Tempest 1708-1270 Performance Test Data
	Magnets	Motor Wind		Motor Kv		No-Load Current		Motor Resistance		I Max	P Max (3S)
	12-Pole	12-Turn Delta		1270 RPM/Volt		Io = 0.37 Amps @ 10v		Rm = 0.387 Ohms		8 Amps	90 W
	Stator	Outside Diameter		Body Length		Total Shaft Length		Shaft Diameter		Motor Weight
	9-Slot	21.0 mm,  0.827 in.		19.5 mm,  0.768 in.		29.5 mm,  1.161 in.		2.00 mm,  0.079 in.		21.2 gm,   0.75 oz
	Test Data From		Input	6.0 V	8.0 V	10.0V	12.0V	Measured Kv value		Measured Rm Value
	Sample Motor		Io Value	0.310 A	0.335 A	0.371 A	0.405 A	1309 RPM/Volt @ 10v		0.3871 Ohms
	2-cell Li-Po Test Data
	Prop	Prop	Li-Po	Input	Motor	Input	Prop	Pitch Speed	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Cells	Voltage	Amps	Watts	RPM	in MPH	Grams	Ounces	Grams/W
	APC	7x4-E	2	7.4	3.59	26.6	7,351	27.8	210	7.42	7.91
	APC	7x4-SF	2	7.4	3.56	26.3	7,366	27.9	204	7.19	7.74
	APC	7x5-E	2	7.4	4.33	32.0	6,840	32.4	198	6.99	6.19
	APC	7x5-SF	2	7.4	4.12	30.5	6,965	33.0	210	7.39	6.86
	APC	7x6-E	2	7.4	4.62	34.2	6,634	37.7	206	7.27	6.03
	APC	7x6-SF	2	7.4	4.70	34.8	6,575	37.4	200	7.04	5.75
	APC	8x3.8-SF	2	7.4	4.94	36.6	6,410	23.1	272	9.59	7.43
	APC	8x4.7-SF	2	7.4	5.41	40.0	6,065	27.0	282	9.94	7.05
	APC	8x6-SF	2	7.4	6.35	47.0	5,241	29.8	255	9.00	5.43
	APC	9x3.8-SF	2	7.4	5.81	43.0	5,650	20.3	298	10.50	6.93
	APC	9x4.7-SF	2	7.4	6.22	46.0	5,321	23.7	304	10.73	6.61
	APC	9x6-SF	2	7.4	7.33	54.2	4,360	24.8	280	9.87	5.16
	APC	9x7.5-SF	2	7.4	8.27	61.2	4,095	29.1	263	9.29	4.30
	APC	10x3.8-SF	2	7.4	7.09	52.5	4,557	16.4	316	11.15	6.02
	APC	10x4.7-SF	2	7.4	7.80	57.7	4,421	19.7	334	11.78	5.79
	HQ	6x4.5-BN	2	7.4	3.66	27.0	7,323	31.2	186	6.56	6.88
	HQ	7x4.5-C	2	7.4	4.15	30.7	6,989	29.8	222	7.83	7.23
	3-cell Li-Po Test Data
	Prop	Prop	Li-Po	Input	Motor	Input	Prop	Pitch Speed	Thrust	Thrust	Thrust Eff.
	Manf.	Size	Cells	Voltage	Amps	Watts	RPM	in MPH	Grams	Ounces	Grams/W
	APC	5x4.3-E	3	11.1	3.99	44.2	11,515	46.9	219	7.73	4.95
	APC	5x4.5-E	3	11.1	4.05	44.9	11,462	48.8	213	7.53	4.75
	APC	5x4.6-E	3	11.1	4.13	45.9	11,400	49.7	229	8.09	5.00
	APC	5.25x4.75-E	3	11.1	3.86	42.8	11,600	52.2	194	6.84	4.53
	APC	5.25x6.25-E	3	11.1	5.02	55.7	10,705	63.4	173	6.11	3.11
	APC	5.5x4.5-E	3	11.1	4.02	44.6	11,469	48.9	204	7.19	4.57
	APC	6x4-E	3	11.1	4.39	48.8	11,181	42.4	251	8.85	5.15
	APC	6x4.3-E	3	11.1	5.67	63.0	10,222	41.6	322	11.37	5.12
	APC	6x4.5-E	3	11.1	5.54	61.5	10,296	43.9	324	11.41	5.26
	APC	6x5.5-E	3	11.1	5.57	61.9	10,277	53.5	234	8.26	3.79
	APC	6x6-E	3	11.1	5.61	62.2	10,151	57.7	260	9.16	4.17
	APC	7x4-E	3	11.1	6.16	68.4	9,682	36.7	371	13.09	5.43
	APC	7x4-SF	3	11.1	6.23	69.2	9,652	36.6	364	12.83	5.26
	APC	7x5-E	3	11.1	7.08	78.5	8,891	42.1	342	12.06	4.35
	APC	7x5-SF	3	11.1	6.91	76.7	9,013	42.7	357	12.61	4.66
	APC	7x6-E	3	11.1	7.28	80.8	8,617	49.0	355	12.50	4.39
	APC	7x6-SF	3	11.1	7.68	85.2	8,310	47.2	326	11.51	3.83
	APC	8x3.8-SF	3	11.1	7.94	88.2	7,963	28.7	436	15.39	4.95
	APC	8x4.7-SF	3	11.1	8.85	98.3	7,825	34.8	469	16.53	4.77
	HQ	6x4.5-BN	3	11.1	6.12	67.9	9,825	41.9	326	11.50	4.80
	HQ	6x4.5-C	3	11.1	4.77	52.9	10,905	46.5	303	10.67	5.72
	HQ	7x4.5-C	3	11.1	6.87	76.3	9,172	39.1	384	13.53	5.03
	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, at an altitude of
	584 feet above sea level.  The test voltages used are based on the standard output of a Li-Po battery under load, which is 3.70 volts
	per cell.  If you are using a battery that is larger in capacity than normal, or has a very high C-rating, then your actual voltages will
	be higher than those shown in the chart, and this will result in a higher current and power value for every prop used.  You should
	always test your actual power system with a watt meter before flying your model to make sure that you are not exceeding the
	recommended current and power ratings of the motor being used.  The prop recommendations in this chart assume that the motor
	receives adequate cooling throughout its operation.  If your motor is being used inside a cowl or fuselage, you must ensure that
	the motor receives sufficient airflow, and does not get too hot during operation.  It is always best to use a prop size that pulls no
	more than 80% of the motors maximum recommended current value to ensure safe operation under all conditions.