KINGKONG 6040 propeller test with ZMR 250 + 4s

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I am simply blown away by these props and they are cheapest among 6 inch, AFAIK.
Bought at Banggood.com
Frame ZMR 250
- Flip32+ flight controller
- ZTW spider 18a opto ESC (blheli 14.1)
- Emax 2204 2300KV motors
- FrSky D4R-II Rx
- FrSky Taranis Tx
- Aomway 5.8ghz 200mW VTx
- KINGKONG 6040 propellers
- Sony Super HAD II 600TVL FPV cam with 2.8mm lens
- Mobius camera v3 C2 lens with protection case from BMSweb
- 4s lipo battery 1800 65-130c turnigy nano-tech
- AUW 700g
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