4" 5SwitchBack

By LawnDart on Jun 16, 2018

14  832  15

This is mostly used parts from other quads stuck in a new frame. I'd definitely pick different parts for a new build, as this was a bit tight getting everything together.

She is a bit goofy looking.

Need to figure out a better antenna mounting solution.


Part List


RotorX SwitchBack - RXSB Frame - Heli-Nation (2 builds)

Flight Controller

Full Size Flight Controllers (30x30) (40 builds)


Airbot Ori32 32Bit 25A 2-4S 20x20 4in1 ESC (82 builds)


4 x BrotherHobby Tornado T1 1407 3600Kv Micro Motor3600kv (194 builds)


10 Pairs Kingkong / LDARC 4045 4x4.5 Inch PC Fiber Glass Propellers CW CCW for RC FPV Racing Drone (7 builds)

FPV Camera

Caddx Turbo Micro F2 1200TVL 2.1mm CMOS 4:3 FPV Cam (78 builds)

FPV Transmitter

AKK FX3 Ultimate Mini 20x20 25-600mW VTX w/ Smart Audio - MMCX & U.FLDefault Title (113 builds)


nidici Foxeer Lollipop 3 FPV Antenna 5.8GHz RHCP Ommi 2.5dbi MMCX Antenna for FPV Quadcopeter TX/RX/VTX (Angle)(Red,Pack of 2) (22 builds)


TBS Crossfire Nano Receiver (SE) (337 builds)


RotorX 850mAh 5S 75C XT30 High Performance Lipo Battery


FrSky Horus X10 Radio (Amber)


DJI Digital FPV Goggles - Ultra Low Latency 720p 120FPS Digital HD (86 builds)

HD Camera

GoPro Hero5 Session (267 builds)

Misc Parts

Capacitor Vanity Label - USA (2 builds)

Radio Module

TBS Crossfire TX (10 builds)

Battery Charger

ISDT Q6 Plus 300W 14A MINI Pocket Battery Balance Charger (57 builds)

Soldering Iron

Weller WESD51 Digital Soldering Station
See Site


Lowepro QuadGuard BP X3 - Drone Backpack for 4 FPV Quad Racing Drones and 15" Laptop w/Exterior Mounts (Black) (24 builds)
Show stores (8)


Sign in to comment

BloodyLordV   Jul 22, 2018  

Have you noticed any advantage of the Z frame configuration? Hope it flies well, I'll building mine tomorow.

jcnz56   Jun 23, 2018  

Think it will hold up to crashes with 1407s? Its much lighter than any other 4 inch frames I know of. I wish there was an option for the 3d printed canopy to extend further to protect the camera

Quadlite   Jun 18, 2018  

Looks amazing! 139mm with 4 inch props? Thats insane. It looks like that could be setup pretty light if you wanted to. Just wondering though, Is there anything supporting the stack in a crash? Does is have alluminum standoffs too? Or just the standoffs in the stack? I'd be worried itd snap right in the middle.

Show 2 more comments
LawnDart   Jun 18, 2018 

Yeah, they're all 3" with the zeus. I heard that the Zeus didn't immediately explode and die on 5S though, so that is interesting.

Quadlite   Jun 18, 2018 

that is interesting, kinda like the babyhawk r running 4s on a 12amp 4in1 esc. its always made me nervous but it seems to work fine. motor and prop combinations will obviously matter too. None of those 6 blade racecraft props or itll bloe for sure lol. even gemfan flash 3052x3 draw a lot of amps.

Quadlite   Jun 22, 2018 

So i was looking into this frame and it looks like the production version is actually a little over 160mm. Thats how it fits 4 inch props. Only the prototype was 139mm and that one is for 3 inch props. I was wondering how that was possible. 139mm with 4 inch props seemed very odd. I think 145mm is the bare minumum that ive seen for 4 inch props. Most 4 inch quads are 160-180

Jodie Froster   Jun 22, 2018  

Nice cap'!!

FrenchB   Jun 17, 2018  

nicely done

BloodyLordV   Jun 16, 2018  

Does RotorX Switchback natively support 4 inches?

LawnDart   Jun 16, 2018 

Yeah. I was actually building it thinking that it was 3" only but I had a 4" prop on my bench and I stuck it on there.

BloodyLordV   Jun 16, 2018 

Thanks! Do you have any filght vids?

SecretAgent   Jun 16, 2018  

Your capacitor sticker makes the drone.

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