SC 140 - 3D Printed RC Airplane (1400mm Wingspan / Custom FPV Cargo Plane)

## Overview

The SC 140 is an upgraded, fully custom-engineered, 3D-printable RC airplane featuring an extended 1400mm wingspan. Designed for long-range flight, FPV setups, and stable aerodynamic performance, this aircraft combines a modular construction with optimized internal space for heavy electronics and payloads. 

Whether you are looking for a highly efficient FPV platform, a stable trainer, or a functional cargo and utility RC model, the SC 140 delivers excellent gliding performance, high lift, and a rewarding assembly experience.

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## Technical Specifications

* **Wingspan:** 1400mm

* **Length:** 800mm

* **Motor:** Single motor setup

* **Servos:** 4x Micro servos

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## Hardware & Reinforcement Rods

Below is the required hardware list for reinforcement and assembly. You can use standard carbon fiber rods, or alternative budget-friendly items as specified:

* **Main Wing Rod:** 6mm x 1000mm (1x)

* **Secondary Wing Rod:** 6mm x 300mm (1x) - Carbon Rod (or BBQ skewer stick)

* **Elevator Trim Rod:** 3mm x 160mm (2x) - Carbon Rod (or BBQ skewer stick)

* **Aileron Trim Rod:** 3mm x 300mm (2x) - Carbon Rod (or BBQ skewer stick)

* **Main Connections:** 3mm x 30mm (4x) - Carbon Rod (or BBQ skewer stick)

* **Alignment Connections:** 2mm x 20mm (16x) - 3D Printing Filament (or toothpick)

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## Features & Design Specs

* **Modular Fuselage:** Divided into functional interlocking sections (Front Fuselage, Rear Fuselage, Mid Wings) designed to fit standard 3D printer build plates.

* **Removable Canopies:** Features quick-access Front and Rear Canopy hatches with secure locking tabs for rapid battery swaps and effortless electronics maintenance.

* **Aerodynamic Efficiency:** Precision wing profiles with integrated control surfaces (Ailerons, Elevator, and Rudder) and built-in trim tabs for stable tracking.

* **Generous Electronics Bay:** Ample internal volume tailored to accommodate advanced flight controllers, GPS modules, high-power digital FPV air units, and large LiPo/Li-Ion battery configurations.

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* **Pre-Configured File:** A ready-to-print .3mf file is included with all the recommended settings (3-4% Cubic infill, 0.28mm layer height) already configured for your convenience.

🔄 Latest Updates:

• Update v2 (June 24, 2026):
• Rear Elevator Servo Bay: Enlarged for a better servo fit.
• Motor Mount: Changed/redesigned for a better fit.