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Old Nov 08, 2013, 03:25 AM
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Australia, QLD, Brisbane
Joined Sep 2012
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Data
Sunnysky V2216 800KV Thrust Test

Bench Test of the Sunnysky V2216 800KV motor with 8 props on 3S & 4S.

Equipment used...
DIY thrust stand and scales
Eagle Tree data logger V3 inc RPM sensor
Hobbyking 30A Blue Series ESC - SimonK 2013-05-15 firmware
3S 9600mAh and 4S 12,000mAh lipo packs



Props...
1. APC 10x4.5MR
2. APC 10x5.5MR
3. APC 11x5.5E Thin Electric
4. Himodel FC 11x5.5 Hyper Drive (APC clone)
5. Carbon Fibre Graupner Style 11x5
6. Gemfan Carbon / Nylon 11x5
7. Gemfan Carbon / Nylon 10x5
8. Gemfan Carbon / Nylon 1045




Notes...
- The test was aimed at 4S, this motor could turn bigger props on 3S
- Lipos were fully charged so somewhat non standard voltages
- The APC 11x5.5E was the only prop balanced out of the packet. All others were OK, except the Gemfans which were very unbalanced.
- Comparing the APC11x5.5E and the plastic clone is very interesting. The difference can be heard in the video. Incredible 225 gram thrust difference between two props that look identical. APC all the way
- The APC 10x5.5MR is almost identical in performance to the 10x4.5MR. Small amount more performance but less efficient.
- The APC multirotor props have slightly less thrust than a slow fly but are more efficient, and are more rigid.
- The carbon high speed (Graupner style) prop was very quiet, efficient and punchy! It would absolutely rock on a higher KV 2216 version
- KV was measured around 770KV by a HK KV tester but the Eagle Tree figures worked out to 875-895KV. I don't know which is more accurate, I would assume the 770KV figure. The right number of poles was selected so go figure?
- The Eagle Tree thermometer was placed in the windings and too affected by air temp. A IR thermometer will be used next time. The comments are a better guide on temp.
- Doc files of the charts are attached


- 4S -



4S - Sunnysky V2216 800KV - Thrust Test (4 min 45 sec)



- 3S -



3S - Sunnysky V2216 800KV Thrust Test (4 min 43 sec)



All Session Comparison
The order of sessions in this chart is... Prop, 3S then 4S etc... The large RPM spikes are errors from the sensor.



I am building a speed quadcopter for FFF and will choose the APC 11x5.5E.
It is powerful, efficient and fast.
It is heavy though, notice it's spool down time and high acceleration current draws.
This prop is just too much for the motor on the bench in static air, hopefully in free air it will rock!
This copter is not for flips but it will be built for size and speed
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Last edited by Soma; Nov 08, 2013 at 04:17 AM.
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