Speed Addict 3"

By gzuk on Apr 21, 2017

16 4 3

I wanted to build a very light weight Speed Addict Superlight 3" that is still running 1407 motors and 4S battery. The flight controller stack has OSD built into the FC board and a 20 amp 4 in 1 that supports DShot600.

Update: the esc in this stack does not seem to hold up to 4S. Planning to replace with a RF Millivolt and Spark.

Update: Flight controller and ESC has been replaced with Raceflight Millivolt and Spark. This board and ESC combo requires a capacitor on the power leads. It flies great now and it only added a few grams to switch to the RF1 board.

Photos

Part List

Frame	Speed Addict SuperLight (3 inch) (7 builds) Catalystmachineworks.com	$47.00
Flight Controller	RaceFlight Millivolt Flight Controller (7 builds) Raceflight.net	$41.88
ESCs	RaceFlight Spark 4n1 ESC (5 builds) Raceflight.net	$65.00
Motors	4 x Rotorgeeks 7075 Series 1407 4000kv Catalystmachineworks.com	$55.96
Propellers	2 x 1 Pair DYS 3045 3 Inch 3 Blade Propeller Triblade Bullnose Prop Red Orange Yellow Green Blue Purple (32 builds) Banggood.com	$2.78
FPV Camera	600TVL 1/4 1.8mm CMOS FPV 170 Degree Wide Angle Lens Camera PAL/NTSC 3.7-5V for RC Drone FPV Racing (94 builds) Banggood.com	$7.37
FPV Transmitter	Eachine VTX03 Super Mini 5.8G 72CH 0/25mW/50mw/200mW Switchable FPV Transmitter (417 builds) Banggood.com	$12.22
Receiver	Frsky XM+ Micro D16 SBUS Full Range Mini Receiver Up to 16CH for RC FPV Racing Drone Banggood.com	$13.69
Batteries	Turnigy Bolt 850mAh 4S 15.2V 65~130C High Voltage Lipoly Pack (LiHV) Hobbyking.com	$18.41

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Discussion

Routybouty Aug 05, 2017

Nice build, mine is very similar. How is the spark holding up?

aaron.m.aab May 30, 2017

You started your build with the Mini Brushless F3 Flight Control System but looks like you changed it. Any particular reason? I was looking at building something similar to this and was just curious what prompted the change.

gzuk May 31, 2017

I really liked the Mini Brushless F3 FC, but the ESC wasn't up to handling 4S. I went through 2 of the ESC's, each lasted about a minute of flight. I'm seeing a lot of people having the same issue running 4S on that same combo.

I would maybe look at the HGLRC stack for something similar, I've heard some people are having good luck with it on 4S. I may try it on a future build. It doesn't have OSD though.

https://www.banggood.com/Upgrade-20x20mm-XJB-V2-PBF3-EVO-Flight-Control-AIO-PDB-BEC-D-shot-25A-Blheli_S-2-6S-4-in-1-ESC-p-1142584.html?rmmds=search