TWIST_DT
A tiny twin-motor 3D-printed wing for exploring differential thrust, low-speed stability, and twisted-wing yaw behaviour.
TWIST_DT is a prototype WUDFLY wing built around two 1003 drone motors, a 750 mAh 2S battery, an F4 flight controller, and a lightweight printed airframe. The goal is simple: develop a calm, stable, low-speed aircraft while testing the interaction between differential thrust and proverse yaw from the wing geometry.
Prototype in development
First prototype concept page. Files are not released yet. This page exists to show the design direction, key numbers, and development intent.
Watch the prototype announcement.
This LinkedIn post contains the original TWIST_DT development video and early design notes.
What TWIST_DT is for
TWIST_DT is not just a small wing. It is a testbed for control behaviour, low-speed stability, differential thrust, and yaw response on a lightweight 3D-printed aircraft.
Differential thrust
Two small drone motors allow the flight controller to use thrust split as part of the aircraft control strategy.
Twisted tips
The outer wing uses progressive geometric twist, reaching 6° at the tip, to explore yaw and stability effects.
Low speed focus
The target is a calm-day aircraft that can be tuned for robust, stable, low-speed flight rather than only raw speed.
Blown centre section. Twisted outer wing.
The centre section is blown by the twin motors, while the outer wing carries progressive geometric twist. The interesting question is how that blown centre section, differential thrust, and proverse-yaw-focused geometry interact once the aircraft is actually flown and tuned.
Prototype specifications
Early target numbers from the first TWIST_DT concept post.
Development questions
TWIST_DT is a deliberately experimental aircraft. These are the things it is meant to teach.
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How much yaw authority can differential thrust provide?
The twin-motor layout creates a clean opportunity to test thrust-based yaw control on a tiny wing. -
How does the blown centre section change low-speed behaviour?
Propwash over the central wing may help the aircraft stay controllable at lower airspeeds. -
Can the geometry contribute useful proverse yaw?
The twisted outer wing is intended to explore yaw behaviour without relying on vertical surfaces. -
Can a robust PID tune make it feel calm?
A major goal is to tune the aircraft into something stable and enjoyable on calm days.
Related WUDFLY pages
TWIST_DT is still in development. Start with BANDITO if you want the current released aircraft.
BANDITO
Released sub-250g 3D-printed FPV wing built around DJI O4 Lite, 4S power, and INAV.
View BANDITO →DEV LAB
Private builder space for WUDFLY aircraft owners, updates, support, and development notes.
Open DEV LAB →Print profiles
LW-PLA profile guidance and downloadable profile resources for lightweight aircraft parts.
View profiles →Design resources
Aircraft design tools, courses, INAV learning links, and useful creator references.
Start learning →TWIST_DT is coming soon.
This is an experimental WUDFLY prototype, not a released aircraft package yet. Follow the development post, explore the current BANDITO aircraft, or get in touch if you want to talk about the concept.