Shadow5 - Ultralight 5 inch

By BrechtFPV on May 03, 2020

16  676  6

My take on a 5 inch ultralight "toothpick" style quad:

DVR Video

Some decent PIDs for the SL5125:
Alt Tag


Part List


Shadow5 - Ultralight 5 inch Quadcopter by BrechtFPV
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Gatehunter X Canopy by Dave_C_FPV (2 builds)
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Flight Controller

GEPRC GEP-20A-F4 AIO F4 MPU6000 Flight Controller OSD 20A Blheli_S 2-4S Brushless ESC 26.5×26.5mm (6 builds)


4 x US $49.37 |New Arrival 1408 Brushless Motor AOKFLY BS1408 2500KV/3600KV for FPV 120 150mm CineWhoop Racing Quadcopter Multiroto
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2 Pairs HQprop Toothpick Durable T5X3 5 Inch 5030 Propeller Grey Poly Carbonate for RC Drone FPV Racing (7 builds)


HQ Durable Prop T5X2X3 (2CW+2CCW)-Poly Carbonate (3 builds)


US $2.99 |8PCS Gemfan Hurricane SL 5125 5.1inch 3 blade FPV Propeller 1.5/2.0mm for RC Drone FPV Racing Freestyle Iflight Nazgul
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FPV Camera

Caddx Baby Ratel Starlight HDR 1200TVL Nano FPV Camera (1.8mm) - Yellow (20 builds)

FPV Transmitter

Eachine NANO VTX 5.8GHz 48CH 25/100/200/400mW Switchable FPV Transmitter Support OSD/Pitmode/IRC Tramp (50 builds)


US $17.99 50% OFF|Oversky XR602T A 14CH SBUS Micro Mini RC Receiver 2KM Range Double Antenna Compatible FlySky AFHDS 2A I6X I6 T
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Gaoneng GNB 14.8V 750mAh 80C 4S XT30 Plug Lipo Battery for RC Drone (11 builds)


US $0.42 |50PCS DIN912 Grade 12.9 allen socket head screw M2*8 m2x8 Hexagon Socket Head Cap Screws Hex Socket Screw|Screws| -
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Misc Parts

5 PCS URUAV PADSTAR 100x50mm Sticky Battery Mat Non-slip Pad Support Washing for 4S 1300/1500mAh Lipo Battery (3 builds)

Misc Parts

US $6.99 |iFlight 1.5*15CM/15*150mm 150mm length red Battery strap belt with Metal Key for FPV Rc Racing Frame kit|esc brushless
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Battery Charger

US $61.38 7% OFF|HTRC C240 DUO AC 150W DC 240W Dual Channel 10A RC Balance lipo battery Charger|Chargers| - AliExpress
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Soldering Iron

MINI TS100 Digital OLED Programmable Interface DC5525 Soldering Iron Station Built-in STM32 Chip (197 builds)
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Sub 250g FPV   May 07, 2020  

Nice build, I recognise that canopy from somewhere ;-), I'd suggest raising the TPA a bit and reducing your P values a bit to help with the high throttle oscillations.

BrechtFPV   May 09, 2020 

Haha, already broke the canopy. I actually lowered the TPA and raised the P gains to get rid of the oscillations. I will try it the other way around and see if it works better!

Sub 250g FPV   May 10, 2020 

What thickness is your frame ?

BrechtFPV   May 10, 2020 

5mm thick 3K carbon fiber. Going to replace the canopy by Dave_C_FPV's canopy design though.

Oeliboeb   May 05, 2020  

how does it fly?

BrechtFPV   May 06, 2020 

Flies pretty well! I think it needs some tuning but it has got lots of power. I will try to add the DVR video.

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