**RIP** Alien 5" v1.9

By GameSofter on Aug 02, 2019

2  59  4

Current Version: https://rotorbuilds.com/build/19305
Old Version: https://rotorbuilds.com/build/19282

In attempting to clean up the mid throttle oscillations and insane video noise I rebuilt the entire quad but still using the old parts. I cleaned all the motors, removed all the crappy soldering of the previous owner, put a cap on the main lead, and updated the firmware on the fc, esc, and osd. The way firmware updates work for old stuff makes me super grateful for the work developers put into making it mostly painless with modern hardware and software. Oh, and I put some sick stickers on there.

And you know what! It made a difference! Not massive like I had hoped though.

All of that work and the quad flew slightly better for about 2 weeks until I got an r9 failsafe and landed upside down on asphalt. I cracked the top and bottom plate and flattened a battery. :(
Luckily I had an idea of the parts I wanted for the next iteration. I just had to wait for the replacement parts from Australia...


Part List


Alien FPV Frame (2 builds)
See Site

Flight Controller

KISS FC - 32bit Flight Controller V1.03 (180 builds)


KISS 24A ESC Race Edition - 32bit Brushless Motor Ctrl (121 builds)


4 x Lumenier RX2206-11 2350Kv Motor (37 builds)

FPV Camera

Foxeer XAT600M HS1177 CCD - Rotorama (6 builds)

FPV Transmitter

TBS Unify Pro 5G8 HV (SMA) (572 builds)


TBS Triumph SMA (RHCP 2pcs) (533 builds)


FrSky R9 Slim+ SBUS Long Range 900MHz Receiver (21 builds)


RDQ Series 14.8V 4S 1500mAh 100C LiPo Battery - XT60 (37 builds)

Power Distribution

Legacy Alien 4oz Copper PDB Kit - RED (5 builds)


FrSky Taranis QX7 2.4GHz RC Transmitter - Black or WhiteBlack / No (179 builds)


FatShark Attitude V3 Headset (8 builds)

HD Camera

GoPro Session (55 builds)

Misc Parts

MICRO Minim Osd Minim Osd Mini OSD W/ KV Team MOD For Racing F3 Naze32 Flight Controller RC Drone FPV Racing (44 builds)

Misc Parts

Alien 4" 5" & 6" Side Load Session Mount (2 builds)

Misc Parts

Panasonic 1000uF 35V Low ESR Capacitor for ESC Noise Reduction (92 builds)

Video Receiver

AKK Diversity RX (2 builds)

Radio Module

FrSky R9M Transmitter Module (56 builds)

Battery Charger

RDQ Power Supply - 400w/16.7a/24v - Plug and Play for ISDT Chargers and Others (3 builds)

Battery Charger

IMAX B6AC V2 Professional Balance Charger/Discharger (US Plug) (3 builds)

Battery Charger

ToolkitRC M8 DC 300W 15A Battery Balance Charger Discharger for 2-8S Lipo Battery (12 builds)
Show stores (11)


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plibt   Aug 08, 2019  

I also had an R9 failsafe out of nowhere a few days ago and landed upside-down on the concrete! Lost my last remaining Session. Thinking about maybe putting redunant receivers on my quads.

GameSofter   Aug 12, 2019 

Did you happen to be running fport?

plibt   Aug 16, 2019 


GameSofter   Aug 16, 2019 

I have had a couple issues with F port and KISS. Maybe use normal s.port and sbus.

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