2"/2.5" 2S hungryshark: feed me

By deks on Jul 08, 2018

33  1,235  20

Originally my babyshark. I was annoyed by the micro cmos cam: bad low light, bad dynamic range, and also poked out from the front of the canopy because the cam I got had a longer lens than the canopy was designed for. So I designed a new canopy that works with cam+vtx AIOs, which I've found has better video quality.

This build is relatively heavy, ~45g dry. The 300mah nanotechs sag immediately. The 450mah glaciers do a lot better.

This build has gone through a lot of variation: different flight controllers, props, batteries, cams - and it seems to fly well no matter what. Also I finally broke the bottom plate on my original babyshark, and swapped things over to a 2.5" 3mm thick prototype babyshark from lazd. Need to do a more careful comparison, but 2.5" feels surprisingly good even on these little 1103s. 3mm is excessive, and pushes the dry weight to ~50g w/ rotorx 2535 biblades, ~53g w/ the gemfan flash, but it still handles quite well.


Part List


Babyshark (9 builds)

Flight Controller

Full speed 16 x 16 mounting hole 2S F3 Flight tower DSHOT 600 with OSD - $30.55 |GearBest.com (3 builds)

Flight Controller

Super_S 16x16mm Betaflight STM32F3 F3 Flight Controller Integrated with OSD BEC for RC Drone (2 builds)


Fishpepper 5A BB2 48MHz DSHOT600 1-2S 4in1 ESCSKU: FPV-0252-S (10 builds)


4 x Racerstar Racing Edition 1103 BR1103B 8000KV 10000KV 1-3S Brushless Motor Pink For 50-100 RC Drone FPV Racing (5 builds)


EaglePower S1103 8000kv Brushless Motor - 4pcs (2 builds)


RotorX RX 2535 Props (8 CW & 8 CCW) (27 builds)


Gemfan Flash 2540 Tri-Blade 2.5" Prop 8 Pack - Choose Your Color (171 builds)


DAL Cyclone 2035 Quad-Blade 2" Prop 8 Pack - Choose Your Color (9 builds)


HQ Prop 2.5x3.5x3 Tri-Blade 2.5" Prop 4 Pack - Choose Your ColorGreen (27 builds)

FPV Camera

LST - S2 5.8G 800TVL HD Micro CMOS FPV Camera - $9.99 |GearBest.com (11 builds)

FPV Camera

Crazepony FPV Micro AIO Camera 5.8G 40CH 25mW Video Transmitter VTX Switchable Raceband Support OSD FOV 150°for FPV Drone li (4 builds)


8CH SUBS Super Micro Compatible Receiver for Frsky X9D Plus (4 builds)


AirBlade Basic 300mAh 2S 7.4V 45C XT30 by Tattu (2 builds)


Turnigy nano-tech 300mAh 2S 35~70C Lipo Pack (28 builds)


Glacier 25C 450mAh 2S 7.4V LiPo Battery with JST Connector (6 builds)


AirBlade Premium 500mAh 2S 7.4V 75C XT30 by Bonka (2 builds)

Misc Parts

4 PCS Eachine Propeller Guard For Aurora 100 Mini FPV Racing RC Drone 1102 1103 1104 1105 Brushless Motor (13 builds)

Misc Parts

Hungryshark canopy (for Falcon Multirotors Babyshark bottom plate by deks_
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Arrow fpv   Aug 05, 2020  

can you build it on a whoop frame?

Rice_Bowl   Oct 13, 2018  

are the eagle power motors nice? better than the racerstars?

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Rice_Bowl   Oct 13, 2018 

Thanks for the reply!! i might be able to add my own wire if thats the case. Thanks again!!

deks   Oct 13, 2018 

Sure thing. Using your own wire isn't a bad idea, check out this tutorial from fishpepper: https://fishpepper.de/2017/09/08/tutorial-replacing-stiff-motor-wires-with-flexible-ones-no-more-breaking-wires-br1103b/

It's just a bit of work to do it for all 4 motors :-).

Rice_Bowl   Oct 13, 2018 

time to find some really tiny wire hahah

Rice_Bowl   Sep 22, 2018  

whats your flight time on those gemfan flash 2.5 props?

deks   Oct 03, 2018 

I don't know exactly, but something around 3:00 to 3:30 I think. I didn't notice a massive difference between the 2" and 2.5" versions, but I was also changing a lot of things at the same time (battery size, frame size/weight, prop size), so can't say for sure.

Rice_Bowl   Oct 03, 2018 

thankss~ i finished my build too which is similar to yours but different frame (since it doesnt shipe here)

FerreeFPV   Oct 03, 2018  

Did you design the camera 3d mount? Can you post where you got it please. I printed your canopy which I love. My frame will be here on friday and I am trying to get everything ready to go.

deks   Oct 03, 2018 


The cam mount is the same configuration/dimensions as the Falcon Multirotors Tinyshark: a little tray that holds the cam and mounts to the two front electronics stack screws, underneath the ESC. Here are the designs from Falcon Multirotors for the Tinyshark mount: https://www.thingiverse.com/thing:2608546

Good luck! Would love to hear how your build turns out :)

Rice_Bowl   Sep 17, 2018  

whoaaa you really puch the limits of this thing hahah. I applaud you bruh!!

MaximusFPV   Jul 28, 2018  

Awesome flying, loved that first little clip. Playgrounds are great and those Cyclones are AMAZING! One tip, try either diving through or swooping up through that set of circular monkey bars. It looks really cool to come up through it, do a half flip so you pitch down facing it, and then shoot off and keep flying.

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MaximusFPV   Aug 01, 2018 

Worst that happens is you crashand fall a few feet. Those tend to do less damage than most of my normal, head-on crashes.

MaximusFPV   Aug 01, 2018 

Also, I lowered my rates after I saw this and went to the playground and it was great! Lower rates makes it harder to overcorrect and playgrounds become much more fun :)

deks   Aug 01, 2018 

Nice - I've been meaning to try lower rates, just been hesitant to mess with it. I'm at ~1111 deg/s on all axes (RC rate 1.0, Super 0.83). I tend to push it too far especially on yaw, but I've been keeping everything the same because I keep meaning to learn inverted yaw spins :D

Booda3000   Jul 10, 2018  

Nice flying!
what kind of flight times u getting?

deks   Jul 19, 2018 

I haven't been paying that much attention, but flight times are surprisingly good considering it's not that light. I would guess 3-4 minutes of freestyle on 450-500mah typically.

ghostface   Jul 10, 2018  

Love the canopy - great design! Also awesome flying!

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