Cobra C4130/16 Motor Propeller Data
	Motor Wind		Motor Kv		No-Load Current		Motor Resistance		I Max	P Max (6S)
	16-Turn Delta		390 RPM/Volt		Io = 1.12 Amps @ 20v		Rm = 0.032 Ohms		55 Amps	1220 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.		396 gm,   13.97 oz
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	14x12-E	18.5	30.19	558.6	6,024	68.5	1981	69.88	3.55
	APC	15x8-E	18.5	21.20	392.3	6,348	48.1	2519	88.85	6.42
	APC	15x10-E	18.5	29.77	550.7	6,034	57.1	2852	100.60	5.18
	APC	16x8-E	18.5	31.40	581.0	5,975	45.3	3278	115.63	5.64
	APC	16x10-E	18.5	34.98	647.1	5,869	55.6	3403	120.04	5.26
	APC	16x12-E	18.5	43.23	799.8	5,598	63.6	2818	99.40	3.52
	APC	17x8-E	18.5	34.85	644.7	5,871	44.5	3690	130.16	5.72
	APC	17x10-E	18.5	41.73	772.0	5,653	53.5	3764	132.77	4.88
	APC	17x12-E	18.5	46.08	852.5	5,502	62.5	3610	127.34	4.23
	APC	18x8-E	18.5	36.15	668.8	5,830	44.2	4154	146.53	6.21
	APC	18x10-E	18.5	42.19	780.5	5,640	53.4	4386	154.71	5.62
	APC	19x8-E	18.5	48.12	890.2	5,438	41.2	4879	172.10	5.48
	APC	19x10-E	18.5	47.28	874.6	5,466	51.8	4905	173.02	5.61
	APC	19x12-E	18.5	53.96	998.2	5,260	59.8	5054	178.27	5.06
	APC	20x8-E	18.5	49.29	911.9	5,311	40.2	5284	186.39	5.79
	MAS	14x7x3	18.5	22.64	418.9	6,290	41.7	2596	91.57	6.20
	MAS	14x9x3	18.5	27.16	502.4	6,123	52.2	2957	104.30	5.89
	MAS	15x7x3	18.5	27.31	505.3	6,035	40.0	3073	108.40	6.08
	MAS	16x8x3	18.5	32.54	601.9	5,951	45.1	3598	126.91	5.98
	MAS	16x10x3	18.5	41.12	760.8	5,670	53.7	4148	146.31	5.45
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	13x10-E	22.2	30.34	673.5	7,301	69.1	2394	84.44	3.55
	APC	14x7-E	22.2	25.74	571.5	7,480	49.6	3002	105.89	5.25
	APC	14x8.5-E	22.2	27.12	602.1	7,431	59.8	3118	109.98	5.18
	APC	14x10-E	22.2	26.83	595.6	7,440	70.5	3027	106.77	5.08
	APC	14x12-E	22.2	40.22	892.8	6,946	78.9	2625	92.59	2.94
	APC	15x6-E	22.2	27.19	603.7	7,426	42.2	3451	121.73	5.72
	APC	15x8-E	22.2	28.38	629.9	7,373	55.9	3381	119.26	5.37
	APC	15x10-E	22.2	41.36	918.2	6,909	65.4	3682	129.88	4.01
	APC	16x8-E	22.2	44.19	981.0	6,807	51.6	4298	151.61	4.38
	APC	16x10-E	22.2	48.49	1076.5	6,668	63.1	4337	152.98	4.03
	APC	16x12-E	22.2	57.00	1265.4	6,363	72.3	3669	129.42	2.90
	APC	17x8-E	22.2	48.09	1067.6	6,689	50.7	4849	171.04	4.54
	APC	17x10-E	22.2	54.37	1207.1	6,360	60.2	4800	169.31	3.98
	APC	18x8-E	22.2	47.65	1057.7	6,699	50.8	5524	194.85	5.22
	APC	18x10-E	22.2	55.34	1228.6	6,423	60.8	5644	199.08	4.59
	MAS	13x8x3	22.2	25.54	567.0	7,494	56.8	2988	105.40	5.27
	MAS	14x7x3	22.2	29.98	665.6	7,318	48.5	3572	126.00	5.37
	MAS	14x9x3	22.2	35.73	793.2	7,104	60.5	3969	140.00	5.00
	MAS	15x7x3	22.2	37.05	822.5	7,066	46.8	4268	150.55	5.19
	MAS	16x8x3	22.2	41.23	915.2	6,806	51.6	4675	164.90	5.11
	MAS	16x10x3	22.2	53.39	1185.3	6,490	61.5	5474	193.09	4.62
	Prop	Prop	Input	Motor	Watts	Prop	Pitch	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Voltage	Amps	Input	RPM	Speed	Grams	Ounces	Grams/W
	APC	11x8.5-E	29.6	26.28	777.8	10,059	81.0	2628	92.70	3.38
	APC	11x10-E	29.6	30.10	891.0	9,883	93.6	2448	86.35	2.75
	APC	12x6-E	29.6	24.89	736.6	10,129	57.6	3269	115.31	4.44
	APC	12x8-E	29.6	30.57	904.8	9,869	74.8	2950	104.06	3.26
	APC	12x10-E	29.6	37.70	1115.9	9,551	90.4	3123	110.16	2.80
	APC	12x12-E	29.6	40.26	1191.6	9,445	107.3	2973	104.87	2.49
	APC	13x6.5-E	29.6	35.30	1045.0	9,655	59.4	3992	140.81	3.82
	APC	13x8-E	29.6	37.73	1116.8	9,544	72.3	3958	139.61	3.54
	APC	13x10-E	29.6	50.92	1507.4	8,999	85.2	3686	130.02	2.45
	APC	14x7-E	29.6	44.99	1331.7	9,253	61.3	4681	165.12	3.51
	APC	14x8.5-E	29.6	45.83	1356.5	9,224	74.2	4624	163.11	3.41
	APC	14x10-E	29.6	45.56	1348.6	9,240	87.5	4518	159.37	3.35
	APC	14x12-E	29.6	63.63	1883.6	8,519	96.8	3940	138.98	2.09
	APC	15x4-E	29.6	34.80	1030.2	9,682	36.7	4914	173.33	4.77
	APC	15x6-E	29.6	46.73	1383.1	9,193	52.2	5417	191.08	3.92
	APC	15x8-E	29.6	47.84	1416.0	9,147	69.3	5246	185.05	3.70
	MAS	11x8x3	29.6	24.68	730.6	10,144	76.8	3029	106.84	4.15
	MAS	12x6x3	29.6	25.44	753.1	10,104	57.4	3397	119.82	4.51
	MAS	12x8x3	29.6	34.98	1035.3	9,531	72.2	4207	148.40	4.06
	MAS	13x8x3	29.6	39.76	1176.8	9,474	71.8	4797	169.21	4.08
	MAS	14x7x3	29.6	46.61	1379.6	9,194	60.9	5678	200.28	4.12
	MAS	14x9x3	29.6	54.85	1623.6	8,861	75.5	6211.8	219.11	3.83
	MAS	15x7x3	29.6	57.02	1687.8	8,790	58.3	6690	235.98	3.96
	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.