6S low KV @Druckbaer UL Race4

By Dark FPV on May 19, 2019

12  722  9

here is my second Ultralight with a bear print frame. Finally with 20x20 hardware and 6S support.
Since I never had a GoPro on my old Druckbäer because change in weight by 1/3 and the flight characteristics change dramatically.
I wanted to try the runcam split this time. I was warned about the high leatency but wanted to try it.
I was very satisfied with the Hyperlite engines last time. That's why I like to come back to it.
The Talon F7 offers in the 20x20 format everything that is standard on the 30x30. That's why the final decision here is also easy.
A real highligt is the new ESC in the mini format of Airbot creates the 4x45A and also bring the F3 processor, incidentally, the 6S capability.
The rest is the current hardware from TBS as FPV transmitter and CRSF receiver.

With 200g for the copter, I am also very happy. The LiPo then beats again with 170g to book.
So that in the end 370g for the departing Copter are recorded.


So the Talon Flight Controller first had to give way to the Matek F722 Mini. The on the Talon did not activate the RPM filter. The support is informed.

Edit 2

Plasmatree tuning from the copter.

First flight after the tuning.


Part List


Druckbär Ultralight 4 Race (2 builds)
See Site

Flight Controller

Matek Systems F7 FC Mini 20x20
See Site


Furling32 4in1 mini ESC - F3 32bit BLHELI ESC 4x45A


4 x Hyperlite 2204-1722KV HV EDITION (2 builds)


HQ Durable Prop 5043 3 Blatt V1S schwarz 2CW+2CCW Polycarbonat Propeller kaufen | FPV24.com (2 builds)
See Site

FPV Camera

RunCam Split 3 Series (89 builds)

FPV Transmitter

TBS Unify Pro32 Nano (2 builds)
See Site


Team BlackSheep TBS UNIFY PRO 5G8 Linear 5.8GHz Video TX/RX Antenna (3 builds)


TBS Crossfire Nano Rx (1491 builds)
See Site


TATTU R-Line 1050mAh 6s 95C Lipo Battery (50 builds)


FrSky 2.4G 16CH Taranis X9D Plus Transmitter SPECIAL EDITION w/ M9 Gimbals (48 builds)
See Site


2 x 10 Stück Zylinderkopfschrauben DIN 912 Titan Gr.5 M3X8
See Site

Misc Parts

Panasonic 1000uF 35V (FC-Series) Low-ESR Capacitor for ESC Noise Reduction (120 builds)

Video Receiver

ImmersionRC RapidFIRE w/ Analog PLUS Goggle FPV Receiver Diversity Module (179 builds)

Radio Module

TBS Crossfire Micro TX V2 (154 builds)

Battery Charger

Turnigy Reaktor 300W 20A 6S Balance Charger now with NiZN and LiHV
See Site


TBS Diamond Antenna (37 builds)


2 x FrSky Ersatzgimbal M9 Hall Sensor für Taranis X9D Plus kaufen | FPV24.com
See Site

Misc Supplies

Team BlackSheep TBS Glas ND Filter GoPro Session ND2 - ND4 - ND8
See Site
Show stores (15)


Sign in to comment

snick8467   May 09, 2020  

nice build. was the latency in the cam bad lime you heard?

Dark FPV   May 10, 2020 

Hello, So Runcam has released a total of 3 updates. With each, the image quality and latency were improved. There are of course better cams for full blood racers, but absolutely sufficient for freestyle, in my opinion.

snick8467   May 11, 2020 

thanks. I'd picked up a split micro, and then saw your comment

HK-AERIAL VTOL   Jun 01, 2019  

How do you like the 2204 1722 KV's?
I have the 2405.5 1722KV HV's, and on the HQ 5x4.8x1 V1S props it is very smooth and powerful (but honestly... those V1S are an unbelievable blade). I did not know that in a 24XX stator 'HV' means "You basically must use 6S!", and so my quad fell out of the air on 4S in a few turns, and felt very anemic on 5S; they are made for 6S (that's PD tellin' me). I distrusted a corner ESC and replaced it in the meantime. I now only suspect my battery voltage choice. Luckily I did just happen to have a new smaller 6S Turnigy Panther sitting around from a build that changed directions. Once I switched to 6S... no problems. I now have 2 low KV 6S Hyperlite quads and they are the jewels of my (freestyle) squadron. They feel like flying Cadillacs... big and powerful.

Dark FPV   Jun 03, 2019 

Hey and hello,
So I really like the 2204 1722 kv. They have power and are at the same time incredibly efficient. If you stay in the middle gas range, flight times of 8min are possible. Unbelievable, I wondered myself. The whole works of course only with 40 or 43er propeller pitch. And yes, I fly the little one with 6S. I have a similar build The Hyperlite 2204 2550kv @ 4S engines that can not compete. I can well imagine the 2405 or 07 Hypelite on Freestyle Coptern with GoPro and really fun.

IcarusIX   May 21, 2019  

I can imagine how agile this is, jheez. looks like it could be really efficient too, being light and a low power setup have you tried 4s?

Dark FPV   May 22, 2019 

Hello, that's right, the little one is a real buzzing power package. But no, I've never tried it with 4S. But I'll do that with my old 850mAh lipos thanks for the hint. The weight will be reduced by about 70g. Could be interesting.

MATEKMAN   May 21, 2019  

very good quality screw ! ;)

Dark FPV   May 21, 2019 

Thanks man, the structure has also devoured for several hours. Since every mm had to be used.

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