Bratan 🐢

By sergetania on Aug 11, 2018

6  944  5

Build #10 - biggest and most powerful quad I have built. I couldn't pass on the Acrobrat frame. You can see the thoughts and attention to details that went into the design. I hope it's not too big for a backyard drone.

The original plan was to go with Airbot F4 Nano V6 and Ori32 ESC but I couldn't make the motor #4 spin (you can still see it in the pictures). I saw the FC had mapping issues in the past that were supposed to be resolved and I tried everything I could think of to no avail. Anyone has any insights? For now, the brat will fly with CLRacing F4 Mini and Spedix, hoping the ESC will hold up. Update: someone just mentioned that the fc comes in with incorrect BF firmware and an updated instructions sheet which I didn't get contains this information. Hopefully this solves the problem. Now I am just curious if the Spedix can handle the motors so I will give it a go before changing the stack back.

Total weight without the battery is 211 g. Heavy!

It's raining like crazy today. Stay tuned for videos from the Turtle. Don't know about the video quality yet but it's nice to have a single board and the lens are huge!

Finally, untangled the mess which is the Airbot fc and esc combo and the drone is flying well with the Airbot stack.

Photos

Part List

Frame

Ummagawd Acrobrat 3" Frame by Tommy Tibajia (30 builds)
Rotorriot.com
$44.99

Flight Controller

Airbot Omnibus F4 Nano V6 20x20 Flight Controller w/ LC Filter (51 builds)
Racedayquads.com
$29.99

ESCs

Airbot Ori32 32Bit 25A 2-4S 20x20 4in1 ESC (78 builds)
Racedayquads.com
$44.99

Motors

4 x BrotherHobby Tornado T1 1407 4100Kv Micro Motor (14 builds)
Racedayquads.com
$63.96

Propellers

Gemfan 3052 - 3 Blade Propeller - Black PC (Set of 4) (7 builds)
Getfpv.com
$2.99

FPV Camera

Caddx Turtle 1080p 60fps Mini HD FPV Camera w/ DVR - Red (35 builds)
Getfpv.com
$59.99

FPV Transmitter

VTX - All Video Transmitters (517 builds)
Racedayquads.com
$24.99

Antenna

VAS 5.8GHz ION Antenna (RHCP) (8 builds)
Getfpv.com
$16.99

Receiver

FrSky R9 Slim+ 915MHz Long Range Receiver w/ 2pcs Dipole T Antennas (16 builds)
Getfpv.com
$28.99

Radio

FrSky X-Lite 2.4GHz Radio Controller (Red) (63 builds)
Getfpv.com
$121.99

Goggles

FatShark Dominator HDO FPV GogglesRechargeable 1800mah Pack (67 builds)
Racedayquads.com
$499.99

Misc Parts

Ummagawd Acrobrat Accessory Kit (4 builds)
Brain3d.co
$18.00

Misc Parts

TBS CROSSFIRE IMMORTAL T ANTENNA (4 builds)
Airbladeuav.com
See Site

Video Receiver

ImmersionRC rapidFIRE w/ Analog PLUS Goggle Receiver Module (79 builds)
Pyrodrone.com
$149.99

Radio Module

Frsky R9M Lite - Radio Transmitter Module (Black) (9 builds)
Getfpv.com
$44.99

Soldering Iron

Hakko FX888D-23BY Digital Soldering Station FX-888D FX-888 (blue & yellow) (7 builds)
Amazon.com
$99.42
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Discussion

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Rc Exp   Aug 13, 2018  
1

You need to put him in a diet man! It is so awesome 👍 you need to get the sharpness on the turtlet to 0 or else it looks too digital and without enough motion blurr

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Rc Exp   Aug 14, 2018 

I'm flying with a 4"quad with similar weigh and a bit more power and it is kind of nice to be heavier but I love more speed cornering efficiency and all the advantages of a light quad

sergetania   Aug 14, 2018 

What is the kv rating on the motors? Fast spinning motors help adding a zip when turning.

I wasn't able to fly the brat much because everything is flooded but I tried it and it has plenty of power, very easy to control and stable at the same time. Very different from a light quad and I like it a lot. I'd say it is much easier to fly than an 1106-powered massive droner. Never thought a heavier quad is so much fun.

Rc Exp   Aug 15, 2018 

the motors are 4300kv XD a bit too much buthey. idk I'm not completely sold because I prefer racing so light is my thing but still it is kinda easier. Hope u get to fly soon

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