x6-E	11.1	31.72	352.1	11,440	65.0	1167	41.16	3.31
	APC	9x4.5-E	11.1	29.99	332.9	11,630	49.6	1403	49.49	4.21
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	5.5x4.5-E	14.8	14.99	221.9	19,470	83.0	590	20.81	2.66
	APC	6x4-E	14.8	16.87	249.7	19,130	72.5	791	27.90	3.17
	APC	6x5.5-E	14.8	21.09	312.1	18,140	94.5	739	26.07	2.37
	APC	7x4-E	14.8	25.82	382.1	17,234	65.3	1304	46.00	3.41
	APC	7x5-E	14.8	31.20	461.8	16,200	76.7	1253	44.20	2.71
	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.