The Flywoo Explorer LR 4 O3 Frame Kit is a lightweight and durable 4-inch long-range FPV drone frame designed specifically for pilots who want to build a compact, efficient, and reliable long-range quadcopter. Optimized for the DJI O3 Air Unit, this frame combines premium 3K carbon fiber construction with an intelligent layout that maximizes flight efficiency while keeping the overall weight low. It is an excellent choice for FPV enthusiasts looking to build a sub-250g drone capable of cinematic flights, long-distance exploration, and smooth cruising.
Built around Flywoo's signature Explorer LR platform, the frame features a compact deadcat-style geometry that keeps the propellers out of the camera's field of view, allowing you to capture clean HD footage without distracting propeller blades appearing in your videos. The specially designed camera canopy provides excellent protection for the DJI O3 camera while ensuring optimal camera placement for stable, vibration-free footage.
The frame is manufactured from high-quality 3K carbon fiber, offering an ideal balance between strength, rigidity, and lightweight performance. Carbon fiber construction helps reduce vibrations during flight while maintaining excellent structural integrity during demanding FPV sessions. Its modular design also allows individual frame components to be replaced, making repairs faster and more cost-effective after crashes or hard landings.
Designed with builders in mind, the Explorer LR 4 O3 supports both 16×16mm and 20×20mm flight controller stacks, giving users the flexibility to choose from a wide variety of modern mini flight controllers and ESC combinations. The frame also provides dedicated mounting positions for GPS modules, buzzers, receivers, and the DJI O3 Air Unit, ensuring a clean internal layout with efficient cable management.
The lightweight construction makes it an ideal platform for long-range FPV flights where endurance and efficiency matter. When paired with efficient motors, lightweight electronics, and Li-Ion or LiPo batteries, the Explorer LR 4 is capable of delivering impressive flight times while maintaining smooth handling and excellent stability. This makes it suitable for mountain cruising, nature exploration, aerial videography, and recreational long-range flying. Community builds frequently use 1404-class motors and 4-inch bi-blade propellers for efficient performance.
Whether you're building your first long-range FPV drone or upgrading an existing Explorer platform, the Flywoo Explorer LR 4 O3 Frame Kit provides a premium foundation with outstanding compatibility, lightweight construction, and thoughtful engineering to support a wide range of custom FPV builds.
Key Features
Lightweight 3K carbon fiber construction
Designed specifically for DJI O3 Air Unit compatibility
Compact 4-inch long-range FPV frame
Deadcat geometry keeps propellers out of camera view
Durable modular frame for easy maintenance
Supports 16×16mm and 20×20mm flight controller stacks
Spacious layout for clean electronics installation
Dedicated GPS and receiver mounting positions
Excellent balance of strength and lightweight performance
Ideal for cinematic, cruising, and long-range FPV builds
Package Includes
1 × Flywoo Explorer LR 4 O3 Carbon Fiber Frame Kit
1 × O₃ Camera Canopy
1 × TPU Printed Parts Set
1 × Top Plate
1 × Bottom Plate
1 × Center Plate
2 × Front Arms
2 × Rear Arms
2 × Side Plates
2 × Battery Straps
1 × Battery Pad
Hardware and Mounting Screws
Insulation Sheets
Applications
Long-Range FPV Flying
Cinematic FPV Drone Builds
DJI O3 Custom Drone Projects
Nature Exploration
Mountain Cruising
Recreational FPV Flying
Lightweight DIY Drone Builds
Engineering and Research Projects
FPV Content Creation
Sub-250g Drone Builds