By miromir237 on Jan 15, 2018

5  761  3

I got to hypetrain of Armattan Rooster. I wanted to appreciate the people who innovate by buying their product and not just a clone. I might buy a Reverb in the future aswell but let's get back to Rooster.

I opted for 6" version because I just like 6" more. I feel more confortable. I did not really had this thought out. I had some parts unsued (FlameF4, XSR eg.) in my shelf so it was a bit tricky to build for me. Especially the FlameF4 is bit hard to solder because the pads are small.

I think I must have missed something in Chris's build video because I did not managed to put the sunk nuts correctly and the carbon delaminated a bit. Some of the flat had bolts were not good and I had to replace them with steel ones. I still get bit of slop in arms when I pull really hard. I decided to leave it like that because I could not tighten the screws much harder. Other than that all went well.

I am not very happy with the antenna mounting solution. I would rather have them in similar position as on Reverb. I will also have to make my power leads longer because now it is bit difficult to mount my Xiaomi Yi. I am also bit bothered by the fact that I can not lower my fpv camera below the protective stand off. I guess I will have to learn to fly faster.

The build was harder then I expected. I was bit disappointed by the dry weight (385g) when I first saw it. I am not sure whether 4in1 esc would help to ease the build. May be a little but then I would have to place Matek VTX-HV elsewhere. Also the issue with bolts and delamitation did not help much to brighten my mood.

On the bright side: I decided to rotate FC 180° to have xt60 in the front as Armattan does it. Because of that I had to re-map the motors in BTFL which was a new experience for me and I am glad I managed that. The low profile copter looks really nice and sleek. Titanium shines and it flies (only hover tested).

I look forward flying it.
Notes: I checked the weight. AUW is 660g with Xiaomi Yi and 1500mAh 4s pack. That does not look that bad when compared to 667g of my MartianII 250 with same load. I have also pro-longered the power leads on xt60 so it does not interfere with HD cam.


Part List


Rooster (133 builds)

Flight Controller

F4 FLAME Race Spec STM32F405 Flight Controller Built-in BETAFLIGHT OSD 5V BEC PDB Current Sensor (20 builds)


4 x HGLRC BS30A V2 30A DSHOT600 BlHeli-S 2-5S ESC


4 x T-Motor F40 III 2306 2400Kv MotorDefault Title (20 builds)


Hq 6040 tri prop ( black ) (5 builds)

FPV Camera

Page Not Found - (78 builds)

FPV Transmitter

Matek 5.8G 40CH 25/200/500mW switchable Video Transmitter VTX-HV with 5V/1A BEC Output (94 builds)


MenaceRC Stubby Raptor V2 Antenna 5.8Ghz Omni Antenna (7 builds)


FrSky R-XSR Ultra SBUS/CPPM D16 16CH Mini Redundancy Receiver 1.5g for RC Multirotor FPV Racing Drone (845 builds)


4S 1500mAh 75C Acehe LiPo battery (3 builds)


FrSky Taranis X9 Lite 2.4GHz 24CH ACCESS ACCST D16 Mode2 Classic Form Factor Portable Transmitter for RC Drone (10 builds)


(PRE-ORDER) DJI Digital FPV Goggles - Ultra Low Latency 720p 120FPS Digital HD (73 builds)

HD Camera

GoPro Hero5 Session (196 builds)

Radio Module

FrSky R9M Transmitter Module (69 builds)

Battery Charger

ISDT Q6 Plus 300W 14A MINI Pocket Battery Balance Charger (56 builds)

Soldering Iron

TS100 Portable Programmable Smart Soldering Iron (161 builds)


Torvol Quad Pitstop Backpack PRO (4 builds)

Misc Supplies

TrueRC X-AIR 5.8GHz Crosshair Antenna (RHCP) (4 builds)
Show stores (10)


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All Day Air   Jan 15, 2018  

In betaflight you can tell it that you have rotated the fc 180 instead of remmapping the motors, gyro or acc may have issues if you dont set that. Not sure how you did it, happy flying looks great! Waiting on my rooster 😊

miromir237   Jan 19, 2018 

Thanks for hint. I will look into that. Remapping resources and telling FC that YAW axis is 180° worked for me.

J.king216   Jan 16, 2018  

I had the same problem with the press nuts. The flat head screws are just not strong enough to handle the force. But I just hammered them in.

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