Hot Hatch - A 4" O3 Freestyle Platform

By SlightlyScratchedCorolla on May 01, 2024

4  0  2

I believe O3 unlocks the freestyle potential of 3-4" quads but I've long been troubled by other O3 freestyle platforms overly long ass aka fuselage. Damn DJI for gigantic VTXs, or damn us for lack of space management?

Entering Hot Hatch: One simple trick of drilling two more sets of mounting holes front and back (see them in pic 2), now we have a frame that can comfortably swallow most 5" mini stacks (you can put the aikon 50A in it, not the Foxeer Reaper 66A though) and a O3 Air Unit, without its ass poking out (Pic 5).

Coming in at 70g with 4mm arms and a 172mm large wheelbase, it can fit 3.5-4" props with no props in view. It strikes a good balance of weight, durability, components compatibility, and maybe coolness.

Bonus points: the hatch design from Ummagawd Remix V2 simplifies maintenance (gotta pay homage to my favorite frame of all time), and the core locking mechanism inspired by Ryan Harrell's QAVS-V2 stiffens the frame while making arm swap a breeze.

Recognize the plaided seat? You already know what it is.


Part List

Flight Controller

Aikon F7 Mini V3 20x20 BMI270 Flight Controller (6 builds)
See Site


Gemfan Hurricane 4024 Durable Bi-Blade 4" Prop 8 Pack - Choose Your Color (13 builds)

FPV Camera

DJI O3 Air Unit (80 builds)
Show stores (3)


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Jodie Froster   May 05, 2024  

How do you like the pair-o-whips' antenna setup on the 03? I have been considering it on my 3.5"

SlightlyScratchedCorolla   May 06, 2024 

Way better than the stock on 3.5", lighter, much more durable, range is fine for micros.

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