Sub-200g Ultra-thin 5inch

By kera on Jan 15, 2021

13 330 8

The battery is 3s, but due to its light weight, it flies fast and quietly.

The world's drone law allows freedom of aircraft weighing less than 250g, but in Japan the regulation is less than 200g.
I build it to fit less than 200g which is not regulated.

Photos

Part List

Frame	BETAFPV X-Knight Carbon Fiber Frame Kit (11 builds) Getfpv.com	$16.99
Flight Controller	Upgrade 25.5x25.5mm JHEMCU GHF411AIO Pro F4 OSD Flight Controller w/ 5V 9V BEC Built-in 35A BL_S 3-6S 4in1 ESC Support DJI Air U (10 builds) Banggood.com	$68.99
Motors	4 x FPVCycle 23mm Short Motor - THE Cinewhoop motor (36 builds) Fpvcycle.com	$79.96
Propellers	DAL T5051C Cyclone Tri-Blade Translucent (3 builds) Dalprops.com	$1.99
FPV Camera	Caddx Turbo EOS2 4:3 1200TVL 2.1mm 160 Degree 1/3 CMOS Mini FPV Camera NTSC/PAL For RC Drone (40 builds) Banggood.com	$14.90
FPV Transmitter	TBS Unify Pro32 Nano 5G8 V1.1 500mW Video Transmitter (396 builds) Getfpv.com	See Site
Receiver	FrSky XM+ SBUS Mini Receiver (1149 builds) Getfpv.com	See Site
Batteries	Gaoneng GNB 11.1V 550mAh 80/160C 3S Lipo Battery XT30 Plug For Eachine Lizard95 FPV Racer Banggood.com	See Site

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Discussion

RotorHead Jan 16, 2021

Very nice UL. Use UmmaGawds 2004 motors and UL props to save say another 15 to 20 grams an take a slightly bigger battery. Did you test it with a 4S, too? My PodRacer has 2004 3150KV and becomes insane on 4S.

kera Jan 19, 2021

Thank you for the very good information
I tried 4s650mah with this build, but the flight performance deteriorated ...
The best one is the 2004 motor?? I want it!😁

RotorHead Jan 19, 2021

Search for UmmaGawd AeroLite 2004. There are also 2004 from BrotherHobby, BetaFPV, HGLRC and some more. I never tested your motors, which are probably a decent option like xing 2203.5 would be, too. I wouldn`t expect more torque from 2004 due to smaller stators. 7 grams lighter per motor. Not that much, but 28 grams for more capacity.

kera Jan 20, 2021

Thank you for your useful knowledge!
It's a big difference that it's 7 grams lighter with the same torque😮
I will buy 2004 and try it

Joshua_A Jan 17, 2021

NICE BUILD!! I see your running "props out" do you like it better that way??
Also you could try the T mounts to cut a few grams... and invest that in a 4s ; )

kera Jan 19, 2021

I like "props out", aiming not to wind up dust on the camera.
I also wanted a T-mount, but I bought this motor by mistake in ordering😂
I think you're right, and I want to make a drone with good performance in 4s.

chawks Jan 16, 2021

how long is the flight time with such a small battery?

kera Jan 19, 2021

When used in race practice, it flew up to 3 and a half minutes🙂

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