CA320T sub250 Tailsitter (Ardupilot / DJI o4 Lite)

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CA320T Sub-250 Tailsitter

 

The CA320T is a sub-250g fixed-wing tailsitter designed for efficient midrange FPV flying while staying lightweight and compact. The airframe design is fully finalized and optimized for performance, portability, and ease of printing.

This platform runs on ArduPilot and is currently tuned for stable hover flight. Transition tuning (hover ↔ forward flight) is still in progress and will be refined over time. Updated configurations will be maintained on GitHub as development progresses:
https://github.com/CarviFPV/CA320T/blob/main/z_Ardupilot/PARAM/latest_v1.param

 

The project is open for collaboration—if you achieve a well-tuned setup, feel free to share your parameters so others can benefit.

 

Hover Video:

 

 

Core Specs

• Platform: Fixed-wing tailsitter
• Class: Sub-250g
• Firmware: ArduPilot
• Use case: Midrange FPV

Recommended Setup

• Flight Controller: Matek F405-WMO
• Receiver: Happymodel EP1
• VTX: DJI O4 Lite
• Motors: P1604 3800KV
• Propellers: HQProp T3.5x2x3
• ESC: LittleBee 20A

Build Instructions
👉 https://carvilabs.com/products/carvifpv/ca320t/wiki/build-instructions

 

Simulator Models (X-Plane 11 / 12)
If you want to test the aircraft before building, or learn and experiment with ArduPilot, dedicated simulator models are available:
👉 https://carvilabs.com/products/carvisim/ca320t-x-plane

SITL (Mission Planner)