Sub 250g 3" CheaterKwad

By Sub 250g FPV on Jun 29, 2019

8  3,128  5

The secret to this 3" CheaterKwad build is the tiny ViFly camera switcher.

GepRC Cygnet 3" front camera cage also fits to the rear (two screws on the bottom and four screws on the top) so to get a second camera cage you will have to buy an extra frame. The good news is that you have a spare top and bottom plate in case you break one.

The motor mounting pattern on the GepRC Cygnet 3" is 9mm x 9mm, unless you buy the Pro Version which is 12mm x 12mm

Dry Weight is :-130g

I used a GNB 550mAh 3s Battery and get about 4 minutes of flight time.

Tip :- Use a shallow angle for both cameras, if you don't you will just film sky when flying backwards (You also have to alter your flying style as you will use more Yaw and less Roll).

This is my first Rotorbuilds project so if you have any questions or want more pictures please just ask.

I am interested in all Sub 250g Quads, Check out my YouTube Channel Sub 250g FPV for :-

Watch Gal Kremer's Video on the ViFly Camera Switcher and if you want to buy one please to use his Affiliate Link :-

And Joshua Bardwell's Video on how to set up your CheaterKwad/Transmitter :-

Flight Footage


Part List


2 x Geprc Cygnet CX2 CX3 2 Inch 115mm / 3 Inch 145mm 3mm Arm Carbon Fiber & 7075 CNC Frame Kit for RC Drone FPV Racing (9 builds)

Flight Controller

6.5g 20x20mm HGLRC XJB F428 Micro F4 AIO OSD BEC Flight Controller & 28A Blhel_S BB2 2-4S 4 in 1 ESC (49 builds)


4 x GEPRC GEP-GR1206 4500kv Motor (5 builds)


HQProp 3x3x3 T Mount Props Light Purple
See Site

FPV Camera

Caddx Turtle V2 1080p 60fps FOV 155 Degree Super WDR Mini HD FPV Camera OSD Mic for RC Drone (73 builds)

FPV Transmitter

TBS Unify Pro32 Nano VTX (8 builds)
See Site


Lumenier Micro AXII 5.8GHz Antenna (RHCP) (U.FL) (4 builds)
See Site


FrSky XM Plus EU-LBT 16CH Tiny Receiver with SBUS (15 builds)
See Site


GNB 550mAh 3S 80C LiPo Battery (XT30)
See Site


DJI Digital FPV Remote Controller - Mode 2 (60 builds)


FPV Drone Parts for – FPV Quad Drone Shop – Drone Racing Store (131 builds)

Misc Parts

Foxeer Micro Predator 4 Super WDR 4ms Latency 1000TVL FPV Racing Camera with OSD for RC Drone (7 builds)

Misc Parts

Panasonic 1000uF 35V (FC-Series) Low-ESR Capacitor for ESC Noise Reduction (120 builds)

Misc Parts

VIFLY Cam Switcher - How To Easily Switch Between Two FPV Cameras
See Site


TrueRC Singularity 5.8GHz Stubby Receiver Antenna 4 Pack for DJI - LHCP (3 builds)
Show stores (6)


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newtrojan   Dec 12, 2019  

Is it possible to convert it to a DJI FPV build

Sub 250g FPV   Dec 12, 2019 

Yes there is room to have a stack at the front and put the DJI Air Unit at the Back, Here are a few of my Sub 250g DJI Digital HD FPV Builds :-

newtrojan   Dec 12, 2019 


I am definitely looking to build a sub 250 gram, would they be powerful enough to carry a go pro session. I know it will incerase the weight but just wondering.

Sub 250g FPV   Dec 12, 2019 

A Go Pro Session would put you over 250g, I could add a GOPRO to my 4" but it wouldn't fly very well at all. You really need at least a 1408 motor to give you the extra power to carry one and still have your quad fly well.

TMac   Jun 29, 2019  

Great Build and post pictorial! Nice job!👍

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