Five33 Switchback 20x20

By beeb on Jan 13, 2020

21  2,506  10

I've been flying box-frames with vertical arms for a while now, starting with the Karearea Talon 2 years ago and following up with my own design (VertiX sold by I love the feeling that you get in cornering, which I could not replicate with standard frames. The downside of box-frames is their high maintenance requirements. Any part swap takes forever and small intricate carbon pieces have a tendency to break. Not to mention the weight which was quite high in order to stay resilient to crashes.

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Meet the Five33 Switchback, a frame that promises the sweet compromise of a sturdy, light standard frame base with the addition of Side Force Generators (SFGs) to provide that cornering grip that people flying vertical arms frames love. I immediately knew I had to try it!

The frame only supports Nano sized cameras because of it's narrow body and standoffs spacing. It's however in theory made for both 20x20mm stacks and 30.5x30.5mm stacks. I did not try to build one in 30.5mm yet, but will in the future since I still have a bunch of FCs and ESCs for that size lying around.
I did not fly it a lot yet, but I love the cornering and can definitely feel that it's light! I shaved off more than 60g compared to my setup from last year.

A small thing to note is that these motors do not perfectly fit the SFG mounts so I had to file the carbon "T" joints slightly to not interfere with the motor base.

Enjoy a few pictures from the build below:


Part List


Switchback Classic Frame Kit (10 builds)
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Flight Controller

FuriousFPV RACEPIT MINI OSD Blackbox Flight Controller For FPV Racing (2 builds)


Aikon AK32PIN 4-in-1 35A 6S 20x20 (55 builds)


4 x X-NOVA LITE RACING 2207-1800KV (Unité) (2 builds)
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Gemfan 51466x3 Hurricane Durable (4pcs) MCK (71 builds)

FPV Camera

Foxeer Predator Nano 5 FPV Camera - Get Yours Today! - RMRC (2 builds)

FPV Transmitter

TBS Unify Pro32 Nano 5G8 V1.1 VTx Video Transmitter (399 builds)


TBS Triumph Pro (U.FL RHCP) (32 builds)


TBS Crossfire Nano Rx FPV Long Range Drone Receiver (1491 builds)


SWAY-FPV LiPo 6S 22.2V 1350mAh 200C XT60


FrSky Taranis Q X7 Int'l Version Digital Telemetry Radio System 2.4GHz ACCST (Black-no plugs) (2 builds)



HD Camera

GoPro HERO7 Black Action Camera (102 builds)

Video Receiver

ImmersionRC rapidFIRE w/ Analog PLUS Goggle Receiver Module (178 builds)

Radio Module

TBS Crossfire TX (15 builds)

Battery Charger

Batería Tattu Fun Fly 1300 mAh 14.8V 100C 4S1P - Iha Race (5 builds)
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Soldering Iron

MINI TS100 Digital OLED Programmable Interface DC5525 Soldering Iron Station Built-in STM32 Chip (265 builds)


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Briefly Flying FPV   Jan 20, 2020  

Awesome build man! Did you print the 3dparts yourself in black or they offer them in that color?!


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beeb   Jan 29, 2020 

Sure, here it is. You can mirror it to print the other side All other parts are from

ziri_judason   Aug 02, 2022 

@beeb please can you upload stl of T-antenna holder?

makaluch   Jun 07, 2020  

I have the Talon Gigawatt version of that esc and Im having trouble dealing with the heatsink and spacing. The pics show different gummies so Im guessing you addressed it. How did you space your stack on the final build?

beeb   Jun 08, 2020 

Hey there! Yes I also had issues with spacing so I added some short plastic tubes (unthreaded standoffs) I had laying around in my small parts box. To be honest I don't remember where I got them from, probably an older stack. If you find some tube with inner diameter 3mm you could probably cut 4 pieces to the same length and use that. Maybe antenna tubes or something similar.

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