Cobra C4130/14 Motor Propeller Data
	Motor Wind		Motor Kv		No-Load Current		Motor Resistance		I Max	P Max (6S)
	14-Turn Delta		450 RPM/Volt		Io = 1.46 Amps @ 20v		Rm = 0.024 Ohms		60 Amps	1330 W
	Outside Diameter		Body Length		Total Shaft Length		Shaft Diameter		Motor Weight
	49.8 mm,  1.96 in.		61.8 mm,  2.43 in.		84.5 mm,  3.33 in.		6.00 mm,  0.236 in.		400 gm,   14.11 oz
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	14x10-E	18.5	29.29	541.9	7,226	68.4	2834	99.97	5.23
	APC	14x12-E	18.5	43.87	811.5	6,752	76.7	2457	86.67	3.03
	APC	15x8-E	18.5	31.11	575.5	7,163	54.3	3174	111.96	5.52
	APC	15x10-E	18.5	44.33	820.1	6,739	63.8	3485	122.93	4.25
	APC	16x8-E	18.5	48.00	888.0	6,629	50.2	4044	142.65	4.55
	APC	16x10-E	18.5	50.80	939.9	6,441	61.0	4040	142.51	4.30
	APC	16x12-E	18.5	61.94	1146.0	6,215	70.6	3445	121.52	3.01
	APC	17x8-E	18.5	51.66	955.7	6,527	49.4	4541	160.18	4.75
	APC	17x10-E	18.5	60.72	1123.3	6,250	59.2	4521	159.47	4.02
	APC	18x8-E	18.5	52.13	964.4	6,505	49.3	5188	183.00	5.38
	APC	18x10-E	18.5	60.09	1111.7	6,261	59.3	5269	185.86	4.74
	MAS	13x8x3	18.5	27.05	500.4	7,207	54.6	2717	95.84	5.43
	MAS	14x7x3	18.5	31.79	588.2	7,047	46.7	3218	113.51	5.47
	MAS	14x9x3	18.5	39.03	722.1	6,909	58.9	3687	130.05	5.11
	MAS	15x7x3	18.5	40.74	753.6	6,858	45.5	3968	139.97	5.27
	MAS	16x8x3	18.5	46.63	862.6	6,674	50.6	4472	157.74	5.18
	MAS	16x10x3	18.5	56.76	1050.0	6,255	59.2	4943	174.36	4.71
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	12x8-E	22.2	27.48	610.1	8,803	66.7	2307	81.38	3.78
	APC	12x10-E	22.2	33.77	749.8	8,568	81.1	2505	88.36	3.34
	APC	12x12-E	22.2	37.20	825.9	8,440	95.9	2355	83.07	2.85
	APC	13x6.5-E	22.2	30.11	668.4	8,583	52.8	3136	110.62	4.69
	APC	13x8-E	22.2	33.77	749.7	8,577	65.0	3135	110.58	4.18
	APC	13x10-E	22.2	45.72	1015.1	8,157	77.2	2983	105.22	2.94
	APC	14x7-E	22.2	39.50	876.9	8,354	55.4	3776	133.19	4.31
	APC	14x8.5-E	22.2	40.73	904.3	8,327	67.0	3843	135.56	4.25
	APC	14x10-E	22.2	41.23	915.3	8,309	78.7	3652	128.82	3.99
	APC	14x12-E	22.2	58.73	1303.9	7,719	87.7	3240	114.29	2.48
	APC	15x4-E	22.2	30.70	681.6	8,683	32.9	3768	132.91	5.53
	APC	15x6-E	22.2	41.26	916.0	8,310	47.2	4408	155.49	4.81
	APC	15x8-E	22.2	42.63	946.3	8,260	62.6	4285	151.15	4.53
	APC	15x10-E	22.2	62.19	1380.7	7,627	72.2	4432	156.33	3.21
	APC	16x8-E	22.2	67.17	1491.1	7,468	56.6	5200	183.42	3.49
	MAS	12x6x3	22.2	23.85	529.4	8,943	50.8	2630	92.77	4.97
	MAS	12x8x3	22.2	33.52	744.1	8,578	65.0	3420	120.64	4.60
	MAS	13x8x3	22.2	36.99	821.1	8,451	64.0	3784	133.48	4.61
	MAS	14x7x3	22.2	43.27	960.6	8,239	54.6	4473	157.78	4.66
	MAS	14x9x3	22.2	51.24	1137.5	7,974	68.0	4964	175.10	4.36
	MAS	15x7x3	22.2	52.14	1157.6	7,826	51.9	5229	184.45	4.52
	MAS	16x8x3	22.2	60.94	1352.9	7,650	58.0	5972	210.65	4.41
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	11x5.5-E	29.6	27.87	825.0	11,840	61.7	3267	115.24	3.96
	APC	11x7-E	29.6	33.64	995.8	11,586	76.8	3403	120.04	3.42
	APC	11x8-E	29.6	37.19	1100.9	11,421	86.5	3212	113.30	2.92
	APC	11x8.5-E	29.6	38.66	1144.3	11,190	90.1	3204	113.02	2.80
	APC	11x10-E	29.6	44.99	1331.6	11,104	105.2	3084	108.78	2.32
	APC	12x6-E	29.6	38.52	1140.2	11,338	64.4	4152	146.46	3.64
	APC	12x8-E	29.6	46.04	1362.6	11,063	83.8	3743	132.03	2.75
	APC	12x10-E	29.6	56.65	1676.8	10,648	100.8	3874	136.65	2.31
	APC	12x12-E	29.6	58.25	1724.3	10,581	120.2	3703	130.62	2.15
	APC	13x4-E	29.6	30.36	898.8	11,546	43.7	4077	143.81	4.54
	APC	13x6.5-E	29.6	55.15	1632.5	10,707	65.9	4849	171.04	2.97
	APC	13x8-E	29.6	56.18	1662.9	10,511	79.6	4852	171.15	2.92
	APC	14x7-E	29.6	69.17	2047.4	10,179	67.5	5717	201.66	2.79
	APC	15x4-E	29.6	54.60	1616.0	10,724	40.6	6076	214.32	3.76
	MAS	10x7x3	29.6	27.08	801.4	11,862	78.6	3122	110.12	3.90
	MAS	11x7x3	29.6	33.00	976.9	11,599	76.9	3756	132.49	3.84
	MAS	11x8x3	29.6	36.63	1084.4	11,435	86.6	3813	134.50	3.52
	MAS	12x6x3	29.6	37.36	1106.0	11,404	64.8	4361	153.83	3.94
	MAS	12x8x3	29.6	52.31	1548.3	10,818	82.0	5478	193.23	3.54
	MAS	13x8x3	29.6	57.64	1706.0	10,613	80.4	6023	212.45	3.53
	MAS	14x7x3	29.6	67.29	1991.8	10,262	68.0	7142	251.92	3.59
	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.