Cobra C2213/18 Motor Propeller Data
	Motor Wind		Motor Kv		No-Load Current		Motor Resistance		I Max	P Max (3S)
	18-Turn Delta		1350 RPM/Volt		Io = 0.68 Amps @ 8v		Rm = 0.068 Ohms		20 Amps	220 W
	Outside Diameter		Body Length		Total Shaft Length		Shaft Diameter		Motor Weight
	27.7 mm,  1.09 in.		28.0 mm,  1.10 in.		42.0 mm,  1.65 in.		3.17 mm,  0.125 in.		61.0 gm,   2.15 oz
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	8x6-E	7.4	12.64	93.5	7,830	44.5	484	17.07	5.17
	APC	8x8-E	7.4	15.94	118.0	7,220	54.7	461	16.26	3.91
	APC	9x3.8-SF	7.4	13.02	96.3	7,730	27.8	637	22.47	6.61
	APC	9x4.5-E	7.4	11.89	88.0	7,940	33.8	609	21.48	6.92
	APC	9x4.7-SF	7.4	13.23	97.9	7,690	34.2	657	23.17	6.71
	APC	9x6-E	7.4	13.66	101.1	7,620	43.3	618	21.80	6.11
	APC	9x6-SF	7.4	19.87	147.0	6,510	37.0	701	24.73	4.77
	APC	9x7.5-E	7.4	18.12	134.1	6,830	48.5	593	20.92	4.42
	APC	9x7.5-SF	7.4	21.96	162.5	6,070	43.1	634	22.36	3.90
	APC	10x3.8-SF	7.4	18.41	136.2	6,750	24.3	816	28.78	5.99
	APC	10x4.7-SF	7.4	19.54	144.6	6,550	29.2	824	29.07	5.70
	APC	10x5-E	7.4	15.80	116.9	7,240	34.3	733	25.86	6.27
	APC	10x6-E	7.4	15.91	117.7	6,916	39.3	741	26.14	6.29
	APC	10x7-E	7.4	17.51	129.6	6,610	43.8	742	26.17	5.73
	APC	10x7-SF	7.4	23.80	176.1	5,730	38.0	796	28.08	4.52
	APC	11x3.8-SF	7.4	19.78	146.4	6,460	23.2	875	30.86	5.98
	APC	11x4.7-SF	7.4	22.59	167.2	5,860	26.1	914	32.24	5.47
	APC	11x5.5-E	7.4	18.22	134.8	6,470	33.7	846	29.84	6.27
	GWS	8x4x3-DD	7.4	8.59	63.6	8,570	32.5	460	16.23	7.24
	GWS	9x5-DD	7.4	11.78	87.2	7,970	37.7	623	21.98	7.15
	GWS	9x5x3-DD	7.4	14.42	106.7	7,500	35.5	675	23.81	6.33
	GWS	10x6-DD	7.4	15.21	112.6	7,370	41.9	736	25.96	6.54
	GWS	10x6x3-DD	7.4	18.65	138.0	6,720	38.2	825	29.10	5.98
	GWS	10x8-HD	7.4	21.43	158.6	6,170	35.1	681	24.02	4.29
	GWS	11x7-DD	7.4	20.27	150.0	6,350	42.1	885	31.22	5.90
	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	10.57	117.3	12,330	46.7	620	21.87	5.28
	APC	7x4-SF	11.1	10.87	120.7	12,280	46.5	617	21.76	5.11
	APC	7x5-E	11.1	13.17	146.2	11,790	55.8	626	22.08	4.28
	APC	7x5-SF	11.1	13.36	148.3	11,760	55.7	653	23.03	4.40
	APC	7x6-E	11.1	13.88	154.1	11,640	66.1	672	23.70	4.36
	APC	7x6-SF	11.1	16.07	178.4	11,230	63.8	619	21.83	3.47
	APC	8x4-E	11.1	15.09	167.5	11,410	43.2	829	29.24	4.95
	APC	8x6-E	11.1	20.84	231.3	10,230	58.1	895	31.57	3.87
	APC	9x4.5-E	11.1	20.00	222.0	10,380	44.2	1082	38.17	4.87
	GWS	7x3.5x3-DD	11.1	8.07	89.6	12,900	48.9	520	18.34	5.81
	GWS	8x4-DD	11.1	12.00	133.2	12,030	45.6	767	27.05	5.76
	GWS	8x4x3-DD	11.1	14.53	161.3	11,530	43.7	840	29.63	5.21
	GWS	9x5-DD	11.1	19.48	216.2	10,510	49.8	1096	38.66	5.07
	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	9.74	144.2	17,080	72.8	441	15.56	3.06
	APC	6x4-E	14.8	10.99	162.7	16,780	63.6	604	21.31	3.71
	APC	6x5.5-E	14.8	13.92	206.0	16,080	83.8	579	20.42	2.81
	APC	7x4-E	14.8	17.00	251.6	15,370	58.2	1011	35.66	4.02
	APC	7x4-SF	14.8	18.14	268.5	15,100	57.2	997	35.17	3.71
	APC	7x5-E	14.8	20.71	306.5	14,490	68.6	979	34.53	3.19
	APC	7x5-SF	14.8	21.39	316.6	14,340	67.9	993	35.03	3.14
	APC	7x6-E	14.8	21.52	318.5	14,320	81.4	1047	36.93	3.29
	APC	8x4-E	14.8	23.33	345.3	13,800	52.3	1268	44.73	3.67
	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.