|09-13-2015, 06:01 PM||#1|
I am: Chris D
Join Date: Jan 2015
Location: Pickering Ontario
Radio of choice:
# of RCs: 2
Feedback: 0 / 0%
Total Props: 0
Budget vs Tmotor props for professional aerial video test
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I decided to do a little bench test on 2 brands of 16" props.
Tmotor CF 16x5.4 props are about $45usd each and have a double wall style of airfoil with a cork core.
Foxtech Supreme Lite CF 16x5.5 props are no longer sold but they were about 1/3rd the price as tmotor and have a single wall style airfoil.
Both props were balanced by me on a dubro. The tmotor required very little balancing, the FSL a little more.
Motor, U7-490kv with T80A esc. Makeshift test rig using digital gram scale and inline watt/volt meter. Smart phone for vibration and sound testing.
I will note, both props had the exact noise level in decibels and my vibration readings were very close. Tmotor was only marginally better. There was no obvious winner in the vibration tests.
Each prop was tested with a fresh battery. I dialed up the thrust as close as possible to the following thresholds (1000, 1500, 2000, 2500 and 3000 grams of thrust) and took note of amp draw.
1000 grams Tmotor 1028 grams @ 6.04 Amps..............FSL 1003 grams @ 6.67 Amps
1500 grams Tmotor 1482 grams @ 8.86 Amps..............FSL 1497 grams @ 10.87 Amps
2000 grams Tmotor 2021 grams @ 12.87 Amps............FSL 1992 grams @15.26 Amps
2500 grams Tmotor 2514 grams @ 17.42 Amps.............FSL 2515 grams @ 20.79 Amps
3000 grams Tmotor 3054 grams @ 22.24 Amps............FSL 2979 grams @ 27.40 Amps.
My conclusion of this highly unscientific test.
Tmotor will give you longer flight times I believe at least 10% and possibly up towards 20%.
Will tmotor give you better footage on a properly built and balanced rig with proper vibration isolation and a well dialed in gimbal??? I'm not so sure.
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