ThaBrat

By q-ratz on Dec 09, 2018

5  671  5

This is probably a pretty normal and boring acrobrat, but it flies really well. Tried a bunch of different props on this one and finally settled with the RX3044, which are essentially Gemfan Flash with lesser pitch.

UPDATE1: Switched Motors to the new iFlight Tachion T1408S for T-mount stle props. They shred the lipos, but are significantly more powerful
UPDATE2: Had a problem with my airbot nano FC. Gyro seemed to be dying. Since i had a HGLRC flight stack laying around i switched the whole stack.
UPDATE3: The AKK VTX was causing really badly distorted video to the piont that the rig was unflyable. That is my 3rd AKK VTX dying, therefore making my personal score with AKK: 3 Dead - 1 Alive... That sheds a bad light on AKK's quality control.
UPDATE4: Switched to HQ 3x3x3T props.

Photos

Part List

Frame

The Acrobrat by Ummagawd (33 builds)
Pirofliprc.com
$44.99

Flight Controller

HGLRC F420 stack F4M3 FC 20A 2-4S 4in1 ESC for FPV racing drone (2 builds)
Hglrc.com
$62.99

Motors

4 x Tachyon T1408S FPV Racing Motor
Iflight-rc.com
$47.96

Propellers

HQProp T3X3X3 PC Propeller (Set of 4) (36 builds)
Airbladeuav.com
$2.18

FPV Camera

Caddx Turtle 1080p 60fps Mini HD FPV Camera w/ DVR - Red (53 builds)
Getfpv.com
$59.99

FPV Transmitter

ImmersionRC Tramp HV 6-18V 5.8GHz 1mW to>600mW Video Transmitter internationale Version V2 (20 builds)
Banggood.com
$35.99

Antenna

Lumenier AXII U.FL 5.8GHz Antenna (RHCP) (148 builds)
Getfpv.com
$14.99

Receiver

Frsky XM+ Micro D16 SBUS Full Range Mini Receiver Up to 16CH for RC FPV Racing Drone (1423 builds)
Banggood.com
$13.69

Batteries

Tattu 850mAh 14.8V 75C 4S1P Lipo Battery Pack with XT30 plug (67 builds)
Flexrc.com
$18.86

Radio

FrSky Taranis X9D Plus 2.4GHz ACCST Radio & X8R Combo w/ case (Mode 2) (54 builds)
Getfpv.com
$244.99

Goggles

Fat Shark Dominator HD2 Terminator Edition FPV Goggles (4 builds)
Getfpv.com
$399.99

HD Camera

GoPro HERO5 Session (267 builds)
Getfpv.com
$199.99

HD Camera

Foxeer 4K Box Action Camera SuperVision (10 builds)
Foxeer.com
$169.99

Misc Parts

HGLRC AMASS XT30 4S 16.8V 80A Current Sonsor for RC Drone FPV Racing (2 builds)
Banggood.com
$5.50

Misc Parts

RunCam RC25G FPV Lens 2.5mm FOV140 Wide Angle (4 builds)
Getfpv.com
$12.99

Video Receiver

ImmersionRC rapidFIRE w/ Analog PLUS Goggle Receiver Module (145 builds)
Getfpv.com
$149.99

Radio Module

TBS Crossfire Micro TX V2 (115 builds)
Team-blacksheep.com
$69.95

Battery Charger

iSDT SC-620 500W 20A MINI Smart LCD Battery Balance Charger (3 builds)
Getfpv.com
$63.74

Soldering Iron

TS100 Ltkolben KIT + TS-I inkl. XT60 Kabel (171 builds)
Flyingmachines.de
$76.40
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Discussion

Sign in to comment

Thomaat   Dec 24, 2018  

sick build man! what lens are u using?

q-ratz   Dec 24, 2018 

That's the Runcam RC25G.

effwerd   Dec 21, 2018  

What do you think of those motors? And what's the printed part on the Caddx board? Nice build!

q-ratz   Dec 23, 2018 

Hi there. The sd card protector is this one: https://www.thingiverse.com/thing:3068927
Regarding the motors: it highly depends on the props. on the gemfan 3052 flash they produce a weird sound and are a bit harder to tune. the I went for the HQ 3x4x3v1s, which flew perfectly, but especially when it got colder outside broke to easy. Then I tried the schubkraft 3x3x3, which are basically identical to the older HQ 3x3x3. Those were very smooth and easy to tune but immensely lacked power. Now I use the RotorX 3044, which are brilliant. they are very light and bend instead of break. they are basically gemfan 3052 with lesser pitch, which seems to have caused the weird sound.
The only issue I have with the motors is, that they are a little heavier than the brat motors or the emax 1306b. when my motors break I will probably go for the brat motors. not because of performance, just for the weight. the acrobrat frame is already pretty heavy.

q-ratz   Dec 23, 2018 

Come to think of it: When these motors fail I will take some of those 1407 or 1507 2800kv motors and go 5S.

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