Cobra C2213/12 Motor Propeller Data
	Motor Wind		Motor Kv		No-Load Current		Motor Resistance		I Max	P Max (3S)
	12-Turn Delta		2000 RPM/Volt		Io = 1.20 Amps @ 8v		Rm = 0.040 Ohms		30 Amps	330 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.		60.0 gm,   2.11 oz
	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	7.4	14.86	110.0	12,060	45.7	586	20.67	5.33
	APC	7x5-E	7.4	18.51	137.0	11,460	54.3	591	20.85	4.31
	APC	7x6-E	7.4	19.43	143.8	11,310	64.3	636	22.43	4.42
	APC	8x4-E	7.4	21.21	157.0	11,030	41.8	782	27.58	4.98
	APC	8x6-E	7.4	28.57	211.4	9,780	55.6	820	28.92	3.88
	APC	9x4.5-E	7.4	27.58	204.1	9,920	42.3	995	35.10	4.88
	APC	9x6-E	7.4	30.58	226.3	9,480	53.9	949	33.47	4.19
	GWS	7x3.5-DD	7.4	9.13	67.6	13,030	43.2	438	15.45	6.48
	GWS	7x3.5x3-DD	7.4	11.55	85.5	12,620	41.8	502	17.71	5.87
	GWS	8x4-DD	7.4	17.01	125.9	11,730	44.4	730	25.75	5.80
	GWS	8x4x3-DD	7.4	20.54	152.0	11,170	42.3	802	28.29	5.28
	GWS	9x5-DD	7.4	26.95	199.4	10,100	47.8	1010	35.63	5.06
	GWS	9x5x3-DD	7.4	31.99	236.7	9,280	43.9	1041	36.72	4.40
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	5x5-E	11.1	14.17	157.3	18,910	89.5	359	12.66	2.28
	APC	5.25x4.75-E	11.1	15.97	177.3	18,550	83.4	507	17.88	2.86
	APC	5.5x4.5-E	11.1	16.59	184.1	18,420	78.5	519	18.31	2.82
	APC	6x4-E	11.1	18.48	205.1	18,060	68.4	697	24.59	3.40
	APC	6x5.5-E	11.1	23.03	255.6	17,170	89.4	658	23.21	2.57
	APC	7x4-E	11.1	28.18	312.8	16,170	61.3	1135	40.04	3.63
	APC	7x5-E	11.1	33.31	369.7	15,100	71.5	1063	37.50	2.87
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	4.1x4.1-E	14.8	11.72	173.5	26,430	106.4	395	13.93	2.28
	APC	4.7x4.25-E	14.8	17.85	264.2	24,900	100.2	560	19.75	2.12
	APC	4.75x4.75-E	14.8	19.94	295.1	24,460	110.0	552	19.47	1.87
	APC	4.75x5.5-E	14.8	21.89	324.0	23,970	124.8	517	18.24	1.60
	APC	5x5-E	14.8	22.42	331.8	23,830	112.8	581	20.49	1.75
	APC	5.25x4.75-E	14.8	25.58	378.6	23,120	104.0	788	27.80	2.08
	APC	5.5x4.5-E	14.8	26.08	386.0	22,990	98.0	818	28.85	2.12
	APC	6x4-E	14.8	29.14	431.2	22,300	84.5	1084	38.24	2.51
	APC	6x5.5-E	14.8	34.63	512.5	20,970	109.2	985	34.74	1.92
	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.