Cobra C2820/14 Motor Propeller Data
	Motor Wind		Motor Kv		No-Load Current		Motor Resistance		I Max	P Max (3S)
	14-Turn Delta		840 RPM/Volt		Io = 1.00 Amps @ 10v		Rm = 0.047 Ohms		36 Amps	400 W
	Outside Diameter		Body Length		Total Shaft Length		Shaft Diameter		Motor Weight
	35.0 mm,  1.38 in.		40.0 mm,  1.57 in.		60.0 mm,  2.36 in.		5.00 mm,  0.197 in.		140 gm,   4.94 oz
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	9x7.5-E	11.1	14.86	164.9	7,784	55.3	777	27.41	4.71
	APC	9x9-E	11.1	18.47	205.0	7,528	64.2	778	27.44	3.80
	APC	10x7-E	11.1	15.69	174.1	7,736	51.3	1035	36.51	5.94
	APC	10x10-E	11.1	23.29	258.6	7,191	68.1	928	32.73	3.59
	APC	11x5.5-E	11.1	16.93	187.9	7,637	39.8	1221	43.07	6.50
	APC	11x7-E	11.1	20.06	222.6	7,411	49.1	1301	45.89	5.84
	APC	11x8-E	11.1	21.88	242.9	7,281	55.2	1255	44.27	5.17
	APC	11x8.5-E	11.1	23.25	258.0	7,147	57.5	1298	45.79	5.03
	APC	11x10-E	11.1	27.78	308.4	6,874	65.1	1162	40.99	3.77
	APC	12x6-E	11.1	21.72	241.1	7,292	41.4	1491	52.59	6.18
	APC	12x8-E	11.1	27.40	304.1	6,908	52.3	1379	48.64	4.53
	APC	12x10-E	11.1	30.74	341.2	6,617	62.7	1486	52.42	4.35
	APC	13x4-E	11.1	17.62	195.6	7,584	28.7	1391	49.07	7.11
	APC	13x6.5-E	11.1	28.98	321.6	6,777	41.7	1805	63.67	5.61
	APC	13x8-E	11.1	31.05	344.7	6,607	50.1	1802	63.56	5.23
	APC	13x10-E	11.1	35.86	398.0	6,192	58.6	1704	60.11	4.28
	APC	14x7-E	11.1	34.00	377.4	6,370	42.2	2032	71.68	5.38
	APC	14x8.5-E	11.1	36.21	401.9	6,184	49.8	2051	72.35	5.10
	APC	14x10-E	11.1	36.19	401.7	6,204	58.8	2037	71.85	5.07
	APC	15x4-E	11.1	29.11	323.1	6,790	25.7	2093	73.83	6.48
	APC	15x6-E	11.1	35.82	397.6	6,243	35.5	2264	79.86	5.69
	APC	15x8-E	11.1	38.13	423.3	6,052	45.8	2259	79.68	5.34
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	8x8-E	14.8	20.46	302.8	10,166	77.0	921	32.49	3.04
	APC	9x6-E	14.8	16.36	242.1	10,442	59.3	1164	41.06	4.81
	APC	9x7.5-E	14.8	25.09	371.3	9,794	69.6	1257	44.34	3.39
	APC	9x9-E	14.8	28.43	420.8	9,510	81.1	1249	44.06	2.97
	APC	10x5-E	14.8	20.29	300.2	10,171	48.2	1497	52.80	4.99
	APC	10x6-E	14.8	21.85	323.3	10,048	57.1	1594	56.23	4.93
	APC	10x7-E	14.8	25.37	375.4	9,767	64.7	1706	60.18	4.54
	APC	10x10-E	14.8	35.47	525.0	8,939	84.6	1476	52.06	2.81
	APC	11x5.5-E	14.8	27.57	408.0	9,583	49.9	1984	69.98	4.86
	APC	11x7-E	14.8	32.00	473.7	9,207	61.0	2061	72.70	4.35
	APC	11x8-E	14.8	34.53	511.0	9,010	68.3	1980	69.84	3.87
	APC	11x8.5-E	14.8	36.74	543.8	8,829	71.1	1974	69.63	3.63
	APC	11x10-E	14.8	41.20	609.7	8,361	79.2	1728	60.95	2.83
	APC	12x6-E	14.8	35.11	519.6	8,960	50.9	2407	84.90	4.63
	APC	12x8-E	14.8	41.58	615.4	8,405	63.7	2060	72.66	3.35
	APC	13x4-E	14.8	27.58	408.2	9,582	36.3	2269	80.04	5.56
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	8x4-E	18.5	14.62	270.5	13,441	50.9	1206	42.54	4.46
	APC	8x6-E	18.5	23.35	432.0	12,600	71.6	1413	49.84	3.27
	APC	8x8-E	18.5	30.03	555.5	12,082	91.5	1305	46.03	2.35
	APC	9x4.5-E	18.5	21.30	394.0	12,845	54.7	1755	61.91	4.45
	APC	9x6-E	18.5	24.57	454.6	12,545	71.3	1701	60.00	3.74
	APC	9x7.5-E	18.5	36.74	679.7	11,472	81.5	1752	61.80	2.58
	APC	10x5-E	18.5	30.16	557.9	12,055	57.1	2098	74.00	3.76
	APC	10x6-E	18.5	31.90	590.1	11,910	67.7	2255	79.54	3.82
	APC	10x7-E	18.5	36.43	674.0	11,497	76.2	2373	83.70	3.52
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	7x5-E	22.2	17.38	385.9	16,079	76.1	1218	42.96	3.16
	APC	7x6-E	22.2	18.09	401.5	15,948	90.6	1311	46.24	3.27
	APC	8x4-E	22.2	21.05	467.3	15,707	59.5	1666	58.77	3.57
	APC	8x6-E	22.2	33.91	752.8	14,471	82.2	1870	65.96	2.48
	APC	8x8-E	22.2	41.75	926.7	13,706	103.8	1686	59.47	1.82
	APC	9x4.5-E	22.2	29.79	661.3	14,855	63.3	2437	85.96	3.69
	APC	9x6-E	22.2	34.42	764.1	14,417	81.9	2255	79.54	2.95
	APC	10x5-E	22.2	41.23	915.3	13,642	64.6	2710	95.59	2.96
	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.